Low heat alternative to FIRSTWATT J2 ?

"01-13-15: Keithr
Just a small correction- the J2 does have negative feedback."

I didn't know that. I thought all Pass amps were 0 feedback. Thanks for the info.

Talking about Pass amps and heat, I just remembered that one of my Pass amps burst into flames right in my living room. It was actually kind of funny. But not to worry, it was an Aleph, not a Firstwatt. Most likely the problem is fixed in the newer models.

How hot does the J2 get?

I recently got myself a J2 and they don't get that hot. Less heat than a push pull tube amp. I was very concerned about heat given I live in small NYC apartment. But it's totally manageable. It doesn't heat up my room. Make sure to have the amp in an open space. I can keep my hands on the amp chassis without getting bothered by heat.

How hot does the J2 get?

According to its manual the J2 consumes 200 watts. Since it operates in class A it will draw that amount of power essentially all of the time it is being operated, regardless of the dynamics of the music. So the amount of heat injected into the room will be approximately the same as the heat produced by two 100 watt light bulbs.

Regards,
-- Al

Thats not that hot imo. The way the op was looking for battery powered amps, I was thinking the J2 was burning down the house