recommendations for amplifiers that don't emit tons of heat


I tried a Krell ksa 150 and while I liked the sound, it was like having a space heater in the room. I now have an Audio research vt100. It sounds fantastic, but it makes the room hot as well. Not as bad as the Krell, but it's still a drag in the summer.

I'm guessing I should just suck it up, but I'm curious what cooler running options there are that sound as good (or better)... suggestions?
tripg
Primare A34.2 or A60, which has a DAC.
http://www.primare.net/product-list.asp?m=1

I'd surely place these on my must-demo list; but I don't think you'll find any used A6s yet.

Wow! So many suggestions... thank you all for your thoughts and information. I've got some serious researching to do!

Question regarding Ayre: one common theme in many reviews is "bass shy". What are your thoughts? Bass is an issue in a small room, so "bass shy" is extra concerning. 


@jackput

do you have any experience with other Audio Research amplifiers? If so, can you describe any sonic comparison?

I have a vt100, and have a friend with a D200.
The Absolute Sound recommended the Goldmund designed NuForce STA 200 at $1299. It is currently priced for $499 at Audio Advisor, which has a generous trial policy (AA also carries the NuPrime STA 10 and IDA 16). I think that the unusually high gain of the STA 200 makes it helpful to have a home trial, (especially pairing it with the tube based ARC LS27).