Atma-Sphere Class D… Amazing

@kuribo Make an effort! Between Ralph’s refutation of ricevs’s pointless proposed modifications, and the Cook’s Tour of the inside of the amp that he gives in the San Francisco video (posted somewhere above), there’s plenty of technical information out there. If you can’t accept that they sound good without seeing a suite of measurements, then you’re in the wrong forum--try ASR for size.

~ a happy AGD owner (OMG! also no measurements).

@juanmanuelfangioii

I haven’t put Ralph down, I have said I would like to see measurements and hear about his patent, design, value proposition, etc. All very fair game for a $5000 piece of equipment. Besides, he’s more than capable of speaking for himself and hardly needs you or anyone else to defend him.

Admiration is based on a subjective assessment, so no, it really isn't possible to admire objectively. I have given a rationale for my dislike of certain amp designs. Perhaps you need to reread my criticism of these amps to see than in fact I have criticized their out of date design which results in a load variant frequency response. That is objective fact.

Yes, I have put down some amps that frankly are more a marketing scam than state of the art engineering. I give praise where praise is due. Orchard is an excellent example.

@twoleftears

"Between Ralph’s refutation of ricevs’s pointless proposed modifications, and the Cook’s Tour of the inside of the amp that he gives in the San Francisco video (posted somewhere above), there’s plenty of technical information out there. If you can’t accept that they sound good without seeing a suite of measurements, then you’re in the wrong forum"

Sorry, there has been precious little discussion of technical side of this amp, none of which answers the questions or addresses the issues I put forth earlier.

And no, I can’t accept that they sound good without hearing them myself with my equipment and my room. I have made it clear, repeatedly, that I am neither interested in, nor place any value, on the subjective impressions of others using the amp in their system and room. Perhaps you missed that the first 12 times. I would like to see the measurements to see how it performs compared to state of the art class d amp designs available from Hypex, Purifi, and Orchard- measurements show how well it does what an amp is made for: taking a small signal and making it large. I would like to hear more about the patent and why I should consider this amp at 3 times the price of current state of the art amps, among other things. No, measurements will not tell me if I find it pleasing to listen to but they will tell me things that are important to MY evaluation. I don’t need your permission nor approval to form my opinions.



 

@kuribo 

i found five patents granted to Ralph...the link is below. What is your setup and have you considered listing your system in the section provided?

@ghasley 

thanks for the link. I would like to hear specifics from Ralph on the benefits and advantages of his inventions as they pertain to his class d audio amp.

My set-up has no informative value or relevance to anyone other than myself. I see no useful purpose in sharing it. Sorry.

@twoleftears ~try ASR for size.... a happy AGD owner (OMG! also no measurements).

You own AGD and have not even looked at the website where a few graphs are provided like FFT, square wave and a couple other things (measurements) are provided.

Also the product manual.

In other circumstances I’d have enjoyed your considered opinion as you are an owner, but that lost me a bit.

I am a little disappointed that Ralph does not supply similar information.  No way am I gunna buy anything without these pretty basic fast facts.