{"title":"Preamplifiers \u0026 Phono Stages","description":"\u003cp\u003eA preamplifier is the control center of a separates system: it selects your source, sets the volume and feeds a power amplifier. A phono stage, or phono preamp, boosts the very small signal from a turntable cartridge and applies RIAA equalization so records play at the correct level and tone. This collection includes phono stages from \u003ca href=\"\/collections\/unison-research\"\u003eUnison Research\u003c\/a\u003e and line preamps and DAC-preamps from \u003ca href=\"\/collections\/nuprime\"\u003eNuPrime\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDo I need a phono stage for my turntable?\u003c\/h3\u003e\n\u003cp\u003eYes, unless your amplifier or turntable already has one built in. Check for an input marked Phono.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between MM and MC?\u003c\/h3\u003e\n\u003cp\u003eMoving magnet (MM) and moving coil (MC) are cartridge types. MC cartridges have lower output and need a phono stage with MC gain.\u003c\/p\u003e\n\u003ch3\u003eCan a DAC replace a preamplifier?\u003c\/h3\u003e\n\u003cp\u003eIf your sources are all digital, a DAC with volume control can drive a power amplifier directly. For analog sources you still need a preamp.\u003c\/p\u003e\n","products":[{"product_id":"unison-research-simply-phono","title":"Unison Research Simply Phono","description":"\u003cp\u003eWhile phono preamps with valves are becoming increasingly common, not all of them offer stunning performance within their respective price classes. The Unison Research Simply Phono is simply that—an outstanding tubed phono stage that offers incredible performance for the price.\u003c\/p\u003e\n\u003cp\u003eAs can be easily verified there’s a renewed interest for vinyl in the hi-fi market. The Black Disk seems to catch the attention of a wider audience that the consolidated lovers it always could rely on.\u003c\/p\u003e\n\u003cp\u003eAware of this trend \u003cem\u003eUnison Research\u003c\/em\u003e decided to enhance its catalogue adding a new turntable+arm+cartridge system named \u003cem\u003eGiro\u003c\/em\u003e and to work on a new release of two of its standalone phono stages: \u003cem\u003eSimplyPhono\u003c\/em\u003e and \u003cem\u003ePhonoOne\u003c\/em\u003e.\u003c\/p\u003e\n\u003cp\u003eThe new \u003cem\u003eSimplyPhono\u003c\/em\u003e bears the same name and indeed shares the same appearance as its predecessors but thanks to a revisited circuitry and improved layout it exhibits noticeably better audio performances.\u003c\/p\u003e\n\u003cp\u003eAs its predecessor the new \u003cem\u003eSimplyPhono\u003c\/em\u003e is an all-tube phono preamplifier. All the stages work in pure class A and no global negative feedback neither local feedback is applied. It employs 4 ECC83\/12AX7 double triode (versus the 3 ones used in the previous release of the unit).\u003c\/p\u003e\n\u003cp\u003eThe tubes are arranged so that the first couple of triodes acts in parallel as a maximum gain stage implementing a particular configuration named “ionic bias” in order to prevent the cathode self-polarizing circuit from introducing unwanted local reverse-effects and with improved performances as regards noise and distortion.\u003c\/p\u003e\n\u003cp\u003eFor the RIAA equalization network a completely passive solution has been chosen after some listening test. The use of strict tolerance resistors and hand picked, measured and selected capacitors ensures a precision of 0.1dB of the frequency response.\u003c\/p\u003e\n\u003cp\u003eThe equalization network is followed by a second gain stage direct coupled with a cathode follower output stage as an optimal solution in order to achieve the needed overall gain and a low output impedance.\u003c\/p\u003e\n\u003cp\u003eParticular care has been put in the power supply stages. In order to maximize the dynamic response of the unit a high value for the anodic supply has been chosen. A particular circuit using a series power MOSFET and a precise voltage regulator ensures a stable low ripple supply voltage of more than 300V. A further filter feeds the second and output stages of both channel with a very stable voltage.\u003c\/p\u003e\n\u003cp\u003eIn order to minimize cross-talk and PSRR (power supply rejection ratio) in the first (and more tricky) gain stage a last couple of RC filters and a zener regulations has been implemented, one for each channel.\u003c\/p\u003e\n\u003cp\u003eAs usual for \u003cem\u003eUnison Research\u003c\/em\u003e technical staff, a great care has been dedicated to the design of the layout of the board. This is a key feature that is often undervalued but that can heavily affect the final result. A smart symmetrical design, outcome of a long dated knowledge, improved even more cross-talk and noise parameters.\u003c\/p\u003e\n\u003cp\u003eAs an example we can measure a huge improvement of cross-talk over all the audio spectrum with a reduction of 20dB at middle band frequencies.\u003c\/p\u003e\n\u003cp\u003eWith a gain that makes it suitable for all MM and medium to high level MC cartridges, with a noticeable improvement of sonic performances, with improved quality RCA connectors and input impedance variable setting the new \u003cem\u003eSimplyPhono\u003c\/em\u003e accentuates it already high value.\u003c\/p\u003e\n\u003cp\u003eSpecifications\u003c\/p\u003e\n\u003cp\u003eType : Stereo Phono Valve preamplifier\u003c\/p\u003e\n\u003cp\u003eClasse: pure A class\u003c\/p\u003e\n\u003cp\u003eRIAA : passiva +\/- 0.2 dB ( 20 Hz \/ 20 KHz )\u003c\/p\u003e\n\u003cp\u003eOutput Impedance: 800 ohm.\u003c\/p\u003e\n\u003cp\u003eUscita: 1 x line\u003c\/p\u003e\n\u003cp\u003eGain : 52 dB\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion (THD): 0.4 % at 1 volt output\u003c\/p\u003e\n\u003cp\u003eSignal to Noise Ratio (S\/N): – 72 dB\u003c\/p\u003e\n\u003cp\u003eInputs: 1 x fonorivelatore MM o MC\u003c\/p\u003e\n\u003cp\u003eInput Impedance: 47 Kohm – 100 – 50 – 22 ohm \/ 100 pF (modifiable)\u003c\/p\u003e\n\u003cp\u003eFeedback factor: 0 dB\u003c\/p\u003e\n\u003cp\u003eValves: 4 x ECC83 \/ 12AX7\u003c\/p\u003e\n\u003cp\u003ePower Supply: externel\u003c\/p\u003e\n\u003cp\u003eDimension: 140 x 290 x h 105 ( mm )\u003c\/p\u003e\n\u003cp\u003eNet Weight: 3 Kg (including power supply)\u003c\/p\u003e","brand":"Unison Research","offers":[{"title":"Default Title","offer_id":41659676360901,"sku":"Simply Phono","price":1999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/products\/symply-phono-front.jpg?v=1661439885"},{"product_id":"unison-research-phono-one","title":"Unison Research Phono One","description":"\u003cp\u003ePhonoOne has been one of the mostly appreciated UnisonResearch units. Even if the production of this item has been discontinued some years ago the request never stopped so we decided to renew and improve this design. Nothing has changed it the external looking since the original design was so nice and timeless that even after many years it has it’s untouched aesthetic appeal.\u003c\/p\u003e\n\u003cp\u003eThe circuit implemented has lots of features in common with the SimplyPhono, here one more tube has been used, bringing up to 10 the number of triode (i.e. 5 ECC83\/12AX7 double triodes). All of the gain stages are now implementing parallel configuration for the best noise and distortion performances. This solution increases also the overall gain to approximately 54dB, enough for all the MM and most of the MC cartridges. The same passive RIAA network has been adopted but with special selected components in order to ensure strict tolerance to the equalization curve. Increased value for the output capacitors improves bandwidth and phase rotation at low frequencies.\u003c\/p\u003e\n\u003cp\u003eIn order to avoid the problem of dc voltage and bump during the warm up and switch off time of the unit a delayed muting function has been implemented, this way the output is disabled till the tubes reaches they’re optimal temperature and working point at the switch on and prevent the loud bump at the switch off. While in SimplyPhono only the resistive component of input impedance is selectable here both resistance and capacitance can be matched to the requirement of any cartridge for best performances. A dedicated free location on the PCB allows the installation of custom value resistors in order to set the interface parameters even at any non common value.\u003c\/p\u003e\n\u003cp\u003eParticular care has also been dedicated to power supply design. In order to minimize cross-talk and inter-stage interference an independent RC filter cell has been placed near every gain stage, thus reducing the cross-talk (especially at low frequency) of more than 20dB in comparison with the extraordinary performances of SimplyPhono. In the new PhonoOne low frequency cross-talk is practically immeasurable, less than -90dB. Also a careful layout design improving channel separation and interference rejection, together with an elastic suspension of the amplifier board helped bringing the sonic performances of the new PhonoOne to a supreme level of natural detail and musical clarity.\u003c\/p\u003e\n\u003cp\u003eAs imposed for a no-compromise design, all the supply voltage are regulated and heavy filtered. Nothing has been neglected: all the signal wiring are hand soldered using shielded wire, the placement of the tubes takes care of the mechanical micro distortion of the physical parts of the tubes when operated in horizontal position, oversized power components and adequate cooling ensures high reliability.\u003c\/p\u003e\n\u003cp\u003eWe are sure the new PhonoOne will be highly appreciated by anyone looking for a phono preamplifier able to offer an involving listening experience.\u003c\/p\u003e\n\u003cp\u003eSpecifications\u003c\/p\u003e\n\u003cp\u003eType: Stereo Phono Valve preamplifier\u003c\/p\u003e\n\u003cp\u003eClass: pure A\u003c\/p\u003e\n\u003cp\u003eRIAA : passive +\/- 0.1 dB (20 Hz \/ 20 KHz)\u003c\/p\u003e\n\u003cp\u003eOutput Impedance: 800 ohm.\u003c\/p\u003e\n\u003cp\u003eOutputs: 1 x line\u003c\/p\u003e\n\u003cp\u003eGain : 54 dB\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distorti on (THD): 0.1 % at 1 volt output\u003c\/p\u003e\n\u003cp\u003eSignal to Noise Ratio (S\/N): – 80 dB\u003c\/p\u003e\n\u003cp\u003eInputs: 1 per fonorivalatore MM o MC\u003c\/p\u003e\n\u003cp\u003eInput Impedance: 47 Kohm – 100 – 50 – 22 ohm \/ 100 – 200 – 320 – 420 pF ( modifiable )\u003c\/p\u003e\n\u003cp\u003eFeedback factor: 0 dB.\u003c\/p\u003e\n\u003cp\u003eValves: 5 x ECC83 \/ 12AX7\u003c\/p\u003e\n\u003cp\u003eAlimentatore: esterno\u003c\/p\u003e\n\u003cp\u003eDimension: 37.3 x 5.84 x h 24.63 cm.\u003c\/p\u003e\n\u003cp\u003eNet Weight: 3.6 Kg circa (including power supply)\u003c\/p\u003e","brand":"Unison Research","offers":[{"title":"Default Title","offer_id":41659679015109,"sku":"Phono One","price":3499.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/products\/phonoonefront.jpg?v=1661440051"},{"product_id":"unison-research-uphono","title":"Unison Research uPhono+","description":"\u003cp\u003euPhono+ is a multifunctional MM\/MC phono preamplifier featuring high resolution A\/D processing and conversion, three digital outputs and a high-current headphone stage.\u003c\/p\u003e\n\u003cp\u003euPhono+ Analogue Features\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMoving Magnet (MM) stage gain: 38dB @ 1kHz\u003c\/li\u003e\n\u003cli\u003eMoving Coil (MC) stage gain 58dB or 69dB @ 1kHz selectable with dip-switches\u003c\/li\u003e\n\u003cli\u003eMM cartridge input with 4 loading capacitor values (100\/200\/320\/420pF) selectable with dip-switches\u003c\/li\u003e\n\u003cli\u003eMC cartridge input with 7 loading resistor values (20\/50\/100\/150\/250\/500\/1kOhm) selectable with dipswitches\u003c\/li\u003e\n\u003cli\u003eFixed level analogue output\u003c\/li\u003e\n\u003cli\u003eVariable level analogue output: level varied with front panel volume control\u003c\/li\u003e\n\u003cli\u003eHigh-current headphone stage: can be used with headphones from 16 to 600 ohms impedance\u003c\/li\u003e\n\u003cli\u003eSubsonic IEC anti-rumble filter with override dip-switch\u003c\/li\u003e\n\u003cli\u003eOptimized PCB layout and widespread use of SMD componentry to minimize the length of the signal path\u003c\/li\u003e\n\u003cli\u003eAlps® «Blue Velvet» potentiometer that simultaneously adjusts the volume of the headphone stage and the level of the variable output\u003c\/li\u003e\n\u003cli\u003eLow noise internal mains power supply with totally independent analogue and digital power supplies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003euPhono+ Digital Features\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUSB 24bit\/96kHz max. sample rate to record your vinyl discs on PC and save them in high-resolution formats\u003c\/li\u003e\n\u003cli\u003eToslink (96kHz) digital optical output\u003c\/li\u003e\n\u003cli\u003eS\/PDIF (96kHz) digital coaxial output\u003c\/li\u003e\n\u003cli\u003eA\/D conversion carried out using the Cirrus Logic CS5341 IC\u003c\/li\u003e\n\u003cli\u003eUSB asynchronous transmission using the Bravo SA9137 IC\u003c\/li\u003e\n\u003cli\u003eDigital optical and coaxial transmission using the TI DIT4096 IC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTechnical specifications uPhono+\u003c\/p\u003e\n\u003cp\u003eAnalogue Inputs Moving magnet cartridge (MM) \/ High output moving coil (MC) Low and ultra-low moving coil cartridge (MC)\u003c\/p\u003e\n\u003cp\u003eAnalogue Outputs Fixed level analogue output Variable level analogue output Headphones (16-600Ω): ¼ inch (6.35mm) stereo jack socket\u003c\/p\u003e\n\u003cp\u003eDigital Outputs USB B-type for connection to a PC (up to 24bit\/96kHz) Optical Digital Coaxial Digital\u003c\/p\u003e\n\u003cp\u003eInput Impedance MM 47kΩ+100\/200\/320\/420pF MC 20\/50\/100\/150\/250\/500\/1kΩ+1nF\u003c\/p\u003e\n\u003cp\u003eSystem Gain at 1kHz MM 38dB MC 58dB \/ 69dB selectable\u003c\/p\u003e\n\u003cp\u003eNominal output level 316mVRMS (-10dBV)\u003c\/p\u003e\n\u003cp\u003eInput sensitivity for nominal output level MM 3.36mVRMS MC (58dB) 0.336mVRMS MC (69dB) 0.1mVRMS\u003c\/p\u003e\n\u003cp\u003eSignal\/Noise Ratio MM -80dB MC (58dB) -64dB MC (69dB) -60dB\u003c\/p\u003e\n\u003cp\u003eRIAA curve accuracy +\/- 0.3dB from 20Hz to 30kHz\u003c\/p\u003e\n\u003cp\u003eIEC anti-rumble filter -3dB at 20Hz and 6dB\/octave\u003c\/p\u003e\n\u003cp\u003eOverload margin (headroom) 30dB THD+N at 1kHz MM 0.018% (10mVRMS in) MC (58dB) 0.12% (1mVRMS in) MC (69dB) 0.12% (1mVRMS in)\u003c\/p\u003e\n\u003cp\u003eLine output impedance Fixed 824Ω Variable 824Ω\u003c\/p\u003e\n\u003cp\u003eHeadphone stage Output level 2.18VRMS Max THD+N 0.07% (1kHz \/32Ω)\u003c\/p\u003e\n\u003cp\u003eUSB A\/D Resolution 16\/24 bit Sample rates 8, 16, 32, 44.1, 48, 88.2, 96kHz\u003c\/p\u003e\n\u003cp\u003eCoaxial digital output 0.5Vp-p a 75Ω \/ 96kHz max.\u003c\/p\u003e\n\u003cp\u003eMains voltage 100-120V AC\u003c\/p\u003e\n\u003cp\u003ePower 6.6W Dimensions (H x W x D) 82.5 x 216mm x 251mm (3.25 x 8.5 x 9.9 inches) including feet, connectors and knobs\u003c\/p\u003e\n\u003cp\u003eWeight 2.6Kg\u003c\/p\u003e","brand":"Unison Research","offers":[{"title":"Silver","offer_id":41659687207109,"sku":"uPhono+ Silver","price":1399.0,"currency_code":"USD","in_stock":false},{"title":"Black (Special Order)","offer_id":41659687239877,"sku":"uPhono+ Black","price":1399.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/products\/uphonoplussilverfront.jpg?v=1661440285"},{"product_id":"nuprime-ia-9xg-integrated-amplifier-phono","title":"NuPrime IA-9XG Integrated Amplifier with MM Phono Stage","description":"\u003cp\u003e\u003cstrong\u003eThe NuPrime IA-9XG is a compact analog integrated amplifier rated at 170 watts per channel into 8 ohms and 200 watts per channel into 4 ohms, with a built-in MM phono stage and a switch that lets you choose its sonic character.\u003c\/strong\u003e It pairs NuPrime's ODC distortion-cancellation Class D output with a harmonic generation circuit built on Class A transistors, and it runs from an ANC GaN power supply. At HiFi Boutique it ships free anywhere in the USA, with sales tax already included.\u003c\/p\u003e\n\n\u003ch2\u003eNuPrime IA-9XG at a Glance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower (RMS):\u003c\/strong\u003e 170W x 2 @ 8Ω, 200W x 2 @ 4Ω\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePeak power:\u003c\/strong\u003e 200W x 2 @ 8Ω, 250W x 2 @ 4Ω\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSound modes:\u003c\/strong\u003e ultra-low distortion (f0) or added natural harmonics (2f0), selected by toggle switch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhono stage:\u003c\/strong\u003e MM, two-stage RIAA circuit with MUSES8820 op-amps, 32k\/47k\/100k ohm loading and 100\/220\/320pF capacitance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e 1 x MM phono, 2 x stereo RCA, 1 x stereo XLR balanced\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e stereo speaker outputs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTriggers:\u003c\/strong\u003e 12V trigger in and out\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e digitally controlled analog volume with 99 steps and memory\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower supply:\u003c\/strong\u003e ANC GaN power supply with dual-phase interleaved power factor correction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e black or silver\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the IA-9XG\u003c\/h2\u003e\n\u003cp\u003eThe IA-9XG is built for an analog system. Its toggle switch selects between two voicings. In f0 mode only the ODC circuit runs, for ultra-low distortion and a neutral, detailed sound that NuPrime suggests for studio monitoring or dynamic music. In 2f0 mode a harmonic generation circuit with Class A transistors adds natural harmonics for a slightly warm, rich sound in the manner of a tube amplifier, which NuPrime suggests for vocal and classical music.\u003c\/p\u003e\n\u003cp\u003eThe output stage uses two of NuPrime's ultra-low distortion amplifier modules, with MUSES8820 op-amps in a delta-sigma circuit. Custom audio capacitors totalling 13,200µF and 25A bridge rectifiers give it current for driving loudspeakers.\u003c\/p\u003e\n\n\n\u003ch3\u003ePhono Stage\u003c\/h3\u003e\n\u003cp\u003eThe built-in phono stage is a two-stage RIAA amplifier using NJR MUSES8820 op-amps. Input resistance can be set to 32k, 47k or 100k ohms, and input capacitance to 100, 220 or 320pF, to suit different moving magnet cartridges. Input and output switching uses audio relays.\u003c\/p\u003e\n\n\u003ch3\u003eANC GaN Power Supply\u003c\/h3\u003e\n\u003cp\u003eA dual-phase interleaved GaN power factor correction circuit with active noise cancellation suppresses power supply noise. NuPrime says the PFC module measures 75 x 30 x 25 mm and delivers 600 watts.\u003c\/p\u003e\n\n\u003ch2\u003eWho It's For and System Pairing\u003c\/h2\u003e\n\u003cp\u003eThe IA-9XG is for listeners with a turntable, a CD player or an analog source who want a compact amplifier with real power. It accepts balanced XLR from a DAC such as the \u003ca href=\"\/products\/nuprime-dac-9x-dac-preamp-headphone-amp\" title=\"NuPrime DAC-9X\"\u003eNuPrime DAC-9X\u003c\/a\u003e. For a digital system, the \u003ca href=\"\/products\/nuprime-ida-9-integrated-amplifier-dac\" title=\"NuPrime IDA-9\"\u003eNuPrime IDA-9\u003c\/a\u003e adds a built-in DAC instead of the phono stage. Browse the full \u003ca href=\"\/collections\/nuprime\" title=\"NuPrime collection at HiFi Boutique\"\u003eNuPrime collection\u003c\/a\u003e to build out your system.\u003c\/p\u003e\n\n\u003ch2\u003eIA-9XG Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eIA-9XG\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIA-9XG\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eIntegrated amplifier with MM phono stage\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePower Output (RMS)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e170W x 2 @ 8Ω; 200W x 2 @ 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePower Output (Peak)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e200W x 2 @ 8Ω; 250W x 2 @ 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMax Output Current\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e15A @ 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eInputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 x MM phono; 2 x stereo RCA; 1 x stereo XLR; 1 x 12V trigger in (3.5mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOutputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eStereo speaker outputs; 1 x 12V trigger out (3.5mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eGain\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e38x\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSensitivity (to rated power)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0.93Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eInput Impedance\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e10kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0.11Ω; Class D output 0.01Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTHD (typical)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0.002% @ 20W \/ 8Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e10Hz – 35kHz (-3dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePhono Loading\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e32kΩ \/ 47kΩ \/ 100kΩ; 100pF \/ 220pF \/ 320pF\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMM Input Sensitivity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e4.0mV @ 1kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePhono Gain\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e65dB @ 1kHz (MM in to line out, max volume)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eStandby \/ Idle Power\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e7W \/ 14W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAC Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e115VAC \/ 230VAC, voltage select switch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFuse\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSlow-blow, 5A, 250VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBlack or silver\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e61 x 235 x 281 mm (2.4 x 9.3 x 11.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eNuPrime IA-9XG FAQ\u003c\/h2\u003e\n\u003ch3\u003eHow many watts is the NuPrime IA-9XG?\u003c\/h3\u003e\n\u003cp\u003eIt is rated at 170W RMS per channel into 8 ohms and 200W RMS per channel into 4 ohms.\u003c\/p\u003e\n\n\u003ch3\u003eWhat does the f0 \/ 2f0 switch do?\u003c\/h3\u003e\n\u003cp\u003eIn f0 the amplifier runs only its ODC circuit for ultra-low distortion. In 2f0 a harmonic generation circuit with Class A transistors adds natural harmonics for a warmer, richer sound.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the IA-9XG have a phono stage?\u003c\/h3\u003e\n\u003cp\u003eYes, a moving magnet phono stage with selectable 32k, 47k or 100k ohm loading and 100, 220 or 320pF capacitance.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the IA-9XG have a DAC?\u003c\/h3\u003e\n\u003cp\u003eNo. It is an analog amplifier with phono, RCA and XLR inputs. Add an external DAC for digital sources.\u003c\/p\u003e\n\n\u003ch3\u003eDoes it have balanced inputs?\u003c\/h3\u003e\n\u003cp\u003eYes, one stereo XLR input, along with two RCA inputs and the phono input.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the difference between the IA-9XG and the IA-9X?\u003c\/h3\u003e\n\u003cp\u003eNuPrime has discontinued the IA-9X, and the IA-9XG is its current model.\u003c\/p\u003e\n\n\u003ch3\u003eWhat warranty does the NuPrime IA-9XG have?\u003c\/h3\u003e\n\u003cp\u003eNuPrime lists a 1-year manufacturer warranty for the IA-9XG.\u003c\/p\u003e\n\n\u003ch3\u003eDoes HiFi Boutique charge shipping or sales tax on the IA-9XG?\u003c\/h3\u003e\n\u003cp\u003eNo. The IA-9XG ships free anywhere in the USA, and sales tax is already included, so the price you see is what you pay.\u003c\/p\u003e\n\n\n\u003ch2\u003eShipping and Pricing at HiFi Boutique\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFree shipping anywhere in the USA, with sales tax included in the price.\u003c\/strong\u003e No extra fees at checkout.\u003c\/p\u003e","brand":"NuPrime","offers":[{"title":"Black","offer_id":50852192190661,"sku":"NP-IA-9XG-BLK","price":1449.0,"currency_code":"USD","in_stock":false},{"title":"Silver","offer_id":50852192223429,"sku":"NP-IA-9XG-SVR","price":1449.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/files\/IA-9_5-1200x628px.png?v=1793472163"},{"product_id":"nuprime-dac-9x-dac-preamp-headphone-amp","title":"NuPrime DAC-9X DAC, Preamp \u0026 Headphone Amplifier","description":"\u003cp\u003e\u003cstrong\u003eThe NuPrime DAC-9X is a reference-class DAC, preamplifier and headphone amplifier with dual ESS9028Q2M converters, decoding PCM up to 384kHz, DSD256 and MQA.\u003c\/strong\u003e It has six digital inputs, including two I2S\/DSD inputs, plus one analog input, balanced XLR and RCA outputs, and a 6.3mm headphone output rated at 1700mW into 32 ohms. At HiFi Boutique it ships free anywhere in the USA, with sales tax already included.\u003c\/p\u003e\n\n\u003ch2\u003eNuPrime DAC-9X at a Glance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDAC:\u003c\/strong\u003e dual ESS Technology ES9028Q2M 32-bit DACs, one per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFormats:\u003c\/strong\u003e PCM to 384kHz, DSD256, MQA decoding\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDigital inputs:\u003c\/strong\u003e USB, 2 x I2S\/DSD, optical, coaxial, and an extension port for an optional wireless receiver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalog input:\u003c\/strong\u003e 1 x stereo RCA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e XLR balanced (8Vrms), RCA (4Vrms), optical, and a front 6.3mm headphone output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeadphone power:\u003c\/strong\u003e 1700mW @ 32Ω, 135mW @ 600Ω\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e THD+N below 0.0005%, SNR above 110dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e digitally controlled dual-mono analog shunt-to-ground volume, adjustable for each input\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e black or silver\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the DAC-9X\u003c\/h2\u003e\n\u003cp\u003eThe DAC-9X can be the centre of a system. Two ESS9028Q2M converters decode the left and right channels independently for better channel separation and lower noise. Vishay professional MELF film resistors sit in the signal path, and the power supply has anti-vibration treatment to keep hum low.\u003c\/p\u003e\n\u003cp\u003eIts preamp section uses a digitally controlled, dual-mono analog shunt-to-ground volume control, so it can drive a power amplifier directly with no extra preamp and fewer cables. Volume can be set for each input to match source levels.\u003c\/p\u003e\n\n\n\u003ch3\u003eMQA Decoding\u003c\/h3\u003e\n\u003cp\u003eThe DAC-9X decodes MQA files and streams. A front LED glows green or blue to show MQA decoding, with blue for MQA Studio, and magenta when it renders an MQA stream.\u003c\/p\u003e\n\n\u003ch3\u003eInputs and Outputs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUSB Type B: up to 384kHz\/24-bit and native DSD256 on Windows; up to 384kHz\/24-bit and DoP DSD128 on Mac and Linux\u003c\/li\u003e\n  \u003cli\u003eI2S\/DSD x 2: PCM 44.1kHz to 384kHz\/32-bit, DSD64 to DSD256, for connection to other NuPrime products\u003c\/li\u003e\n  \u003cli\u003eCoaxial: PCM to 384kHz\/24-bit, DoP 64 and 128\u003c\/li\u003e\n  \u003cli\u003eOptical: PCM to 192kHz\/24-bit, DoP 64\u003c\/li\u003e\n  \u003cli\u003eExtension port (USB Type A): S\/PDIF data and 5V power for a NuPrime BTR-HD or LP10 NuPrime Edition, PCM to 192kHz\/24-bit\u003c\/li\u003e\n  \u003cli\u003eRCA analog input: up to 1Vrms\u003c\/li\u003e\n  \u003cli\u003eXLR and RCA outputs, optical output, and front-panel 6.3mm headphone output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For and System Pairing\u003c\/h2\u003e\n\u003cp\u003eThe DAC-9X suits a listener who wants one box to handle digital sources, volume and headphones. Run its XLR outputs straight into a power amplifier such as the \u003ca href=\"\/products\/nuprime-sta-9x-stereo-power-amplifier\" title=\"NuPrime STA-9X\"\u003eNuPrime STA-9X\u003c\/a\u003e for a two-box system, and add the \u003ca href=\"\/products\/nuprime-stream-9x-network-streamer\" title=\"NuPrime Stream 9X\"\u003eNuPrime Stream 9X\u003c\/a\u003e through I2S for network streaming. Browse the full \u003ca href=\"\/collections\/nuprime\" title=\"NuPrime collection at HiFi Boutique\"\u003eNuPrime collection\u003c\/a\u003e to build out your system.\u003c\/p\u003e\n\n\u003ch2\u003eDAC-9X Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eDAC-9X\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDAC-9X\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDAC, preamplifier and headphone amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDAC Chips\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDual ESS ES9028Q2M\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eUSB Input\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eType B 2.0 Hi-Speed; Windows: 384kHz\/24-bit, native DSD256; Mac\/Linux: 384kHz\/24-bit, DoP DSD128\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eI2S\/DSD Inputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2 x; PCM 44.1–384kHz\/32-bit, DSD64–DSD256\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCoaxial Input\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePCM 44.1–384kHz\/24-bit, DoP 64 and 128\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOptical Input\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePCM 44.1–192kHz\/24-bit, DoP 64\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eExtension Input\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePCM 44.1–192kHz\/24-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAnalog Input\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eRCA, up to 1Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHeadphone Output\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e6.3mm TRS; 1700mW @ 32Ω (\u0026lt;0.01% THD), 135mW @ 600Ω (\u0026lt;0.005% THD)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eLine Outputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eRCA 4Vrms; XLR 8Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDigital Output\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOptical, PCM to 192kHz, DoP DSD64\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e20Hz – 20kHz, ±0.3dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSNR\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026gt;110dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTHD+N\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026lt;0.0005%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAC Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e90–130VAC or 210–250VAC, voltage select switch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFuse\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSlow-blow, 2.5A, 250V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBlack or silver\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e55 x 235 x 281 mm (2.2 x 9.3 x 11.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNet Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e3 kg (6.6 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e4 kg (8.8 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eNuPrime DAC-9X FAQ\u003c\/h2\u003e\n\u003ch3\u003eWhich DAC chip does the DAC-9X use?\u003c\/h3\u003e\n\u003cp\u003eTwo ESS ES9028Q2M 32-bit DACs, one for each channel.\u003c\/p\u003e\n\n\u003ch3\u003eCan the DAC-9X be used as a preamplifier?\u003c\/h3\u003e\n\u003cp\u003eYes. Its analog shunt-to-ground volume control and 8Vrms XLR output let it drive a power amplifier directly.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the DAC-9X decode MQA?\u003c\/h3\u003e\n\u003cp\u003eYes. It decodes and renders MQA files and streams, with a front LED that shows MQA status.\u003c\/p\u003e\n\n\u003ch3\u003eHow powerful is the headphone output?\u003c\/h3\u003e\n\u003cp\u003eThe 6.3mm output delivers 1700mW into 32 ohms and 135mW into 600 ohms.\u003c\/p\u003e\n\n\u003ch3\u003eWill the I2S inputs work with any source?\u003c\/h3\u003e\n\u003cp\u003eNuPrime designs its I2S connections for use with other NuPrime products, such as the Stream 9X, and notes that they may not work with other devices.\u003c\/p\u003e\n\n\u003ch3\u003eCan I add wireless streaming?\u003c\/h3\u003e\n\u003cp\u003eYes. The extension port connects an optional NuPrime BTR-HD Bluetooth receiver or LP10 NuPrime Edition streamer with one USB cable.\u003c\/p\u003e\n\n\u003ch3\u003eHow big and heavy is the DAC-9X?\u003c\/h3\u003e\n\u003cp\u003eIt measures 55 x 235 x 281 mm (H x W x D) and weighs 3 kg.\u003c\/p\u003e\n\n\u003ch3\u003eWhat warranty does the NuPrime DAC-9X have?\u003c\/h3\u003e\n\u003cp\u003eNuPrime lists a 1-year manufacturer warranty for the DAC-9X.\u003c\/p\u003e\n\n\u003ch3\u003eDoes HiFi Boutique charge shipping or sales tax on the DAC-9X?\u003c\/h3\u003e\n\u003cp\u003eNo. The DAC-9X ships free anywhere in the USA, and sales tax is already included, so the price you see is what you pay.\u003c\/p\u003e\n\n\n\u003ch2\u003eShipping and Pricing at HiFi Boutique\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFree shipping anywhere in the USA, with sales tax included in the price.\u003c\/strong\u003e No extra fees at checkout.\u003c\/p\u003e","brand":"NuPrime","offers":[{"title":"Black","offer_id":50852193468613,"sku":"NP-DAC-9X-BLK","price":1199.0,"currency_code":"USD","in_stock":false},{"title":"Silver","offer_id":50852193501381,"sku":"NP-DAC-9X-SVR","price":1199.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/files\/DAC-9X_4.jpg?v=1793472164"},{"product_id":"nuprime-pra-9x-balanced-preamplifier","title":"NuPrime PRA-9X Balanced Preamplifier with MM Phono \u0026 Headphone Output","description":"\u003cp\u003e\u003cstrong\u003eThe NuPrime PRA-9X is a fully balanced analog preamplifier with a THD+N of 0.0004%, a built-in MM phono stage, and a 6.3mm headphone output.\u003c\/strong\u003e It has one phono, two RCA and one XLR input, XLR and RCA outputs, and a digitally controlled analog volume in 0.5dB steps. At HiFi Boutique it ships free anywhere in the USA, with sales tax already included.\u003c\/p\u003e\n\n\u003ch2\u003eNuPrime PRA-9X at a Glance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e fully balanced, with audio relay input and output switching\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLine stage:\u003c\/strong\u003e four NuPrime ultra-low distortion amplifier modules with MUSES8820 op-amps, THD+N 0.0004% @ 7.5Vrms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSNR:\u003c\/strong\u003e above 115dB @ 7.5Vrms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhono stage:\u003c\/strong\u003e MM, two-stage RIAA with MUSES8820, 32k\/47k\/100k ohm and 100\/220\/320pF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e 1 x MM phono, 2 x stereo RCA, 1 x stereo XLR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e 1 x stereo XLR, 1 x stereo RCA, 1 x 6.3mm headphone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeadphone power:\u003c\/strong\u003e 560mW @ 32Ω, 110mW @ 600Ω\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e 0.5dB steps with memory, using analog switches and precision chip resistors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e black or silver\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the PRA-9X\u003c\/h2\u003e\n\u003cp\u003eThe PRA-9X is a fully balanced preamplifier for an analog system or a system with separate DAC and power amplifiers. The line outputs use four of NuPrime's ultra-low distortion amplifier modules, built around MUSES8820 op-amps, for THD+N of 0.0004%. Inputs and outputs switch through audio relays.\u003c\/p\u003e\n\u003cp\u003eIts volume control is digitally controlled but analog in operation. Each 0.5dB step engages a dedicated analog switch and precision chip resistors, rather than attenuating the signal digitally.\u003c\/p\u003e\n\n\n\u003ch3\u003ePhono Stage\u003c\/h3\u003e\n\u003cp\u003eThe phono input is a two-stage RIAA amplifier using NJR MUSES8820 op-amps. Input resistance can be set to 32k, 47k or 100k ohms, and capacitance to 100, 220 or 320pF, to match moving magnet cartridges. Gain from the MM input to the line output is 50dB at 1kHz.\u003c\/p\u003e\n\n\u003ch3\u003eHeadphone Output\u003c\/h3\u003e\n\u003cp\u003eThe front 6.3mm output delivers 560mW into 32 ohms and 110mW into 600 ohms, with THD+N of 0.004% and 0.0015% respectively.\u003c\/p\u003e\n\n\u003ch2\u003eWho It's For and System Pairing\u003c\/h2\u003e\n\u003cp\u003eThe PRA-9X is for listeners building a separates system around a turntable or analog sources. Pair it with the \u003ca href=\"\/products\/nuprime-sta-9x-stereo-power-amplifier\" title=\"NuPrime STA-9X\"\u003eNuPrime STA-9X\u003c\/a\u003e power amplifier over balanced XLR, and feed it a DAC such as the \u003ca href=\"\/products\/nuprime-dac-9x-dac-preamp-headphone-amp\" title=\"NuPrime DAC-9X\"\u003eNuPrime DAC-9X\u003c\/a\u003e for digital sources. Browse the full \u003ca href=\"\/collections\/nuprime\" title=\"NuPrime collection at HiFi Boutique\"\u003eNuPrime collection\u003c\/a\u003e to build out your system.\u003c\/p\u003e\n\n\u003ch2\u003ePRA-9X Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003ePRA-9X\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePRA-9X\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBalanced preamplifier with MM phono and headphone output\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eInputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 x MM phono; 2 x stereo RCA; 1 x stereo XLR\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOutputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 x stereo RCA; 1 x stereo XLR; 1 x 6.3mm headphone\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePhono Loading\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e32kΩ \/ 47kΩ \/ 100kΩ; 100pF \/ 220pF \/ 320pF\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMM Input Sensitivity\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e4.0mV @ 1kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePhono Gain\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e50dB @ 1kHz (MM in to line out, max volume)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eLine Input Resistance\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e20kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOutput Resistance\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e10Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTHD+N (Line)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0.0004% @ 7.5Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eS\/N Ratio (Line)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026gt;115dB @ 7.5Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0Hz – 50kHz (0.2dB), 200kHz (-3dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eLine Gain\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e17dB @ 1kHz (max volume)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHeadphone Output\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e560mW @ 32Ω; 110mW @ 600Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHeadphone THD+N\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0.004% @ 32Ω \/ 480mW; 0.0015% @ 600Ω \/ 100mW\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDynamic Range\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026gt;115dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAC Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e90–130VAC or 210–250VAC, voltage select switch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFuse\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSlow-blow, T1A, 250VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBlack or silver\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e55 x 235 x 281 mm (2.2 x 9.3 x 11.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNet Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e3 kg (6.6 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e4 kg (8.8 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eNuPrime PRA-9X FAQ\u003c\/h2\u003e\n\u003ch3\u003eIs the PRA-9X fully balanced?\u003c\/h3\u003e\n\u003cp\u003eYes. NuPrime describes it as a fully balanced preamplifier, with XLR input and output as well as RCA.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the PRA-9X have a phono stage?\u003c\/h3\u003e\n\u003cp\u003eYes, for moving magnet cartridges, with selectable 32k, 47k or 100k ohm loading and 100, 220 or 320pF capacitance.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the PRA-9X have a DAC?\u003c\/h3\u003e\n\u003cp\u003eNo. It is an analog preamplifier. Connect a DAC to its RCA or XLR inputs for digital sources.\u003c\/p\u003e\n\n\u003ch3\u003eHow powerful is the headphone output?\u003c\/h3\u003e\n\u003cp\u003eIt delivers 560mW into 32 ohms and 110mW into 600 ohms.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the volume control work?\u003c\/h3\u003e\n\u003cp\u003eIt is digitally controlled in 0.5dB steps with memory, but each step switches precision resistors through analog switches.\u003c\/p\u003e\n\n\u003ch3\u003eWhat warranty does the NuPrime PRA-9X have?\u003c\/h3\u003e\n\u003cp\u003eNuPrime lists a 1-year manufacturer warranty for the PRA-9X.\u003c\/p\u003e\n\n\u003ch3\u003eDoes HiFi Boutique charge shipping or sales tax on the PRA-9X?\u003c\/h3\u003e\n\u003cp\u003eNo. The PRA-9X ships free anywhere in the USA, and sales tax is already included, so the price you see is what you pay.\u003c\/p\u003e\n\n\n\u003ch2\u003eShipping and Pricing at HiFi Boutique\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFree shipping anywhere in the USA, with sales tax included in the price.\u003c\/strong\u003e No extra fees at checkout.\u003c\/p\u003e","brand":"NuPrime","offers":[{"title":"Black","offer_id":50852193697989,"sku":"NP-PRA-9X-BLK","price":1199.0,"currency_code":"USD","in_stock":false},{"title":"Silver","offer_id":50852193730757,"sku":"NP-PRA-9X-SVR","price":1199.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/files\/PRA-9_5-1200x628px.jpg?v=1793472167"},{"product_id":"nuprime-evolution-dac-2-dac-preamp","title":"NuPrime Evolution DAC-2 Reference DAC \u0026 Preamplifier","description":"\u003cp\u003e\u003cstrong\u003eThe NuPrime Evolution DAC-2 is a reference DAC and preamplifier with dual ESS9038Q2M converters, nine digital inputs, two analog inputs, and native MQA decoding.\u003c\/strong\u003e Its NuPrime PSRC chip converts sample rates from PCM 44.1kHz up to 768kHz and from DSD64 to DSD512, including PCM to and from DSD, and its power supply uses C-core transformers and about 60,000µF of capacitance. At HiFi Boutique it ships free anywhere in the USA, with sales tax already included.\u003c\/p\u003e\n\n\u003ch2\u003eNuPrime Evolution DAC-2 at a Glance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDAC:\u003c\/strong\u003e dual ESS Technology ES9038Q2M 32-bit DACs, one per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDigital inputs:\u003c\/strong\u003e USB, 2 x coaxial, 2 x optical, AES\/EBU, 2 x I2S\/DSD, extension port\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalog inputs:\u003c\/strong\u003e 2 x RCA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e XLR balanced (8Vrms) and RCA (4Vrms), variable or fixed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFormats:\u003c\/strong\u003e PCM to 768kHz and DSD512 over USB, native MQA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSample rate conversion:\u003c\/strong\u003e NuPrime PSRC, PCM 44.1–768kHz and DSD64–DSD512\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePreamp:\u003c\/strong\u003e MUSES8820 op-amps and MUSES72320 resistor-ladder volume\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e THD+N below 0.0005%, SNR above 110dB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e black or silver anodized aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the Evolution DAC-2\u003c\/h2\u003e\n\u003cp\u003eThe Evolution DAC-2 is the converter and control center of the Evolution Series. Its power supply was redesigned with C-core transformers, which have less stray flux than ring transformers, inside stainless steel enclosures to shield the rest of the circuit. A capacitor bank of about 60,000µF feeds the analog and digital stages.\u003c\/p\u003e\n\u003cp\u003eThe preamp uses Nisshinbo MUSES8820 op-amps with a MUSES72320 two-channel electronic volume, which works through a resistance ladder for linear volume control. Output can be variable or fixed, and each analog output can be set to left, right or summed.\u003c\/p\u003e\n\n\n\u003ch3\u003eInputs and Formats\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUSB Type B: PCM 44.1–768kHz and DSD512 with MQA on Windows; PCM to 768kHz\/24-bit and DoP256 on Mac\u003c\/li\u003e\n  \u003cli\u003eCoaxial 1: PCM to 384kHz, DoP 64 and 128, MQA\u003c\/li\u003e\n  \u003cli\u003eCoaxial 2 and optical 1 and 2: PCM to 192kHz, DoP 64, MQA\u003c\/li\u003e\n  \u003cli\u003eAES\/EBU: PCM to 384kHz, DoP 128, MQA\u003c\/li\u003e\n  \u003cli\u003eI2S\/DSD 1 and 2: PCM to 384kHz and DSD256, for NuPrime sources\u003c\/li\u003e\n  \u003cli\u003eExtension port: PCM to 192kHz\/24-bit\u003c\/li\u003e\n  \u003cli\u003eAnalog AN1 and AN2: RCA, 47kΩ\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOther Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndividually adjustable volume on each input\u003c\/li\u003e\n  \u003cli\u003eCustom non-linear volume curve\u003c\/li\u003e\n  \u003cli\u003eDisplay brightness adjustment\u003c\/li\u003e\n  \u003cli\u003eFirmware upgradable by USB\u003c\/li\u003e\n  \u003cli\u003eNuPrime vibration-free isolation feet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For and System Pairing\u003c\/h2\u003e\n\u003cp\u003eThe Evolution DAC-2 is for a high-end system that needs many digital sources and a quality preamp in one chassis. Run its XLR outputs to the \u003ca href=\"\/products\/nuprime-evolution-sta-se-stereo-amplifier\" title=\"NuPrime Evolution STA-SE\"\u003eNuPrime Evolution STA-SE\u003c\/a\u003e or a pair of \u003ca href=\"\/products\/nuprime-evolution-two-se-mono-amplifier\" title=\"Evolution Two-SE\"\u003eEvolution Two-SE\u003c\/a\u003e mono amplifiers. The \u003ca href=\"\/products\/nuprime-evolution-stream-music-server\" title=\"NuPrime Evolution Stream\"\u003eNuPrime Evolution Stream\u003c\/a\u003e completes the Evolution stack. Browse the full \u003ca href=\"\/collections\/nuprime\" title=\"NuPrime collection at HiFi Boutique\"\u003eNuPrime collection\u003c\/a\u003e to build out your system.\u003c\/p\u003e\n\n\u003ch2\u003eEvolution DAC-2 Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eEvolution DAC-2\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eEvolution DAC-2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDAC and preamplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDAC Chips\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDual ESS ES9038Q2M\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eUSB\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWindows: PCM 44.1–768kHz, DSD512, MQA; Mac: PCM 44.1–768kHz\/24-bit, DoP256\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCoaxial 1\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePCM 44.1–384kHz, DoP 64\/128, MQA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCoaxial 2\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePCM 44.1–192kHz, DoP 64, MQA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOptical 1 \u0026amp; 2\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePCM 44.1–192kHz, DoP 64, MQA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAES\/EBU\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePCM 44.1–384kHz, DoP 128, MQA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eI2S\/DSD 1 \u0026amp; 2\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePCM 44.1–384kHz, DSD256\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eExtension\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePCM 44.1–192kHz\/24-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAnalog Inputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2 x RCA, 47kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAnalog Outputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eRCA 4Vrms; XLR 8Vrms; output impedance \u0026lt;50Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e20Hz – 20kHz, ±0.3dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSNR\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026gt;110dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTHD+N\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026lt;0.0005%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e13.5W (0.9W standby)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAC Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e115V or 230V, selector on the bottom\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBlack or silver\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e57 x 430 x 375 mm (2.2 x 16.9 x 14.8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNet Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e5.2 kg (11.5 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e7.5 kg (16.5 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eNuPrime Evolution DAC-2 FAQ\u003c\/h2\u003e\n\u003ch3\u003eWhich DAC chip does the Evolution DAC-2 use?\u003c\/h3\u003e\n\u003cp\u003eTwo ESS ES9038Q2M 32-bit DACs, decoding the left and right channels independently.\u003c\/p\u003e\n\n\u003ch3\u003eCan the Evolution DAC-2 be used as a preamplifier?\u003c\/h3\u003e\n\u003cp\u003eYes. Its outputs can run in variable mode with a MUSES72320 resistor-ladder volume control, or in fixed mode for use with a separate preamp.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the Evolution DAC-2 decode MQA?\u003c\/h3\u003e\n\u003cp\u003eYes, natively, on USB, coaxial, optical and AES\/EBU inputs.\u003c\/p\u003e\n\n\u003ch3\u003eWhat resolution does it support?\u003c\/h3\u003e\n\u003cp\u003eUSB on Windows plays PCM up to 768kHz and DSD512. The PSRC chip can also convert any input to PCM 44.1–768kHz or DSD64–DSD512.\u003c\/p\u003e\n\n\u003ch3\u003eHow many inputs does it have?\u003c\/h3\u003e\n\u003cp\u003eNine digital inputs and two analog RCA inputs.\u003c\/p\u003e\n\n\u003ch3\u003eWhat warranty does the NuPrime Evolution DAC-2 have?\u003c\/h3\u003e\n\u003cp\u003eNuPrime lists a 3-year manufacturer warranty for the Evolution DAC-2.\u003c\/p\u003e\n\n\u003ch3\u003eDoes HiFi Boutique charge shipping or sales tax on the Evolution DAC-2?\u003c\/h3\u003e\n\u003cp\u003eNo. The Evolution DAC-2 ships free anywhere in the USA, and sales tax is already included, so the price you see is what you pay.\u003c\/p\u003e\n\n\n\u003ch2\u003eShipping and Pricing at HiFi Boutique\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFree shipping anywhere in the USA, with sales tax included in the price.\u003c\/strong\u003e No extra fees at checkout.\u003c\/p\u003e","brand":"NuPrime","offers":[{"title":"Black","offer_id":50852195139781,"sku":"NP-EVODAC2-BLACK","price":3495.0,"currency_code":"USD","in_stock":false},{"title":"Silver","offer_id":50852195172549,"sku":"NP-EVODAC2-SILVER","price":3495.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/files\/EvoDAC-black_4.jpg?v=1793472186"},{"product_id":"nuprime-amg-pra-preamplifier","title":"NuPrime AMG PRA Balanced Analog Preamplifier","description":"\u003cp\u003e\u003cstrong\u003eThe NuPrime AMG PRA is a fully balanced analog preamplifier with 1MΩ input impedance, a single-ended Class A JFET input stage and a MUSES72320 volume control.\u003c\/strong\u003e NuPrime designed it to be transparent with a distinctive character of its own: a user-selectable four-stage low frequency and harmonic gain control adds bass presence for smaller speakers. At HiFi Boutique it ships free anywhere in the USA, with sales tax already included.\u003c\/p\u003e\n\n\u003ch2\u003eNuPrime AMG PRA at a Glance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput impedance:\u003c\/strong\u003e 1MΩ on balanced and line inputs, 10Hz to 200kHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput stage:\u003c\/strong\u003e ultra-wide-bandwidth low-noise JFET, single-ended Class A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e MUSES72320 highly linear volume control\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOp-amps:\u003c\/strong\u003e MUSES8920\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e fully balanced inputs and outputs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControls:\u003c\/strong\u003e four-stage loudness, high and low gain, phase invert\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency response:\u003c\/strong\u003e 10Hz to 200kHz (0 to -0.1dB)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e grey\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the AMG PRA\u003c\/h2\u003e\n\u003cp\u003eThe AMG PRA isolates its audio signal from the power circuit. A star-topology power and ground board sits apart from the preamplifier board, separated by an isolation layer. NuPrime describes the result as a transparent sound that is natural and not over-etched.\u003c\/p\u003e\n\u003cp\u003eThe JFET input and MUSES8920 op-amps produce harmonics similar to tube amplifiers, which NuPrime describes as warm, airy and velvety. Rather than a simple bass boost, the loudness control uses a non-feedback low-frequency harmonic modulation circuit to extend bass with a natural roll-off and minimal phase distortion.\u003c\/p\u003e\n\u003cp\u003eThe AMG front panel is milled from 15mm hardened aerospace aluminum alloy on a four-axis CNC machine with a diamond cutter, in a 48-step process, with a 3D floating logo and diamond-cut edges.\u003c\/p\u003e\n\n\n\u003ch3\u003eFront Panel Controls\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLeft toggle: high or low output gain\u003c\/li\u003e\n  \u003cli\u003eRight toggle: normal or inverted phase\u003c\/li\u003e\n  \u003cli\u003eLeft knob: loudness compensation, off or levels 1 to 3\u003c\/li\u003e\n  \u003cli\u003eRight knob: press for input selection, hold 3 seconds for standby, turn for volume\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For and System Pairing\u003c\/h2\u003e\n\u003cp\u003eThe AMG PRA is for a system with analog sources and a separate power amplifier. Its gain and phase settings help it match different amplifiers. Pair it with the \u003ca href=\"\/products\/nuprime-amg-sta-se-stereo-amplifier\" title=\"NuPrime AMG STA-SE\"\u003eNuPrime AMG STA-SE\u003c\/a\u003e or a pair of \u003ca href=\"\/products\/nuprime-amg-one-mono-amplifier\" title=\"AMG One\"\u003eAMG One\u003c\/a\u003e mono amplifiers in the same chassis. Browse the full \u003ca href=\"\/collections\/nuprime\" title=\"NuPrime collection at HiFi Boutique\"\u003eNuPrime collection\u003c\/a\u003e to build out your system.\u003c\/p\u003e\n\n\u003ch2\u003eAMG PRA Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eAMG PRA\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAMG PRA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFully balanced analog preamplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eInput Impedance\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1MΩ, 10Hz – 200kHz (balanced and line)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eRated Input Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e8V balanced; 4V line\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eRated Output Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2V line; 4V balanced (@ 100Ω)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e10Hz – 200kHz (0 to -0.1dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTHD\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0.008%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eS\/N\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e95dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eGain\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e10.10dB (high); 6.44dB (low)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eLoudness Compensation\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2.2dB (125Hz); 4.5dB (100Hz); 5.3dB (75Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eGrey\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e55 x 235 x 300 mm (2.2 x 9.3 x 11.8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNet Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e3.5 kg (7.7 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e5 kg (11 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eNuPrime AMG PRA FAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat does the loudness control do?\u003c\/h3\u003e\n\u003cp\u003eIt adds bass presence in three stages (up to 5.3dB at 75Hz) with a natural roll-off. NuPrime notes it adds warmth and impact rather than volume.\u003c\/p\u003e\n\n\u003ch3\u003eIs the AMG PRA balanced?\u003c\/h3\u003e\n\u003cp\u003eYes. Its inputs and outputs are fully balanced, with line outputs as well.\u003c\/p\u003e\n\n\u003ch3\u003eWhy does 1MΩ input impedance matter?\u003c\/h3\u003e\n\u003cp\u003eA very high input impedance places almost no load on the source, so the source output is passed through with minimal interaction.\u003c\/p\u003e\n\n\u003ch3\u003eCan I invert phase?\u003c\/h3\u003e\n\u003cp\u003eYes, with the right-hand toggle switch on the front panel.\u003c\/p\u003e\n\n\u003ch3\u003eWhat warranty does the NuPrime AMG PRA have?\u003c\/h3\u003e\n\u003cp\u003eNuPrime lists a 2-year manufacturer warranty for the AMG PRA.\u003c\/p\u003e\n\n\u003ch3\u003eDoes HiFi Boutique charge shipping or sales tax on the AMG PRA?\u003c\/h3\u003e\n\u003cp\u003eNo. The AMG PRA ships free anywhere in the USA, and sales tax is already included, so the price you see is what you pay.\u003c\/p\u003e\n\n\n\u003ch2\u003eShipping and Pricing at HiFi Boutique\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFree shipping anywhere in the USA, with sales tax included in the price.\u003c\/strong\u003e No extra fees at checkout.\u003c\/p\u003e","brand":"NuPrime","offers":[{"title":"Default Title","offer_id":50852195598533,"sku":"NP-AMG-PRA","price":1799.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/files\/AMG_PRE_3.jpg?v=1793472194"},{"product_id":"nuprime-amg-hpa-headphone-amplifier","title":"NuPrime AMG HPA Balanced Headphone Amplifier \u0026 Preamp","description":"\u003cp\u003e\u003cstrong\u003eThe NuPrime AMG HPA is a fully balanced headphone amplifier with 1MΩ input impedance and a single-ended, non-negative-feedback Class A amplification module.\u003c\/strong\u003e NuPrime describes it as the first headphone amplifier with a 1MΩ input design, carried over from its flagship Evolution One amplifiers. It also works as a reference-level preamp through XLR and RCA outputs. At HiFi Boutique it ships free anywhere in the USA, with sales tax already included.\u003c\/p\u003e\n\n\u003ch2\u003eNuPrime AMG HPA at a Glance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e 1 x balanced XLR, 3 x stereo RCA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeadphone outputs:\u003c\/strong\u003e 6.3mm, 4.4mm balanced, 4-pin XLR balanced\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePreamp outputs:\u003c\/strong\u003e 1 x XLR, 1 x RCA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e balanced: 3,500mW @ 32Ω, 300mW @ 600Ω; 6.3mm: 2,000mW @ 32Ω, 150mW @ 600Ω\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e two MUSES72320, 100 balanced steps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower supply:\u003c\/strong\u003e custom R-core transformer, 26,000µF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e grey\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the AMG HPA\u003c\/h2\u003e\n\u003cp\u003eThe input stage uses an ultra-high-bandwidth, low-noise JFET for the 1MΩ input. Amplification is a single-ended, non-negative-feedback Class A module for wide bandwidth and rich second-order harmonics.\u003c\/p\u003e\n\u003cp\u003eInput, volume, amplification and output stages are independent for each side of the balanced signal. Two MUSES72320 chips give 100 balanced volume steps, which NuPrime calls the best volume control it has put into a product. The AMG front panel is milled from 15mm hardened aerospace aluminum alloy on a four-axis CNC machine with a diamond cutter, in a 48-step process, with a 3D floating logo and diamond-cut edges.\u003c\/p\u003e\n\n\n\u003ch2\u003eWho It's For and System Pairing\u003c\/h2\u003e\n\u003cp\u003eThe AMG HPA is for headphone listeners with demanding or sensitive headphones, from 8 ohms up to 600 ohms. Pair it with the \u003ca href=\"\/products\/nuprime-amg-dac-dac-preamp\" title=\"NuPrime AMG DAC\"\u003eNuPrime AMG DAC\u003c\/a\u003e as a source, and use its preamp outputs to feed a power amplifier such as the \u003ca href=\"\/products\/nuprime-amg-sta-se-stereo-amplifier\" title=\"NuPrime AMG STA-SE\"\u003eNuPrime AMG STA-SE\u003c\/a\u003e. Browse the full \u003ca href=\"\/collections\/nuprime\" title=\"NuPrime collection at HiFi Boutique\"\u003eNuPrime collection\u003c\/a\u003e to build out your system.\u003c\/p\u003e\n\n\u003ch2\u003eAMG HPA Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eAMG HPA\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAMG HPA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBalanced headphone amplifier and preamplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eInputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 x balanced XLR; 3 x stereo RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHeadphone Outputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e6.3mm; 4.4mm balanced; 4-pin XLR balanced\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eLine Outputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 x XLR; 1 x RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eInput Impedance\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1MΩ, 10Hz – 200kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHeadphone Power (6.3mm)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2,000mW @ 32Ω; 150mW @ 600Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHeadphone Power (balanced)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e3,500mW @ 32Ω; 300mW @ 600Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMinimum Headphone Impedance\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e8Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDynamic Range\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026gt;80dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTHD+N\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eS\/N\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026gt;100dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e20Hz – 200kHz (-3dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCrosstalk\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003emin. 80dB @ 1kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAC Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e90–130VAC \/ 210–250VAC, voltage select switch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eGrey\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e55 x 235 x 300 mm (2.2 x 9.3 x 11.8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNet Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e2.5 kg (5.5 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e5 kg (11 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eNuPrime AMG HPA FAQ\u003c\/h2\u003e\n\u003ch3\u003eWhich headphone outputs does the AMG HPA have?\u003c\/h3\u003e\n\u003cp\u003eA 6.3mm output, a 4.4mm balanced output and a 4-pin XLR balanced output.\u003c\/p\u003e\n\n\u003ch3\u003eHow much power does it deliver?\u003c\/h3\u003e\n\u003cp\u003eUp to 3,500mW into 32 ohms from the balanced outputs, and 300mW into 600 ohms. It drives headphones as low as 8 ohms.\u003c\/p\u003e\n\n\u003ch3\u003eCan the AMG HPA be used as a preamp?\u003c\/h3\u003e\n\u003cp\u003eYes. It has XLR and RCA line outputs and can be used as a reference-level preamp.\u003c\/p\u003e\n\n\u003ch3\u003eWhat inputs does it have?\u003c\/h3\u003e\n\u003cp\u003eOne balanced XLR input and three stereo RCA inputs.\u003c\/p\u003e\n\n\u003ch3\u003eWhat warranty does the NuPrime AMG HPA have?\u003c\/h3\u003e\n\u003cp\u003eNuPrime lists a 2-year manufacturer warranty for the AMG HPA.\u003c\/p\u003e\n\n\u003ch3\u003eDoes HiFi Boutique charge shipping or sales tax on the AMG HPA?\u003c\/h3\u003e\n\u003cp\u003eNo. The AMG HPA ships free anywhere in the USA, and sales tax is already included, so the price you see is what you pay.\u003c\/p\u003e\n\n\n\u003ch2\u003eShipping and Pricing at HiFi Boutique\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFree shipping anywhere in the USA, with sales tax included in the price.\u003c\/strong\u003e No extra fees at checkout.\u003c\/p\u003e","brand":"NuPrime","offers":[{"title":"Default Title","offer_id":50852196221125,"sku":"NP-AMG-HPA","price":1999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/files\/AMG_HPA_left.jpg?v=1793472211"},{"product_id":"nuprime-amg-dac-dac-preamp","title":"NuPrime AMG DAC Reference DAC \u0026 Preamplifier","description":"\u003cp\u003e\u003cstrong\u003eThe NuPrime AMG DAC is a reference DAC and preamplifier that pairs dual ESS9038Q2M converters with a discrete Class A output stage.\u003c\/strong\u003e It decodes up to PCM 384kHz and DSD256, takes five digital inputs including I2S\/DSD and one analog input, and drives XLR and RCA outputs through a MUSES72320 volume control. At HiFi Boutique it ships free anywhere in the USA, with sales tax already included.\u003c\/p\u003e\n\n\u003ch2\u003eNuPrime AMG DAC at a Glance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDAC:\u003c\/strong\u003e dual ESS Technology ES9038Q2M 32-bit, one per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFormats:\u003c\/strong\u003e PCM to 384kHz, DSD256\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDigital inputs:\u003c\/strong\u003e coaxial, optical, USB, extension port, I2S\/DSD over HDMI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalog input:\u003c\/strong\u003e 1 x stereo RCA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e XLR (4Vrms), RCA (2Vrms), trigger out\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput stage:\u003c\/strong\u003e all-discrete voltage and current amplification, no negative feedback\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eI\/V stage:\u003c\/strong\u003e MUSES8820\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e grey\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the AMG DAC\u003c\/h2\u003e\n\u003cp\u003eNuPrime treats the preamp stage as central to a DAC's sound. In the AMG DAC, voltage and current amplification are built from discrete components, and the current stage uses no negative feedback. NuPrime describes the sound as natural and relaxed, with an open sense of space.\u003c\/p\u003e\n\u003cp\u003eTwo ESS9038Q2M chips decode the channels independently for better separation and lower noise. Vishay MELF film resistors, MUSES8820 op-amps in the I\/V stage and low-noise JFETs at the input complete the circuit. The AMG front panel is milled from 15mm hardened aerospace aluminum alloy on a four-axis CNC machine with a diamond cutter, in a 48-step process, with a 3D floating logo and diamond-cut edges.\u003c\/p\u003e\n\n\n\u003ch3\u003eInputs and Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eC1 coaxial and O2 optical for CD players, TVs and other digital sources\u003c\/li\u003e\n  \u003cli\u003eU3 USB for computers and NAS devices, asynchronous, native DSD via ASIO and DoP\u003c\/li\u003e\n  \u003cli\u003eE4 extension port: a USB Type-A port carrying S\/PDIF and 5V power for NuPrime wireless receivers such as the BTR-HD or LP10\u003c\/li\u003e\n  \u003cli\u003eA5 stereo analog RCA input\u003c\/li\u003e\n  \u003cli\u003eHE I2S\/DSD input over HDMI cable, for NuPrime sources only\u003c\/li\u003e\n  \u003cli\u003eIndividually adjustable volume per input, with memory\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For and System Pairing\u003c\/h2\u003e\n\u003cp\u003eThe AMG DAC is for a compact high-end system that needs a DAC and preamp in one. Run its XLR outputs to the \u003ca href=\"\/products\/nuprime-amg-sta-se-stereo-amplifier\" title=\"NuPrime AMG STA-SE\"\u003eNuPrime AMG STA-SE\u003c\/a\u003e or a pair of \u003ca href=\"\/products\/nuprime-amg-one-mono-amplifier\" title=\"AMG One\"\u003eAMG One\u003c\/a\u003e amplifiers. Add the \u003ca href=\"\/products\/nuprime-lp10-nuprime-edition-streamer\" title=\"LP10 NuPrime Edition\"\u003eLP10 NuPrime Edition\u003c\/a\u003e at the extension port for wireless streaming. Browse the full \u003ca href=\"\/collections\/nuprime\" title=\"NuPrime collection at HiFi Boutique\"\u003eNuPrime collection\u003c\/a\u003e to build out your system.\u003c\/p\u003e\n\n\u003ch2\u003eAMG DAC Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left; padding:8px; border:1px solid #ddd;\"\u003eAMG DAC\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAMG DAC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDAC and preamplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDAC Chips\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDual ESS ES9038Q2M\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMaximum Resolution\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePCM 384kHz; DSD256\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDigital Inputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCoaxial; optical; USB; extension port; I2S\/DSD (HDMI)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAnalog Input\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 x stereo RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eOutputs\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 x XLR (4Vrms); 1 x RCA (2Vrms); trigger out\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eGain\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHigh\/low, x2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e20Hz – 20kHz ±0.3dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eS\/N\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026gt;110dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTHD+N\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u0026lt;0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAC Voltage\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e90–130VAC \/ 210–250VAC, voltage select switch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eGrey\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e55 x 235 x 300 mm (2.2 x 9.3 x 11.8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNet Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e4 kg (8.8 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eShipping Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e5.5 kg (12.1 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eNuPrime AMG DAC FAQ\u003c\/h2\u003e\n\u003ch3\u003eWhich DAC chip does the AMG DAC use?\u003c\/h3\u003e\n\u003cp\u003eTwo ESS ES9038Q2M 32-bit DACs, one per channel.\u003c\/p\u003e\n\n\u003ch3\u003eWhat resolution does it support?\u003c\/h3\u003e\n\u003cp\u003ePCM up to 384kHz and DSD256, with native DSD over USB by ASIO or DoP.\u003c\/p\u003e\n\n\u003ch3\u003eCan I add wireless streaming?\u003c\/h3\u003e\n\u003cp\u003eYes. The extension port powers and connects NuPrime wireless receivers such as the LP10 NuPrime Edition or BTR-HD with one USB cable.\u003c\/p\u003e\n\n\u003ch3\u003eCan the HDMI input connect to a TV or Blu-ray player?\u003c\/h3\u003e\n\u003cp\u003eNo. The HDMI connector carries I2S and DSD from NuPrime sources only. NuPrime advises against connecting set-top boxes or disc players to it.\u003c\/p\u003e\n\n\u003ch3\u003eWhat warranty does the NuPrime AMG DAC have?\u003c\/h3\u003e\n\u003cp\u003eNuPrime lists a 2-year manufacturer warranty for the AMG DAC.\u003c\/p\u003e\n\n\u003ch3\u003eDoes HiFi Boutique charge shipping or sales tax on the AMG DAC?\u003c\/h3\u003e\n\u003cp\u003eNo. The AMG DAC ships free anywhere in the USA, and sales tax is already included, so the price you see is what you pay.\u003c\/p\u003e\n\n\n\u003ch2\u003eShipping and Pricing at HiFi Boutique\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFree shipping anywhere in the USA, with sales tax included in the price.\u003c\/strong\u003e No extra fees at checkout.\u003c\/p\u003e","brand":"NuPrime","offers":[{"title":"Default Title","offer_id":50852196253893,"sku":"NP-AMG-DAC","price":1999.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/files\/AMG-DAC_5.jpg?v=1793472213"}],"url":"https:\/\/www.hifiboutique.us\/collections\/preamplifiers-phono-stages.oembed","provider":"HiFi Boutique","version":"1.0","type":"link"}