I have 4 JL 3way 6*9's in the tower and a kove 12in sub under the drivers seat running off a soundstream 880W amp it sounds sooooo good I was kinda worried at first but now I am stoked.My buddy has the same boat as me and he is running 4 12in subs and 4 6*9's in the tower they are MTX (i think) he has a little more bass but it is not as clean as mine .I think mine sounds alot bettter .I also have 6 -6 1/2in arc audio speakers in the boat and they are loud as hell ,I was going to get the JL's but the arc's sound better,they are louder and in a boat thats what u need .The JL's probally would have sounded better in a car they had more mid bass
but in a boat with all the open are uu want highs
bass is supplied by the 12 and tower speakers
whats the name of the company anyways???
I know u can get better stuff than this but for the price and what u get its hard to beat
oh ya my 880watt amp was $350 and the 320watt was $ 240 or so
hope this help's bro