i think you both have valid points. although, with the power i'll be running, i don't think the amps will heat up THAT much. and the MOSFETS are screwed into the heat sinks, so wouldn't the transfer of heat be primarily from the transistor to the heat sink? or will the heat transfer to the circuit board instead.
also, the alpines do have protection circuitry, so at least i am covered if they do overheat.
i also have some cooling fans. i could hook up a thermostat and a relay to turn the fans on when the temp reaches a certain level. with the fans circulating the air around the amps, mounted upside-down, with only about 160 watts per amp, i think it still might work.
of not, i'll try some rendition of kai's install...
