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
My Son of Ampzilla 2000 runs very cool!

Has 100 wpc into 8 ohms, 200 wpc into 4 ohms, and will drive a 2 ohm load.

2400 watt power supply transformer, and superb sound.

No longer made.

James Bongiorno's best sounding amp IMO.
I was thinking 8X10 room without furniture is relatively small so you'll probably sit only a few feet away from the gear. One other option, depending on the height of the room, is to put the amplifier on a real high stand as close as safely possible to the ceiling. Won't solve the problem but might help a little bit.
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Your speakers are pretty efficient, so you could probably get away with lower powered amp, say 60-90 wpc, which should have enough headroom for demanding passages.
Perhaps an Ayre AX-7e? or a McCormack Micro Drive?
I am running a pair of Zu Omen Bookshelf speakers with both amp/integrated. The Ayre seems a little bit warmer than the McC, but has wonderful clarity.
B