Atma-Sphere Class D… Amazing

I really don’t care what others think of the sound of these amps, regardless of how many owners praise them- there are probably billions of people who love ketchup and yet I am not a fan.

I would like to learn more about the engineering and design of these amps. It has been said that there was a patent awarded for some aspect of the design- I would like to know more about exactly what was patented. I would like to see the measurements and wonder why they haven’t been published yet when this product has been years in the making- it takes very little time to upload a few files. I would like to hear the designer’s take on how his class d design differs from those of Hypex and Purifi and at 3 to 4 times the price, what they offer over the Hypex and Purifi products that makes them worth the considerable difference. I would like to know why he decided to design his own class d modules, especially in light of the fact that it is no trivial matter and a completely different task than designing a tube amp....I would like to know why the designer choose GaNfets over standard fets and what advantages he believes they offer at his operating frequency over standard fets....

@kuribo 

    You can look up the patent pretty easily. And I would say from a consumer that has had most of those amps in my own system. They quality of the Sonic Characters (soundstage, details, realism, engaging, not bright or harsh, transparency etc) puts them above all others I’ve had in my system. If you read up some posts you’ll see the class d as well as others I’ve owned or had in my system for demo. I have not found any Class D that I liked till these came along. JMHO…

@kuribo 

  Watch some of Ralph’s interviews and he pretty much lays it out why the new adventure. 

@pstores

Sure, I could look up the patent, or the designer could explain it himself and provide his take on what problem it was designed to solve and why.

With all due respect, while your experience with a wide variety of amps is impressive on its face, all it really means to me is that you have tried a wide variety of amps. I can perhaps assume you are confident in your choice based on that wide audition experience. Your preferences and experiences can not be extrapolated to predict my own, as such, they are useless to me and others in that regard.

I have read and watched the interviews and understand the why- I am more interested in the how. There are many traditional tube amp companies who have seen the future and are now marketing class d amps. Not hard to understand the why.