Amongst highest output amplifiers in this price range, with a decent quality output

After 1/2 hour of driving it hard (gain~=4/5) into single (bridged) 3ohm sub, gets extremely hot (as in cannot hold hand against for more than few seconds), mounted in boot in 32+ degree celcius temperatures

Excellent price
Gets very (too?) hot -- protection doesn't kick in so ~may~ be normal

Similar Products Used:

Alpine 3502 (60W), sound quality into my 100W components appears equivalent