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NuPrime Audio Reference 20 Mono Amplifier


Product Description

Manufacturer's Description:

The NuPrime Reference 20 Mono Amplifier

NuPrime Reference 20 came from the evolution of esteemed NuForce's award-winning Reference amps, after NuPrime has acquired the NuForce high end product line. While the Reference 20 retains all of the Reference 18's superior sonic attributes, the amp’s higher 420W @ 4 Ohm output power brings one closer yet to the goal of supreme performance. The Ref 20's low-ESR Cross Matrix Array (CMA) capacitor assembly features high-performance capacitors in a proprietary, non-resonant alignment. Unifying such refined technology with superior power yields truly unsurpassed speed, transparency and resolution, along with genuinely authoritative dynamics. The net response is a natural, non-fatiguing rendition of music that simply flows from a palpably real soundstage.


A pair of Ref 20s in a fine, audiophile-grade system will reveal the following qualities:

  • Thundering dynamics and lightning-fast transient speed

  • Sweeter, more natural highs

  • A near-palpable midrange and overall harmonic structure, resulting in a more natural and relaxed presentation

  • A beautifully textured low end exceeding even that of the Ref 20's exemplary authority and control

  • A deeper, more coherent soundstage

Without a doubt, the Ref 20 is destined to be found at the very heart of any dream audio system.


Configuration:Mono Input:

RCA and true balance XLR

Frequency Response:

20 Hz -0.3dB to 120 kHz -3dB

Peak Output Power:

8 ohm (400W) 4 ohm (800W) 2 ohm (1600W)



RMS Power:

8 ohm (200W) 4 ohm (420W) 2 ohm (420W)



Input Impedance:

22K ohm



Input sensitivity:

161mV, 1W@8 ohm; 1.61V, 100W@8 ohm; 1.136V, 100W@4 ohm; 2.34V, 425W@4 ohm


0.01%, 1kHz, 1W to 10W, A Weighted

Input sensitivity for maximum power:



27 db


> 100db at 100W

Trigger Input:

12V DC


17 in W x 15 in D x 1.97 in H (2.56 in H including feet)


16 lbs

Worldwide AC voltage:

90VAC~130VAC or 210VAC~ 250VAC with voltage select switch.

AC Fuse:

Slow blow, 5A, 250VAC

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