Should I buy a Class A Amp.

Hi don..you're probably overwhelmed with all the responses to your question. .I've been on the same journey with my audio gear..my first setup was a really old yamaha integrated with some phase tech speakers. .then I bought a old used onix amplifier and some rega ela loud speaker's. .I was interested in tube amps having grown up around them so I had the good fortune of doing a demo in my home for a week..the best way to buy audio gear in my opinion. I bought a used cary sli80. It sounds awesome and looks cool as hell..you can get a smoking deal on them and they are really versatile. .you can run many power tubes and run it in 40 or 80 watt mode,I rolled the capacitors in mine and wow what a difference. .that's my two cents. Best of luck!

the only way I would go class A is if you need an extra room heater. 

I am no rocket scientist here, but my suggestion would be fairly high-power A/B tube amps, 100 WPC, aided by a s/s Class D amp in each of the bottom end or sub-woofs, rolling off at about 100 Hz.. The Class Ds take all the heavy lifting away from the toobs, which can run quietly, coolly, and never leave Class A and can be run at fairly low bias. I defy anyone who says you need to run Class A all the way down to 30 Hz. All in, I'm only pulling about 6.8 amps from the wall. And that's only when I'm entertaining the entire neighbourhood. By all means, By all means, dedicate a circuit breaker of 20 amps and a manual-reset GFCI. I run a pair of Tylers at 4 ohms and have never blown a 3 amp fuse. Never had better sound, either.

Could it be said that Class A amps, like Pass for example, play better on certain types of music? Better classical than rock, for instance?

As mentioned earlier, no.

The idea that an amp can be better at one form of music as opposed to another is one of the bigger audio myths out there.

Could it be said that Class A amps, like Pass for example, play better on certain types of music? Better classical than rock, for instance?

Actually, it was I who asked this question, and I had not ever heard this said before, myth or otherwise.

Fact is, with my Pass XA30.5, that is exactly the impression I get. Better on some types of music than others. Relatively speaking.