Hi all! Putting together a budget boat system for the 'Bu. In boat are 4 Kicker 6.5 and a 10" Solo Baric L5 all powered by an Autotek SX-5750 5 channel. Tower speakers (in aluminum bullets) are 4 Polk DB651. In the future I'd like to upgrade to some 6.5 HLCD's. I'm looking for an amp to power...