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.

 

 

pstores

>Does the quote above suggest Alberto (AGD) is misleading in his saying his GANFETis made for audio?" 

Alberto is correct. There is a large variety of GanFET transistors that are made for different voltages and currents and switching times. Only some of them are good for power amps for a number of technical reasons.

GanFET transistors in audio amplifier work entirely differently than let's say bipolar or FET transistors in class A or A/B.

They are just switches, there is no transistor curve involved in shaping the sound like in Class A or B.

GanFET transistor used in class D are just a better faster switches then MOSFETs traditionally used in old Class D.  They produce a more square square wave resulting in bringing out all this magic otherwise lost in the grunge generated by MOSFETs. I wrote an illustrated primer paper on Gan FET explaining the mechanism in detail:

https://mytek.audio/shop/empire-ganfet-stereo-monoblock-introductory-special-free-b-amp-2#attr=11

Michal, Mytek Chief Designer

@mihow     There is a BIG difference in saying that some Ganfets are made specifically for audio purposes as opposed to saying some Ganfets are more suitable for audio (read power amp) applications than others. Your post supports the latter...Alberto's post claims the former. What the actual truth of the matter is, I do not claim to know.

Just spoke with Ralph- I may be pulling trigger on the atma-sphere-class-d monos- my system is Vandersteen 3A Sigantures; right now I am using B&K Reference 2220 and Lynn Klimax Kontrol with dynamik PS, optical Ethernet to Eversolo T10 paired w/Terminator 15th or Pontus 15th (I can use either or a Venus 15th), Denafrips Avatar transport. I barely use stereo speakers - I make headphones here in NY called JM AUDIO  so all my best gear goes towards the headphone set ups (I have a few desk set ups. Would you say the Atmasphere D's would sound great with the Vandertseens? I know company's like Arye use zero global feedback and helps with time domain- so I am asking anyone for help- much appreciated! -John M