About the NuPrime AMG One
The NuPrime AMG One is a mono power amplifier rated at 170 watts into 8 ohms and 220 watts into 4 ohms, a scaled-down version of the NuPrime Evolution Two. It uses NuPrime's Only Distortion Cancellation (ODC) Class D design, switching at 600kHz, with RCA and XLR inputs. At HiFi Boutique it ships free anywhere in the USA, with sales tax already included.
Why Choose the AMG One
A typical feedback design inverts the output signal and sums it with the input to correct the next cycle. NuPrime's ODC design takes the error signal directly from the MOSFETs and output filter, significantly reducing negative feedback and distortion.
NuPrime describes the AMG One as having a wider, deeper soundstage, fast dynamics, a clean background and Class A-like warmth. 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.
Details
Complete Specifications
Complete Specifications
| Inputs |
|
|---|---|
| Frequency response | 10Hz – 50kHz (-3dB) |
| THD+N | 0.003% @ 1kHz (5W) |
| Gain settings |
|
| Trigger | In (>5V) and out (12V) |
| Dimensions (mm) | 55 x 235 x 285 mm (H x W x D) |
| Dimensions (in) | 2.2 x 9.3 x 11.2 in (H x W x D) |
NuPrime AMG One at a Glance
- Power (RMS): 170W @ 8Ω; 220W @ 4Ω
- Peak power: 210W @ 8Ω; 260W @ 4Ω
- Design: mono, ODC Class D switching at 600kHz
- Distortion: THD+N 0.003% @ 1kHz (5W); under 0.006% from 2W to 80W
- Op-amps: NJR MUSES8820 in the preamp stage and Class D oscillator
- Power supply: 250W toroidal transformer, 22,000µF of capacitance, 15A terminals
- Inputs: RCA and XLR, selected by toggle switch
- Finish: grey
AMG One Specifications
| Specification | AMG One |
|---|---|
| Model | AMG One |
| Product Type | Mono power amplifier |
| Power Output (RMS) | 170W @ 8Ω; 220W @ 4Ω |
| Power Output (Peak) | 210W @ 8Ω; 260W @ 4Ω |
| Gain | 26.44dB (voltage gain 21) |
| Sensitivity (to rated power) | 1.7Vrms |
| Input Impedance | 47kΩ |
| Output Impedance | 4mΩ |
| THD / S/N (typical) | 5W: 0.003%, 95dB; 50W: 0.004%, 105dB; 100W: 0.03%, 110dB |
| Frequency Response | 10Hz – 50kHz (-3dB) |
| Inputs | RCA and XLR (toggle selected) |
| Trigger | In (>5V/200mA) and out (12V) |
| Standby / Idle Power | 0.4W / 8W (115V) |
| AC Voltage | 115VAC / 230VAC, voltage select switch |
| Fuse | Slow-blow, 5A, 250VAC |
| Finish | Grey |
| Dimensions (H x W x D) | 55 x 235 x 285 mm (2.2 x 9.3 x 11.2 in) |
Connections & Compatibility
Connections & Compatibility
Who It's For and System Pairing
The AMG One is for listeners who want mono amplifiers in a compact chassis. A stereo system uses two. Pair them with the NuPrime AMG PRA or the NuPrime AMG DAC. For more power, see the NuPrime Evolution Two-SE. Browse the full NuPrime collection to build out your system.
FAQ
FAQ
Is the AMG One stereo or mono?
It is a mono amplifier. A stereo system uses two.
How many watts is the AMG One?
170W RMS into 8 ohms and 220W into 4 ohms, with 210W and 260W peak.
Can I connect RCA and XLR at the same time?
No. NuPrime advises connecting only one and choosing it with the toggle switch.
How does it relate to the Evolution Two?
NuPrime describes the AMG One as a scaled-down version of the Evolution Two, using the same ODC Class D approach.
What warranty does the NuPrime AMG One have?
NuPrime lists a 2-year manufacturer warranty for the AMG One.
Does HiFi Boutique charge shipping or sales tax on the AMG One?
No. The AMG One ships free anywhere in the USA, and sales tax is already included, so the price you see is what you pay.
Is the AMG One stereo or mono?
It is a mono amplifier. A stereo system uses two.
How many watts is the AMG One?
170W RMS into 8 ohms and 220W into 4 ohms, with 210W and 260W peak.
Can I connect RCA and XLR at the same time?
No. NuPrime advises connecting only one and choosing it with the toggle switch.
How does it relate to the Evolution Two?
NuPrime describes the AMG One as a scaled-down version of the Evolution Two, using the same ODC Class D approach.
What warranty does the NuPrime AMG One have?
NuPrime lists a 2-year manufacturer warranty for the AMG One.
Does HiFi Boutique charge shipping or sales tax on the AMG One?
No. The AMG One ships free anywhere in the USA, and sales tax is already included, so the price you see is what you pay.
Shipping & Warranty
Shipping & Warranty
Warranty: 2-year NuPrime manufacturer warranty
Free shipping anywhere in the USA, with sales tax included in the price. No extra fees at checkout.
HiFi Boutique ships within the United States only. Orders ship within 2 business days, with a tracking number. See the shipping policy.