2. amps-preamps
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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
glennewdick's avatar
glennewdick
1,719 posts
 

Also the main force that controls the speakers is Damping factor not how much power you have.

Definition. Amplifier damping factor (DF)is defined as “the ratio of the load impedance (loudspeaker plus wire resistance) to the amplifier internal output impedance.” This basically indicates the amplifier's ability to control overshoot of the loudspeaker, i.e., to stop the cone from moving

so you wont necessarily need more power. like my self and gdnrbob said try a smaller quality amp you will be surprised.

glennewdick's avatar
glennewdick
1,719 posts
 

https://en.wikipedia.org/wiki/Damping_factor


4425
861 posts
 
I like the latest Krell amps very much and they can be bought here for very good prices. True high performance audio. Class A bias with rear fans that are VERY quiet. Some serious engineering went into these amps and they look pretty good in person. Compared to Pass 250.8 and could have gone either way. Truly. I very much like a higher biased amp. Purchased an Agostino Momentum Stereo amp and it runs very hot but sure is good. Do look at the Krell. 
giri
39 posts
 
I have YBA amps (signature mono locks and 2 delta). They are barely warm including their heat sinks/fins after playing 6-8 hours. They are very rare to find (French made). I don't know much about the chinese version if they run cool. By the way, I live in Phoenix and don't want any thing that gets hot! 
Giri
biketech60
51 posts
 
Tripg ,
Buying used saves money if you're going to sell it later . If you can audition the 250 Watt Gilmore Audio Raven stereo class D amp at $1750 new , you may want to keep them . I bought his mono block Raptors with identical specs , save power , and these are as fine as the best I know .They are special and work with all music and should drive any speaker, including Magnepans very well . I've used passive volume control and now a tube preamp and either works well .. They run cool to the touch always and are heavy, although only 12 inches square . Mark Gilmore is a joy to deal with . My two cents' worth , since you asked .. 
 Joe
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