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Music with differences between class A and class D amplifiers

Hello,

I own an ATI AT523NC Class D amplifier and recently purchased a Schiit Aegir Class A amplifier to compare two different approaches to amplification. I've been switching them back and forth all day but can't hear any difference at all between the two in my music. The good news is, both of them sound great.

Does anyone have any suggestions for music that sounded clearly different between their Class A and Class D amplifiers? If so, I would appreciate some pointers on what to listen for.

My setup is PC (Roon) -> Matrix Audio X-Sabre Pro DAC -> Schiit Freya Plus Pre-Amp -> Amplifier -> KEF LS50s.

Thank you for your help.
jllu
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almarg
9,670 posts
 
Although I have never used a class D amplifier I suspect that well engineered recordings of classical solo piano music, that contain a lot of high speed "transients," would be good choices for this purpose.  You would particularly look for how well notes in the treble region are reproduced, in terms of definition and "clean" transient response.

Here is an example of the kind of music I am referring to:

https://www.youtube.com/watch?v=wj1xQUUJ94U

Happy holidays!  Regards,
-- Al
 
jllu OP
21 posts
 
Thank you Al, I appreciate the help. Will take a listen tonight, happy holidays to you as well!
kw6
692 posts
 
Hey Jllu you just discovered the secret to audiophillia! If amps are operating within their parameters and not clipping and have same low distortion they sound basically the same. Don't be fooled into buying expensive amps put the money into your room and speakers where there is a rewarding difference. And don't get me started on cables. Lol
4diagrams
10 posts
 
+1 for kw6 comment
roberjerman
4,319 posts
 
+1 kw6 !
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