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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
holmz's avatar
holmz
2,328 posts
 

…

@kuribo Ok, I know I’m feeding the troll here, but please share where one can get SOTA sound for $1000.  I can’t wait to be educated.  Moron. 

He has to be referring to the Hypex, as the purifi are more like 2k$.
But the Hypex are really pretty good.

To me they define the bottom separation level, of the Class-D “high end”. 
 

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niodari's avatar
niodari
305 posts
 

@jjss49, I am too far from electronics, but a common sense says that there may be something rational in some critical suggestions. Of course, someone like, you, better understanding the technical background, may really be true that such "suggestions" have no technical soundness. But, at least, I think that they do not harm. So, what is the point in the sarcastic notes?  

kuribo
524 posts
 

@soix

Here you go:


 

"Conclusions
It was just a few years ago that people scuffed at class-D amps not being very clean or good for audiophile use. How the situation has changed. First with Hypex modules and now with the Purifi 1ET400A. Audiophile myths are shattered with use of large amount of feedback and high bandwidth to produce an amplifier which brings transparency to anything you throw at it.

Importantly, the 1ET400A does all of this while producing a ton of power and staying cool and efficient to boot.

There is a subjective aspect to measurements that doesn't come across in the graphs. When I run these tests with switching amplifiers, I often watch the analyzer struggle to get reliable reading, or there are jumps and glitches in measurements. None of that was here. The amplifier basically acted like a traditional class AB amplifier. Indeed, I measured it with and without my AES-17 40 kHz filter and the analyzer was happy both ways. This is when I know there is quality engineering that has gone into design of this amplifier.

Overall, it is my pleasure to strongly recommend the Purifi 1ET400A to DIY and OEM manufacturers."


Who’s the moron?

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