Class A amps


I've read a few articles on class A amps but still don't have a good understanding of how it affects sound quality. I've even seen amps which can be swithced into class A mode or AB. Does anyone have experience with this type of unit? Does class A have a true audible advantage or can it be detected only by test instruments? If it is audible, in what resepects? Thanks, Rick M.
mili224

Showing 3 responses by douglas_schroeder

A great class A SS amp cannot be bettered, paraphrasing.

That’s true, when you discount the class D amps that best Class A.

Want an example? How about several? Read my review of the Legacy Audio i.V4 Ultra Amplifier, which has bested ALL other classes of amps I have reviewed at Dagogo.com
I think that would be a fun comparison. It would be a shame if you lost your house. Good thing I'm not a betting man.  ;)



I submit the Legacy i.V4 Ultra for comparison to the Gryphon Antillion. The i.V4 Ultra is the best class D I have used, so that would be my choice.

I know you consider Pass Labs products as well designed, as do I. Yet, 3 Pass Labs amps, including the $42K Pass XA200.8 Monos, and the First Watt J2, all were bested by the i.V4 Ultra. I discuss this in my review at Dagogo.com. All of those falling to the Legacy i.V4 Ultra would sufficiently falsify your statement, "A great designed class-A solid state cannot be bettered."

Has anyone done this comparison (Legacy Audio i.V4 Ultra vs. Gryphon Antillion) in multiple systems? I would build approximately 8-12 systems to see how the amps would react across a spectrum of components and speaker genres. It’s not uncommon for an amp or other components such as pre, DAC, etc. to swap places to a degree, depending upon the ancillary components and cables used. It is quite possible that the comparison would end in a draw, where there were roughly equal appealing performance characteristics to each amp. No one knows apart form a comparison.


"Don’t think there’s a chance..." Thank you for your opinion. Opinions apart from actual comparisons are not too important to me. :)