Class D Technology

http://www.hifi-advice.com/blog/review/analog-reviews/amplifier-reviews/nuprime-st-10-power-amp/

The nuprime should be considered more seriously, is not just one of the best class d, but one of the best under 10.000 usd maybe, here is compared with some big guys like ayre, mola mola, primaluna, Bryston in very high end systems, hope this helps someone like it helps me to make a decision

Cheers 

Although one should always be skeptical of audio reviews due to quid pro quo, this statement is quite the endorsement. I know that NuPrime has specifically tried to mimic the sound of linear amps (if you read their marketing copy) so their engineers may be doing something right. 

I’ve heard many class D amps, but have liked very few. While bass control and neutrality are often a piece of cake for these amps, they are usually let down by thinness, harmonic deficiences and an unnatural timbre. The NuPrime ST-10 is the first class D design that sounds timbrally wholly convincing to me. Piano really sounds like piano, not like synthesizer and vocals are just as direct-coupled as they are in real life. Add in bass heft and thundering dynamics like I have not yet heard from other class D designs. Only the Mola-Mola Kalugas ultimately provide more refinement and transparency but these are placed at the complete opposite price spectrum.

The fact is that its too new for Class D's.....  the sound is just not there.   There is a class D that can compete, (Merrill - but it costs many thousands)....but for now, they are just not musical.

" he fact is that its too new for Class D's..... the sound is just not there.   There is a class D that can compete, (Merrill - but it costs many thousands)....but for now, they are just not musical."

stringreen,

     You obviously need to either reread this entire thread or gain some personal experience by auditioning some of the many very good and reasonably priced class D amps  currently available.

Tim

I've had the M700's for over a month. I first got a PS Audio DirectStream DAC w/Bridge II for streaming MQA. I noticed the M700 on the PSA forum but was hesitant to replace my custom built Stratos. I had done a shot-out for my 3.6 speakers by buying several used amps: Butler, MacIntosh 205, a class A heater, and a tube amp. The Stratos won out on detail. I resold the other amps. When I got the M700's I read they take a long time to burn-in. I let them run when I was away. I knew that the Stratos amps were underpowered for the 3.6's. I use the DirectStream as a pre. The M700's handle the 3.6' with effortless agility. Sometimes you think the musicians are in the room - a little spooky. The sound stage is locked in place. My Maggies have never sounded like this. The Stereophile online review is out and paper is on the way. The M700 was favorabley compared to $12,000 speaker.