Anybody have experience with the stuff?? Looking at a sweet deal on their 5 channel marine amp. Already have speakers, 4 mtx 7.7 coaxs and 2 mtx 10" subs. Is says the amp is 1600 watts, but that is probably a major exaggeration, The coax's will be run at 4 ohms and the subs at 2 ohm. Does the fusion stuff work good and hold up?