Class A vs. AB vs. D... can you hear a difference?

Ngjockey, you have to realize that linear power supply is in reality a primitive switcher that pollutes AC even more. Jeff Rowland designed his latest class AB power amps with SMPS to reduce noise. For the same reason he designed his Capri preamp with SMPS (where efficiency is not important). Benchmark was able to improve signal to noise ratio from 116 to 126dB by changing power supply from linear in DAC1 to SMPS in DAC2 . Recent power amp from Benchmark is also powered by SMPS. As for the highs in class D, I agree - they sound different, more natural. Brass sounds less splashy and more like brass.

I owned class D amplifiers on two occasions, an expensive set of Cary monoblocks being one of them.

First of all, these 500 watts per unit sounded no more authoritative than the 100 watts per side integrated it replaced.

Secondly, even though I wanted to like them, I just could not get used to the sound. Pretty bad experience in my case.

I enjoy the Heat of pure class A operation in big class A older amps, keeps my family warm in the winter

Come on Keith come clean I know you live in Memphis Al.

Just how cold does it get in Memphis during the winter LOL
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Ebm wrote,

"If they are well made you can not hear the difference."

Ones assumes you mean if they aren't put together with coat hangers and bubble gum.

I guess it should be pointed out that I am looking at get peak levels of 105 db. (THX standard)