A30A gets quite hot after a few hours, even if not working, but last weekend I was away from home and forgot to turn it off so I was very concerned about it.
Surprisingly, after three full days the temperature was apparently the same, it's hot but not untouchable, if I must guess I'll say like 45 to 50 Celsius degrees, maybe 60-ish at worst.
Just for my curiosity, is there anyone with engineering skills who can explain to me the source of heat in this kind of digital amp?
My former class AB amps were not this warm when they were switched on but not in use, the only one that had similar behaviour was heavily biased towards class A, so I sold it because I don't like to waste so much energy (and paying for it).
By the way, when the A30A is hot, it sounds way better, and I'm still impressed by the quality of this amp, so impressed that I suddenly stopped reading reviews of other equipments in the last months, it was a long journey, almost 20 years since my first encounter with a Tripath TA2024, but I think I've finally found my ideal cheap way of listening to music with pleasure.