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

Bill, I'm very sorry that I wasn't objective and lost site of this question.
"Some Class A amps go to class AB after so many watts... is there an audible change?"

A short answer would be, don't worry, a good representation of Class A, A/B or D could do a good job in your home theater.
It is more how the design is implemented than the class of Amplifier. Check the forums and read a few reviews, you'll zone in on a few pieces very quickly. I'm sure that if you would like to advise if your are thinking a receiver or integrated or seperates, you will get some good advice.
Good Listening, Tim

Tim, Please accept my apologies for what appears to be a comment directed at you as that was not my intention.

Without even thinking that my comments were following yours I didn't mean that YOU weren't objective, rather a portion of the thread in general.

Again my apologies.

in the Threshold S/160 loud, the sound is more dirty, but do not notice changes in dynamics, and precision ... at low volume work in class A, greater volume and less accurate

M-db and Bill, I also apologize, I realized those remarks might or might not at all have been directed at me... I sometimes find this forum quite difficult, we are a bunch of arrogant audio heads, we all know it all. On occasion some new members or less active members find their courage to get involved and post, then out of nowhere they get shot down and that ends their involvement. I'm sure that I am guilty. I've been at this 35 years and have said DUMB things on this forum... I hope he doesn't mind, but the mighty Ralph Karsten once sent me a private email about a post, he was caring that I didn't look stupid... what a gentleman!.. I explained my position to him, he said I was correct and then I re explained correctly on the forum. This is what we need in this this forum.... Sorry for the rant here and M-db, I don't make any of this statement toward you, in fact your points were quite valid. I've seen others slapped several times in other threads just the within past few weeks and its been on my mind. Bill, didn't mean to steal your thread. Good luck. Tim

Yes. Within the same amp, you can tell the difference between A and A/B. Just listen to a Plinius.