{"title":"CD Players \u0026 Transports","description":"\u003cp\u003eA CD player reads the disc and converts it to analog with its own DAC, so it connects straight to your amplifier. A CD transport only reads the disc and sends the digital signal to a separate DAC, which lets you choose the converter. This collection includes CD players from \u003ca href=\"\/collections\/unison-research\"\u003eUnison Research\u003c\/a\u003e and the \u003ca href=\"\/collections\/nuprime\"\u003eNuPrime\u003c\/a\u003e CDT-9 transport.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between a CD player and a CD transport?\u003c\/h3\u003e\n\u003cp\u003eA CD player has a built-in DAC and outputs analog audio. A CD transport outputs digital audio only and needs a separate DAC.\u003c\/p\u003e\n\u003ch3\u003eCan I use a CD transport with my streamer's DAC?\u003c\/h3\u003e\n\u003cp\u003eYes, if the DAC has a matching digital input, such as coaxial, optical or AES\/EBU.\u003c\/p\u003e\n\u003ch3\u003eAre CD players still worth buying?\u003c\/h3\u003e\n\u003cp\u003eIf you own a disc collection, a good player or transport lets you keep enjoying it without ripping every CD.\u003c\/p\u003e\n","products":[{"product_id":"unison-research-cd-due","title":"Unison Research CD Due","description":"\u003cp\u003eWith this product, Unison Research steps into digital audio.\u003c\/p\u003e\n\u003cp\u003eUnico CDDue is high level DAC with integrated CD reading system, is flexible and customizable in use. CDDue combines the Unison Research sound quality  and  the possibilities offered by digital systems. Via an external source or a computer allows playback of digital audio PCM and DSD in all formats and sampling rates currently available.\u003c\/p\u003e\n\u003cp\u003e A look at the back of the unit allows you to realize the number of inputs and outputs. Digital inputs available: USB, S \/ PDIF, AES \/ EBU and Toslink ™, what you don’t see is Bluetooth ™ receiver that allows playing music , from mobile devices, without cables.\u003c\/p\u003e\n\u003cp\u003eThe output stage, as in Unison Research tradition use valves: two balanced outputs and two unbalanced. CDDue use 4 ECC83 in an innovative totem pole configuration with balanced input, this particular circuit allows high immunity to power supply noise and brings together the “triode” sound and  drive capability of cathode follower.\u003c\/p\u003e\n\u003cp\u003eAesthetically it differs from past productions, CDDue has a new front also used in the Unico 150 and Unico 90, white LEDs and  white display\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Unico CDDue is  simple to use but feature-rich.\u003c\/p\u003e\n\u003cp\u003eThe new graphic display use white OLED technology for excellent visibility in all lighting conditions and from any angle, it has a resolution of 128 x 64. The Display function allows you to  turn off the display pushing a button and enjoy listening without illuminations. The display shows the most important information in large fonts, and features active in smaller fonts\u003c\/p\u003e\n\u003cp\u003eTo understand how the product is flexible lets begin from inputs available:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUSB\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe USB input of the CDDue  through latest generation D\/A converter  can manage signals up to 384kHz PCM and DSD until 11,2896MHz, practically all formats and sampling rates currently available.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBluetooth\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCDDue is equipped with a Bluetooth connection that allows listening to music from any smartphone. The use of this connection is quite simple, because the CDDue is seen from your smartphone as a headset device.\u003c\/p\u003e\n\u003cp\u003eEasy to use, how to connect a Bluetooth headset to the smartphone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital inputs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCoaxial S \/ PDIF, balanced AES \/ EBU and optical Toslink\u003c\/p\u003e\n\u003cp\u003eYou can connected to the CDDue external digital sources (satellite receivers, digital recorders, digital mixers, etc.) There are three digital inputs on the panel .These inputs accept up to 192kHz and 24 bit (96 kHz and 24 bit the optical input). Note that the coaxial inputs accept balanced and also transfer signals encoded DSD64 DoP.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCD\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe reading mechanics use audio unit with a sleek drawer \"slim\" can only read audio CDs. The mechanism is enclosed and shielded by a thick metal cover.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital outputs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCDDue  digital outputs include coaxial S \/ PDIF, balanced AES \/ EBU and optical Toslink. On all outputs we will find the digital signal of source in reproduction\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDAC board and features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CdDue is designed to separate the digital section from the analogue one, the DAC section contains 11 stabilized power supply to ensure a clean and distinct to each device on the board. The most sensitive power supply are obtained by putting more stabilizers in cascade: the first filter and stabilizes the power supply, the second, lower voltage stabilizes and removes any residual noise. All this deployment of power is needed to put the DAC in the best working conditions and allow maximum performance of the chip.\u003c\/p\u003e\n\u003cp\u003eThe current-voltage converters (AD8597 \/ AD8599) are \"ultralow distortion\" and \"ultralow  noise\" and use quality components: Wima capacitors and Vishay resistors.\u003c\/p\u003e\n\u003cp\u003eThe use of an FPGA allows faster response times in the management of the digital data ,allow specialized functionality and greater power than DSP processors. \u003c\/p\u003e\n\u003cp\u003eThe ESS Sabre DAC ES9018K2M with jitter eliminator, allows an exceptional signal to noise ratio of 128 dB and a low distortion 0.0003% the timing system is given by a quartz oscillator with high precision and low phase noise.\u003c\/p\u003e\n\u003cp\u003eIt is possible to select from three different types of digital filter:\u003c\/p\u003e\n\u003cp\u003eF1 filter high slope and linear phase\u003c\/p\u003e\n\u003cp\u003eF2 filter high slope and minimum phase\u003c\/p\u003e\n\u003cp\u003eF3 filter low slope and linear phase\u003c\/p\u003e\n\u003cp\u003eThe three filters have characteristics which favor certain characteristics of the sound (temporal coherence, phase coherence or impulse response) and this allows the user to select the digital filter that best suits the installation, registration and your tastes.\u003c\/p\u003e\n\u003cp\u003eYou can reverse the absolute phase of reproduction in function of your system.\u003c\/p\u003e\n\u003cp\u003eOne more functionality is the possibility to bypass tube section for have a  “ solid-state” sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves Output stage :\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe tube stage uses two stabilizers, one for the anodic supply and one for the filaments.\u003c\/p\u003e\n\u003cp\u003eThe path of the masses of signal and power are been design in a particular way, are combined in a stellar like connection in the center of the board, from this point start of the mass connection to DAC board in order to reduce noise and disturbances .\u003c\/p\u003e\n\u003cp\u003eWima capacitors are used for input of this stage and capacitors Mundorf for the output, two capacitors Wima are positioned a few centimeters from the valves for added noise filtering and  as reserve of immediate energy. The proximity of the capacitors avoids that the variations of currents on long path that may propagate noise or mutual interference between the channels.\u003c\/p\u003e\n\u003cp\u003eFor a DAC of such performance has been designed an innovative circuitry, the result of extensive research and a long aging in the listening room, it presents the sonic performance of the triode with an output impedance of a cathode follower stageThe converter stage provides a balanced output with high output voltage to maintain a high signal to noise ratio and low distortion\u003c\/p\u003e\n\u003cp\u003eThe tube stage uses a totem-pole circuit in which each of ECC83 triode is piloted by a phase of balanced signal coming from the DAC. With this device you can keep low distortion and high noise immunity.\u003c\/p\u003e\n\u003cp\u003eThe sizing was performed to keep the output impedance more symmetrical as possible in the rising edge and falling edge of the signal. The totem pole circuit is also used in the One and 150 in the Only 90 of the same line of CDDue\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDigital Inputs\u003cbr\u003e 1 x USB\u003cbr\u003e Standard: USB 2.0 Audio Class\u003cbr\u003e frequencies: 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384, DSD64, DSD128, DSD256 Ready\u003cbr\u003e Resolution: 16 to 32 bits\u003cbr\u003e 1 x S\/PDIF\u003cbr\u003e Sensitivity: 0.5Vpp on 75 Ohms\u003cbr\u003e Sampling frequencies: 44.1, 48, 88.2, 96, 176.4, 192\u003cbr\u003e DSD64 (DoP)\u003cbr\u003e Resolution: 16 to 24 bits\u003cbr\u003e 1x AES\/EBU\u003cbr\u003e Sensitivity: 2Vpp on 110 Ohms\u003cbr\u003e Sampling frequencies: 44.1, 48, 88.2, 96, 176.4, 192\u003cbr\u003e DSD64 (DoP)\u003cbr\u003e Resolution: 16 to 24 bits\u003cbr\u003e 1x Toslink™\u003cbr\u003e Sampling frequencies: 44.1, 48, 88.2, 96 (176.4 and DSD64-DoP with high efficiency transmitters)\u003cbr\u003e Resolution: 16 to 24 bits\u003cbr\u003e 1 x Bluetooth™ Receiver\u003cbr\u003e Standard: BT 3.0\u003cbr\u003e Profiles: A2DP, SSP (HID supported with Android smartphones through SPP)\u003cbr\u003e Sampling frequencies: 44.1kHz, 48kHz\u003cbr\u003e Resolution: 16 bits\u003cbr\u003e Digital Output\u003cbr\u003e 1x  S\/PDIF\u003cbr\u003e Output voltage: 0.5Vpp on 75 Ohms\u003cbr\u003e 1x  AES\/EBU\u003cbr\u003e Output voltage: 2Vpp on 110 Ohms\u003cbr\u003e 1x Toslink™\u003cbr\u003e Transport\u003cbr\u003e     8829CD-KHM DVD-Loader , Only audio CD\u003cbr\u003e \u003cbr\u003e Display\u003cbr\u003e     128 X 64 White OLED graphic display , (can be turned off)\u003cbr\u003e Digital to Analogue Stage\u003cbr\u003e DAC:     \u003cbr\u003e ESS Sabre ES9018K2M with jitter eliminator\u003cbr\u003e SNR: 128dB (0dBFS, 1kHz, 192kHz, “A”\u003cbr\u003e weighted)\u003cbr\u003e THD+N: 0.0003% (0dBFS, 1kHZ, 20Hz-20kHZ)\u003cbr\u003e Timing: low phase noise, high precision crystal\u003cbr\u003e oscillators\u003cbr\u003e IV converter:\u003cbr\u003e AD8597\/AD8599 ultralow distortion, ultralow noise, use high-quality components like wima capacitor and wishay resistor\u003cbr\u003e Output Audio Stage\u003cbr\u003e  Number of channels: 2\u003cbr\u003e     Output stage:     Double Triode, pure class A differential Totem-pole\u003cbr\u003e Valve complement:   4 x 12AX7\/ECC83\u003cbr\u003e Output audio connectors:     \u003cbr\u003e 1 x RCA stereo\u003cbr\u003e 1 x XLR stereo\u003cbr\u003e     Optional buffer: AD8597\/AD8599 output buffer can be activated by remote control normally bypassed by relay\u003cbr\u003e General Specification\u003cbr\u003e     Remote control:\u003cbr\u003e         1 x Infrared  in wood and metal\u003cbr\u003e     Disc Formats:    \u003cbr\u003e         CD Audio\u003cbr\u003e Weights \u0026amp; Dimensions\u003cbr\u003e Power consumption:    100W max\u003cbr\u003e Dimension:        45cm x 38cm x 13cm\u003cbr\u003e Net weight:        10Kg\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Unison Research","offers":[{"title":"Silver","offer_id":41659657814213,"sku":"CD Due Silver","price":4499.0,"currency_code":"USD","in_stock":false},{"title":"Black (Special Order)","offer_id":41659657846981,"sku":"CD Due Black","price":4699.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/products\/CD_DUE_SILVERfront.jpg?v=1661439344"},{"product_id":"unison-research-cd-uno","title":"Unison Research CD Uno","description":"\u003cp\u003eAfter introducing the Unico CDDue last year, Unison Research is now confirming its presence in the world of digital audio with the new CDUno.\u003c\/p\u003e\n\u003cp\u003eThe Unico CDUno is a high-specification DAC with integrated CD mechanism that is flexible and customizable. The CDUno combines Unison Research’s high-end sound quality with the broad playback possibilities offered by today’s digital audio solutions. The CDUno will allow you to play back all the music formats and sampling rates currently available on the market.\u003c\/p\u003e\n\u003cp\u003eThe UnicoCDUno boasts a wide variety of inputs and outputs. On the back-panel there are inputs for USB and Toslink ™ cables, and built inside the housing is a Bluetooth™ receiver that allows for wireless streaming from compatible devices.\u003c\/p\u003e\n\u003cp\u003eThe audio stage uses one 12AU7\/\/ECC82 double triode, operating in pure class A, followed by a solid state discrete buffer still operating in class A for a low impedance output and ideal audio behavior.\u003c\/p\u003e\n\u003cp\u003eAesthetically the CDUno, like the CDDue, differs from existing Unico products with its new three-fold faceplate, white LEDs and white display. This same aesthetic will pass over to the new Unico 90 and Unico 150 amplifiers, which are designed to be perfect matches for the CDUno and CDDue.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe UnicoCDUno is a simple to use but feature-rich player.\u003c\/p\u003e\n\u003cp\u003eThe new 128 x 64 resolution graphic display uses white OLED technology for excellent visibility in all lighting conditions and from any angle. The “Display” function on the remote control allows you to turn off the display so you can enjoy listening without any illumination. The display shows the most important information in large fonts, and additional information in smaller fonts\u003c\/p\u003e\n\u003cp\u003eThe flexibility of the CDUno is best expressed by discussing each input as well as the overall design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUSB\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe USB input of the CDUno uses a latest-generation D\/A converter to manage signals up to 384kHz PCM and 11,2896MHz DSD, which effectively covers you for almost every format and sampling rate currently available.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBluetooth\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe small screen on the back panel of the CDUno masks the built-in aptX Bluetooth aerial that allows for music playback from compatible smartphones, tablets and computers. Set-up is quick and easy with any compatible device.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital inputs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCoaxial S \/ PDIF, balanced AES \/ EBU and optical Toslink\u003c\/p\u003e\n\u003cp\u003eYou can connect the CDUno external digital sources such as satellite receivers, digital recorders, digital mixers, etc.) There are three digital inputs on the panel .These inputs accept up to 192kHz and 24 bit (96 kHz and 24 bit via the optical input). Note that the coaxial inputs accepts balanced and also transfer signals encoded DSD64 DoP.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCD\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe reading mechanism is a sleek drawer \"slim\" design and can only read audio CDs. The mechanism is enclosed and shielded by a thick metal cover. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital outputs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CDUno can even be connected to another external DAC via the coaxial S\/PDIF output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDAC board and features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CDUno has been designed to separate the digital section from the analogue one.\u003c\/p\u003e\n\u003cp\u003eThe DAC section contains 8 stabilized power supply rails to ensure a clean and distinct delivery to each device on the board. Additional stabilizers are employed to ensure optimal sensitivity from the power supply; the first stabilizer acts as a filter, and the second removes any residual noise. All this has been done to ensure the DAC can operate in the best conditions possible.\u003c\/p\u003e\n\u003cp\u003eThe current-voltage converters NE5532AD are \"very-low distortion\" and use quality components including Wima capacitors and Vishay resistors.\u003c\/p\u003e\n\u003cp\u003eThe use of an FPGA allows for faster response times in the management of the digital data, as well as specialized functionality and greater power when compared to DSP processors. \u003c\/p\u003e\n\u003cp\u003eThe ESS Sabre DAC ES9018K2M with jitter eliminator offers an exceptional signal-to-noise ratio of 125 dB and a low distortion 0.0003%. The timing system is given by a quartz oscillator with high precision and low phase noise.\u003c\/p\u003e\n\u003cp\u003eIt is possible to select from three different types of digital filters:\u003c\/p\u003e\n\u003cp\u003eF1 filter high slope and linear phase\u003c\/p\u003e\n\u003cp\u003eF2 filter high slope and minimum phase\u003c\/p\u003e\n\u003cp\u003eF3 filter low slope and linear phase\u003c\/p\u003e\n\u003cp\u003eThe three filters have characteristics which favor certain types of sound (temporal coherence, phase coherence or impulse response) and this allows the user to select the digital filter that best suits the installation, registration and your tastes.\u003c\/p\u003e\n\u003cp\u003eYou can also reverse the absolute phase of reproduction in the CDUno menu.\u003c\/p\u003e\n\u003cp\u003eOne more function is the capacity to bypass tube section for have a  “ solid-state” sound\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eValves Output stage :\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe tube stage uses two stabilizers, one for the anodic supply and one for the filaments.\u003c\/p\u003e\n\u003cp\u003eThe path of the masses of signal and power have been designed in a particular way so they are combined in a “stellar-like” connection in the center of the board. From this point you see the mass connection to the DAC board as a way to reduce noise and disturbances.\u003c\/p\u003e\n\u003cp\u003eThe CDUno has been developed through both extensive listening sessions and a meticulous R\u0026amp;D process. The result is an innovative product that accommodates the world of digital audio and delivers it to your system with a rich valve sound.\u003c\/p\u003e\n\u003cp\u003eThe audio stage is designed around a single 12AU7\/\/ECC82 double triode operating in pure class A, defining the sonic performance of the unit, followed by a solid state discrete buffer still operating in class A for a low impedance output and ideal audio behavior. The totem pole circuit is also used in the One and 150 in the Only 90 of the same line of CDdue.\u003c\/p\u003e","brand":"Unison Research","offers":[{"title":"Silver","offer_id":41659666038981,"sku":"CD Uno Silver","price":2999.0,"currency_code":"USD","in_stock":false},{"title":"Black (Special Order)","offer_id":41659666071749,"sku":"CD Uno BLack","price":3199.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/products\/CD_UNO_SILVERfront.jpg?v=1661439560"},{"product_id":"nuprime-cdt-9-cd-transport","title":"NuPrime CDT-9 CD Transport","description":"\u003cp\u003eNuPrime CDT-9:\u003cbr\u003eThe CDT-9 Transport comes with features that enable it to out perform all CD transports in its price range.\u003c\/p\u003e\n\u003cp\u003eHighly Accurate CD Playback\u003cbr\u003eA powerful ARM chip LPC2103F CD reads, writes and controls error correction\u003cbr\u003ePhilips SAA7824HL high-end laser reads\/writes head control and decodes chips for CD transport.\u003cbr\u003eAlgorithm reduces digital interference resulting in extremely low jitter\u003cbr\u003eCoaxial output with a dedicated isolation transformer\u003cbr\u003eLow jitter I2S output for professional use\u003c\/p\u003e\n\u003cp\u003eSampling Rate Converter\u003cbr\u003eThe sampling rate of CD playback can be up sampled to PCM and DSD, from 44.1kHz to 768kHz or DoP256\u003cbr\u003eThe conversion is achieved by up-sampling to mega hertz before down converting to the targeted sampling rate with ultra-low jitter and distortion\u003c\/p\u003e\n\u003cp\u003ePower and Mechanical\u003cbr\u003eCustom R-type professional transformer with shielding\u003cbr\u003eLow power consumption in Standby Mode\u003cbr\u003eNuPrime vibration-free isolation feet\u003cbr\u003eHigh quality aluminium remote control\u003cbr\u003eExternal AC adapter included\u003cbr\u003eBundled with LPS-212 for $219 extra (An additional $200 savings)\u003c\/p\u003e\n\u003cp\u003eOutputs:\u003cbr\u003eOptical Output (up to 24 bits \/ 192 kHz) (DoP64)\u003cbr\u003eCoaxial Output (up to 24 bits \/ 768KHz) (DoP256)\u003cbr\u003eHDMI I2S* Output (up to 24 bits \/ 768KHz) (DoP256)\u003cbr\u003eAES \/ EBU Output (up to 24 bits \/ 768KHz) (DoP256)\u003c\/p\u003e","brand":"NuPrime","offers":[{"title":"Black","offer_id":45075221512389,"sku":"Nuprime_CDT9","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":50852266606789,"sku":"NP-CDT-9-SVR","price":1299.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/3643\/8469\/files\/NPCDT9_BLK_01-Large__44419.jpg?v=1757180169"}],"url":"https:\/\/www.hifiboutique.us\/collections\/cd-players-transports.oembed","provider":"HiFi Boutique","version":"1.0","type":"link"}