Klipsch Cornwall III with Bryston 4B SST2 / BP17 ?

Class A rated amps always mated well with my Corwalls & Heresey's. The Bryston has more power than you could ever use but it is not a "bright" sounding amp. I'd try it.

I don't think the Bryston would be my first choice (power overkill perhaps for those speakers), but I have to believe it is up to the task and can be made to work quite well. The key will be teh room acoustics and what is needed upstream to feed the Bryston for teh results you are looking for.

I would strongly agree with Viridian and Mapman - this would be WAY more power than those speakers would ever need, and I would add that this would really be contrary to the design of the speaker to put that much power through it. I'm not saying you have to use a flea-watt amp with them (in fact, the great thing about high-efficiency speakers is you can pretty much drive them with anything you want), but they will mate much better with tubes for sure. IME, most of the people who bitch about horn speakers being bright or shrill are the same people who insist on pumping hundreds of watts through them....I drive my Cornwall 2's with a tube amp that does between 21 and 35 watts per channel, and you could get away with as little as 8 watts, I would think. Possibly even less.

You'll need a good tube pre-amp and some warm cables (Cardas 300B or Kimber PBJ) if you want to use that combo. It still might be a bit too etchy. The corns really like some nice tube power.

There`s no harm in trying this combination and just listen and decide. Everthing I`ve ever read or heard about these speakers suggest low-moderate power tube amplifiers are a much better direction to go. It does not seem your amp will give the best this speaker has to offer.
Regards,