Well, I drug out my boat (Sea Ray 200BR) that had been sitting for 4 years and started the repair and refb process. Mechanical repairs are almost done and Im starting on the interior next, so I thought why not put a respectable system in too. I have a good sub amp, an older Zapco ref 750.2 to use with 2 10's. Now I need to come up with a decent 4 channel amp to run two sets of comps. In a boat, size is an issue but I dont think great specs are that important. I'd like to get decent power for the buck, but I dont want to feel bad about putting a good amp in an environment that may trash it with moisture. Yet dedicated Marine amps dont advertise much power. Im toying with a Lanzar vibe series 4 channel. Good prices, doable specs for an open environment. Any feedback on these?