hey guys! i need some advice on a four speakers system and an amp for a pontoon boat. i've got a boss mr1515 stereo and was thinking about adding four mmc 650 and a amp. also the speakers will be mounted at the base of the seats. does this sound like a good set up so far? will the mmc650 sound good with the seats acting as a box? what is the smallest, most affective amp i should run? will i be able to run one battery? thanks for any help! ! ! ! ! ! ! !