diditmyself
100+ Head-Fier
- Joined
- May 22, 2009
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A class A amplifier is inefficient by nature and single end is the least inefficient of them all, so these kind of amps will generate some heat. Besides being ininefficient, a single end amp can't operate in class AB, so you'd want some margins which will make it even hotter. Since you don't need that much power driving headphones, this is no major problem in a stationary amp. Just use a proper heatsink.