2. amps-preamps
  3. 179461-14697

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
sdl4
216 posts
 

@atmasphere  Thanks for letting me know about the HiFi+ review. I was able to track it down, and it presents a very positive view of the sound quality of the A-S Class D amps. Going forward, these monoblocks will be high on my list of amps I'd like to audition in my home system. Are you still planning to build a version with somewhat higher power output?

fundsgon
150 posts
 

@sdl4 

I would also be interested in higher power monoblocks, something in the range of 400 to 500 Watts into 4 Ohms. I want to be able to crack the foundation when the urge arises.

Ag insider logo xs@2x
o_holter
978 posts
 

I hope Atma-sphere are successful with the new class D amps. This is certainly well-deserved. I love my MA-1 amps, and have learned to live with them, using NOS tubes, turn them off after listening, and so on. The best advice I got from Ralph was to match them with optimal speakers. Is this the case with the new class D amps too? Before the MA-1s, I had the huge Krell FPB600, and was told that it could drive "anything". That wasn't quite true, however.

clio09
3,360 posts
 

I love my MA-1 amps, and have learned to live with them, using NOS tubes, turn them off after listening, and so on. The best advice I got from Ralph was to match them with optimal speakers.

I would say that advice applies to any amplifier.

 

Ag insider logo xs@2x
o_holter
978 posts
 

Yes, but I think it is more evident with tube amps than with s-state? The MA-1s can sound ok with 4 ohm (maybe), quite good with 8 ohm, but to know what they are really capable of, you need to go up - my speakers are 16 ohms, staying between 13 and 17 ohms above the bass impedance peaks, with efficiency:  92 dB/1 watt.

More to discover