I have a 21' bowrider and plan on redoing the stereo system. Getting a
marine Amp, Subwoofer, Headunit, 4 speakers.

Question:

I plan on getting a 6 channel AMP anyone have any experience on mounting, as
far as where? I was going to put it in a compartment that really doesn't
get airflow but is somewhat ventalated, does the amp need alot of constant
airflow? The subwoofer is going to be in an enclosure and non-powered.

Any help is appreciated.