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

geof3
every single thread around this topic you bring up Wilson Alexias
Because they are a classic for a heavy load on the amp even though efficient, and have been documented and measured in many article’s with graphs just for you. And if your driving them with a Pass XA60.5 sure they’ll work, but I can guarantee you, that you have not heard them at their best. Because the owner of the Alexia’s had the XA160 (mosfet) and it sounded good but they were quickly replaced by the Gryphon Antillion (bi-polar) once he heard the difference.



douglas_schroeder
It would be a shame if you lost your house. Good thing I’m not a betting man. ;)
Don’t think there’s a chance that would happen, care to name the Class-D amp you think would better the Gryphon Antillion?

Cheers George
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. :)

I know you consider Pass Labs products as well designed
Yes they are, and that’s where it ends for me, much prefer the sound of Nelson’s Threshold amps he designed using bi-polar outputs. I don’t like the sound of Mosfet output amps, and that they don’t drive very low impedances as like the great bi-polars can, like Class-D also has diminishing performance well below 4ohms as well.


I submit the Legacy i.V4 Ultra for comparison to the Gryphon Antillion.

They’re just IcePower 1200 modules https://icepower.dk/buy/as-series/1200as1/ maybe with a couple of mods.
Your a very game man putting up an IcePower 4ch Class-D ( 610 watts per channel into 8 ohms, 1,000 watts into 4 ohms peak current 38A😴) They never seem to show 2ohm specs for Class-D as it usually ***** itself

A Gryphon Antillion https://gryphon-audio.dk/wp-content/uploads/2018/10/ANTILEON_1.jpg even though lower in 8ohm wattage nails the Icepower, (150 watts per channel into 8 ohms, 300w into 4ohm, 600w into 2ohm, and 1200 watts per channel into 1 ohm, 5000w!!!! peak per channel into 1/2ohm ohm peak current over 100amps)😵
a very game man indeed.

"A "great designed" class-A solid state cannot be bettered."
Legacy Audio i.V4 Ultra Amplifier vs CODA #16 will be done by me when I go to upgrade my CODA #8 to the #16. The dealer has the  Legacy Audio i.V4 Ultra Amplifier amp sitting right beside the #16. He is a huge Legacy Audio dealer. I was thinking of listening to it last time but I was having too much fun with the #16.


Easy to wire up

Just get 2 of these https://icepower.dk/buy/as-series/1200as1/ $600pair

And one of these https://icepower.dk/buy/power-supplies/1500s/ $400

Throw them in a nice box https://www.ebay.com.au/itm/162028925013?hash=item25b9ad3055:g:K~kAAOSw5VZXA2Ad $100

And for $1100 you’ll have a stereo version that’s just as good. You'll save $5k!!!!!!!!

Cheers George