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Low heat alternative to FIRSTWATT J2 ?

Any Gainclone or Class D or battery power alternatives available? I like the crazy good micro dynamics and rhythmic cohesion of the J2. My speakers are 93db full range. Also interested in AMP/DAC combinations like the devialet or NAD D7050 that meet the J2 performance (those 2 mentioned don't)
zuio
aberyclark
594 posts
 
Uncola.....was it the fact that the heat became unbearable in the room or the fact you were worried about overheating the amp itself? I just can’t see how an amp can overheat the room with heat. 
uncola
41 posts
 
No not worried about the amp overheating itself, the room became unbearably hot after a couple hours with the amp on if I had the door closed
kosst_amojan
2,095 posts
 
@charles1dad 
I'll say it again... 
ALL modern Pass Labs amps use negative feedback. 
The FW amps are a mixed bag. Some have none, some use negative feedback and one uses negative and positive feedback. 
charles1dad's avatar
charles1dad
6,996 posts
 
OK, I see you are making the distinction between Pass Labs and Nelson Pass's designs which would include First Watt. No problem. The F. W. are definitely a mixed bag of circuit ideas by him.
charles
kosst_amojan
2,095 posts
 
Yep. The FW amps are very unusual animals. I LOVE my F5 though, and that IS an amp that runs hot. Base of the sinks hovers just under 60C. It’s warming up right now.
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