Atma-Sphere Class D… Amazing

Here is a real sleeper....and maybe a super amp?:

Peachtree has just released a The Gan 1 class D amp that has NO FEEDBACK....no op amps......it is pure digital. Takes PCM via coax only and converts it to PWM in software and uses GAN output stage. NO feedback.

• @ricevs
• Thanks for sharing this.
• Now this would be a fascinating contrast comparison with the Atma-Sphere amplifiers. Vastly different design and execution entirely.
  
  No feedback vs high feedback.
• No Op-amp vs Op-amp implementation. My oh my, quite a compelling listening experience this could be.
•  
• I wasn’t aware that class D amplification was doable without the utilization of negative feedback
• Charles

@charles1dad

Well I have had the peachtrees in my system. They are at best mediocre. They don’t compare to the Atma-Sphere. The have a clinical, dry lifeless sonic character. Soundstage and depth isn’t there either. And the don’t have the sort of realism the Atma-Sphere has. The Atma-Sphere is true to instruments. A piano sound as a piano should. As well as Sax, drum beats, brushes and cymbals. I have also had some of the other amps he lists in my system. As to date the Atma-Sphere Class D beats them all. And not by a small margin. And is the only Class D I have like within my system. And I really like them. Recivs is just trolling here and trying to derail the thread. And I doubt he has heard any of the Amps he lists. And I know he’s never heard the Atma-Sphere. So not sure how one can review an amp that they’ve never heard before.

@pstores

I do not doubt for a moment your immense satisfaction with the Atma-Sphere amplifiers. Admittedly I have no idea what Ric has or hasn’t actually heard. I’m just intrigued by this very latest no feedback class D amplifier without the ubiquitous Op-amps usage. Did you hear this specific zero feedback design?

Thanks,

Charles

Real KNOWLEDGE in audio.......is how something sounds

How something "sounds" is subjective, an opinion, not a fact, and thus not "real knowledge", which is something that has meaning beyond one's self.

You can't seem to get beyond the simple truth that your experienced subjective reality and beliefs are nothing but opinions and are no more valid than anyone else's. The guru complex.

I have had the GAN 400 and Nova 500 within my system. As well as others I don’t recal the model numbers. I believe they are low feedback not zero. Just remember this advice is coming from someone who believes Nelson Pass, Dave Hafler, Ralph Karsten, Frank Van Alstine, Keith Johnson, Bob Carver, Dieter Burmester, John Curl, David Berning, Saul Marantz and others should be siliconing and wire tying their amps together. And none really have a clue how to make a great amp. And all could learn a lot from him. So you should take what he says with a grain of salt. On top of that… He’s never had a product brought to market. If he had and had implemented his design features of Wood, Silicone and wire ties to hold his amps together. He’d be a world class Audio Engineer. Or at the very least making millions  updating and modifying Pass Labs XA250.8’s. As they aren’t glued together and held together with wire ties. And the people that can afford a cobbled together subpar Pass XA250.8 would be on waiting lists for him to tweak their amps. For me I’ll stick with Nelson, Saul, Ralph for professionally designed and built equipment. I’ll put money on that he can’t make an Atma-Sphere amp sound better. He should buy a set. Tweak them. And Ill bring mine for and AB test to his house, apartment, or trailer park that he lives in. I’d like to see him put his money where his mouth is.