I've heard the JTR 12s, /great/ speakers. I posted some impressions a bit back I'll take a look for.
Jeff at JTR is also a really nice guy.
Cheers.
QSC makes a great amp, I've spent many-a-quality-time with them. QSC makes a great, reliable, amplifier at a good price.
I more recently realized that the Crest CC series amplifiers are almost silent, quieter than my PlayStation 3. They also make a great amplifier, I've used them a long time just never noticed how quiet they were until I connected one in my home theater. Needless to say, now my home theater rack is all Crest. Their protection is partially solenoid based, so when you turn it on it makes a big mechanical "clank" after it stabalizes but then after that they are extremely quiet.
Also, both QSC and Crest are American companies, which is a bit of a "thing" with me lately considering the economy.