Need some advice\input, Looking to build an outdoor\patio subwoofer enclosure and find a suitable subwoofer to put in it. I am completely new to outdoor audio, my initial thoughts were a marine subwoofer and a birch box doused in resin and truck bedliner? Again, TOTALLY new to all of this so i may be way off. Whatever the sub and enclosure material, they will both need to stand up to the very muggy, hot central indiana summer weather. Sealed or possibly PR enclosure, Will be powered by a dayton 150 watt amp. Any and all input is greatly appreciated, thanks.