2. amps-preamps
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Atma-Sphere Class D… Amazing

Today I picked up my Atma-Sphere Class D Amps. These aren’t broken in yet. And they are simply amazing. I’ve listen to a lot of High End Class D. Some that cost many times what Atma-Sphere Class D costs. I wasn’t a fan of any of them. But these amps are amazing. I really expected to hate them. So my expectations were low. The Details are of what I’ve never heard from any other amps. They are extremely neutral. To say the realism is is extremely good is a gross understatement. They are so transparent it’s scary. These amps just grab you and suck you into the music. After I live with them some and get them broken in. And do some comparisons to some other high end Amps Solid State, Tubes and Class D’s, also in other systems I’ll do a more comprehensive review. But for now, these are simply amazing amps.. Congrats to Ralph and his team. You guys nailed on these.

 

 

128x128pstores
aw-agd
17 posts
 

@noske I want to assure that at AGD we are confident to provide the most advance technology with all our designs.

Personally, and to dissipate your doubts, I have been working on Class D since 2001 and on GaN technology since 2005.

With all due respect, Silicon Mosfet cannot compete in performance nor on future FOM (Figure of Merit) improvement with GaN based semiconductors, it is not a matter of opinion, it is physics. 

ghasley
2,499 posts
 

@aw-agd and for your first post you chose to post on a thread originated by an Atmasphere owner specifically about Atmasphere amplifiers? Were you somehow alerted to this thread by a close associate who has been following this thread?

kuribo
524 posts
 

@ghasley 

 

 

 

 

I assume @kuribo is a sincere potential customer

I have been using class d amps for more than 25 years. I have followed the tech with great interest over that period. I am currently putting together an active 3 way system and am indeed looking for 6 channels of amplification. With my long history using class d amps, yes, I am a sincere potential customer. I was originally drawn to class d because of its efficiency, form factor, and price/performance. While I can afford to buy whatever I like I still believe in price/performance and with class d amps with stellar performance available these days for incredibly reasonable prices, I don't think it unreasonable to expect to see performance measurements, especially for products that seem grossly out of line price-wise with other market entrants. Of course every manufacturer is free to provide as much or as little detail as possible, that's there choice. The consumer also gets to make a choice.

kuribo
524 posts
 

@noske 


 

 


That is quite a slab of tests. I think that someone who owns one will drop-ship one over to Amir at ASR. Probably a couple weeks turnaround.

 

It's quite typical these days. I can assure you most bona fide manufacturers do much more than what I have listed.

My understanding is someone has already sent one for testing, or is in the process. We should know fairly soon how it "measures up".

Yes, I am aware of Atmasphere's recent entry into the class d market. I have already previously remarked that it is an impressive feat for someone who has previously been an exclusive designer of tube amps to make the leap to class d, which I know is a whole different ballgame. Bruno Putzeys once described class d amps as wanting to do everything but make music, or something to that effect, meaning, one must overcome their inherent nature and climb many mountains to tame them. No doubt it is a tribute to Ralph to produce something which on subjective grounds seems to have attracted a following on his first go around.

aw-agd
17 posts
 

@ghasley I simply found important to clarify to @noske, the user that called in AGD (and Atmasphere) implying a possible lack of experience (compared to Purifi) on the matter of technology, specifically on Class D and Silicon. I brought to his attention what the fact are. Is it something that is not allowed in this forum?

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