NuPrime ST-10 ™

Reference LE class power amplifier

The ST-10 amplifier is NuPrime's Reference LE power amplifier for listeners who require a reference-class amplifier at a somewhat lesser power rating of 2 x 150W (8 Ohm). NuPrime’s sonic character stands well apart from – and indeed above – the soft, cushy sound we often associate with most tubed amplification and the dry, clinically edgy sound we often associate with solid-state and switching technology. Rarely does an amp achieve an ideal balance of richly textured timbres and harmonics, bottom-end authority, startling dynamics, exquisite low-level detail, and a fully revealed, fully dimensional sound stage against a backdrop of mile-deep silence.

NuPrime STA-9 Stereo Amplifier

Class A+D Stereo Amp bridgeable into a 290W mono amp

The NuPrime STA-9, a 2 X 120W Class A+D stereo amp, bridgeable into a 290W mono amp, is designed with enhanced even-order harmonic circuitry that mimics the most attractive features of tubed-amp sound without incurring tubes’ drawbacks and limitations. The STA-9's spacious, transparent, dynamic and luxuriously textured soundstage has to be heard to believe.

The NuPrime STA-6 Stereo Amplifier (Commercial)

NuPrime audiophile quality commercial products are typically not sold in retail stores. The commercial product line is not designed for style but performance can be sound quality can be just as good as the home product line.

Class A+D Stereo Amplifier Brigeable into a 160 watt Mono Amplifier

With 2 X 90W Class A+D stereo amp, bridgeable into a 160W mono amp, STA-6 is designed with enhanced even-order harmonic circuitry that produces sonic characteristic similar to NuPrime STA-9, but leaning toward neutral with a slight hint of warmth. The STA-6's spacious, transparent, dynamic and luxuriously textured soundstage has to be heard to believed.

ST-10 Reviews

Product Of The Year award

 

OUR TOP PICKS by The Absolute Sound

"...over the years I’ve reviewed and used plenty of digital power amplifiers from Bel Canto, Wyred4Sound, April Music, and others, and I appreciate what a well-designed model can bring to a system. And it happens that the ST-10 is the best digital power amplifier I’ve heard to date...
 
...Within their product categories the DAC-10H DAC/preamp and ST-10 basic power amplifier are priced at the lower mid-level, yet they both deliver a level of performance that could be considered exemplary regardless of their cost... ", - Steven Stone
 

"I have Audience 2+2 in a stereo system in the bedroom, they have been powered by Cary Audio and Parasound multi channels. Due to the weight and only stereo need i sold the Cary and Parasound for the Nuprime ST-10. I was cautious as i have hated my previous experiments with class d amps such as rotel, pioneer and wyred4sound, all cold and lifeless, boring and flat. The ST-10 was a revelation, sweet, very detailed, tight, extended and bouncy, it had life and was a joyful match with the 2+2's, i cannot remember a more enjoyable sound in 30 years, especially for the money, and the mids are incredible. In my main system i needed to replace my hernia weighted Cary 7 channel, so with my positive experience with the ST-10 I plumped for the MCH-K38 at half the weight of the Cary and hoping it would come close to the exceptional ST-10. The MCH-K38 will be used in a 5.1 system driving Audience 4+4's when they arrive from the factory. In 5.1 mode the first 4 channels will be bridged and that is how i compared it to the ST-10, not only did it equal the ST-10 but in bridged mode bettered it. Same family signature but just with a more effortless control, more open, less restrained and detailed, I am extremely surprised and very happy, what a combination made in heaven, the Audience and the Nuprime .... rock on ….", - ZAPHOD2012 (audiocircle.com)

STA-9 Reviews

" - exceptionally clean, clear sound, not least promotes a very pleasant, seemingly organic timbres representation.

- tonal neutrality, the sound image becomes but absolutely consistent and coherent.

- an impeccable resolution, delivered pleasant long-term compatible sound.

- well-balanced voice or midrange.

- excellent space: precise focus

 - we recommended listeners to experience with both the stereo and mono version ", Jörg Dames (fairaudio.de)

 

Combination of energy and musicality

  "...NuPrime's achievements have earned an excellent reputation, including its digital amplifiers, including the STA-9 model on power stages using

  a brand design and preceded by class A gain stages. Listeners get excellent sound results, which should reconcile the advocates of opposing

  opinions on the amplification classes!..."- , Philippe Daussin (qobuz.com)

Best of 2016 (Part-Time Audiophile.com)

"...How does 120W x 2 worth of hybrid Class A + Class D amplification for $649 sound? How about running a pair of them in mono mode for a total of 290W per channel? You’d think there must surely be some compromise involved yet try as I might I just can’t find it.These little fellows offer richly textured sound with an excellent soundstage and deep low-end extension, all in a tiny package. The amps build on the classic NuForce Reference models of yesteryear, but take on a subtly relaxed flavor where those older models could be a bit high strung. This is a hugely crowd-pleasing product worthy of serious attention despite its affordable nature......"- , John Grandberg (parttimeaudiophile.com)