when i installed my stereo, i was looking mainly for great sound outside of the boat when at the sandbar or the channel. i installed my deck in the dash, because the hole was already there. i put a forward facing sony XPLOD 12( octagon shaped ) in a ported box. 1300w. i installed two 6x9's in front of the driver and passanger buckets. ialso put two more 6x9's under the bench seats that run lenght wise behind the front buckets. the downfall is that they are at the floor. then i installed two 4x6's under the rear jumpseats, also at the floor. i put more speakers with more power to accomidate the poor mounting locations that i had no choice about. i a,m running a 1200w amp, only running to the sub. my stereo, i am proud to say, sounds awsome. my boat does about 78 mph, and i can hear the stereo at wide open throttle. granted i dont have an open engine, it is still a 700HP Papp motor. at the channel you can clearly hear it 5 boats over and understand every note and word. i think that i got lucky with the sound quality considering my crappy options for mounting locations