Good deal for the money. I don't know if it's "waterproof" but I hid it under my RZR's dash so we'll see in time. Installation is as easy as any other amp, I use the bluetooth part, no inputs etc and it works fine. The sound quality is good. The only complaint is that one of the output screws snapped off when first tightened, so I was a little worried about the physical quality. Time will tell, in my opinion, a good buy! Oh and I use x2 Boss Audio Marine mrwt40 4" 200 watt tower speakers and they sound just as good as for 4".
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