Seeking Great Cool Runnin' SS Amp...

You might consider the cool running Consonance amps from Opera Audio. These received rave reviews and much attention at the recent Consumer Electronics Show.The 80 watt version will work nicely but if you listen at loud levels the 100 watt amp is a safer bet with your 86 db sensitive Proacs. The Consonance amps are similar to your Proacs in that they provide good detail, clarity and excellent soundstaging.They are a great mix with tube preamps.I understand your energy concerns as I also live in Arizona. Using an excellent power cord such as the Sahuaro Audio will actually reduce your amp temperature 6 to 12 degrees. Another suggestion is to run an overhead ceiling fan on low to add cooling. This should not degrade your sound quality much if at all. All of these products are in the middle to lower end of your price range. Overall, you will find the Consonance amps to be much more natural and musically involving than many of the amps mentioned.You can contact me for more information.
AudioLon

i have the Odyssey monoblock amps. I leave them on all the time and they are very cool to the touch, even at loud volumes. great pair of amps. I prefer these to the mcintosh amps i have owned, and to the classe, plinius, sim audio, etc... that i auditioned.

Jeff Rowland model 10 runs cool .

The digital amps run the coolist, Spectron, PS Audio, Bel Canto, etc.

Without a doubt the coolest running amp at close with fantastic tube like qualities is the Harmonic Precision 110. I have them and the lack of heat is phenominal. They are more than 97% efficient. Despite the power rating I am running Revel Studios with them and the dynamic output is fantastic. Large room and as they have broken in I have had to continue to lower the volume on the preamp and I like loud. I have the Rowland MF 5600 on another system and while I think it has a really sweet sound must say it runs really hot. Check out Haronic Precision at www.audiopoints.com.