I mounted them to the t-top of my boat using the provided brackets. They sound really good.
Was out a few months ago for a tournament, seas were stacked up 3-5 feet and the port speaker broke free, took a hard bounce on the gunnel and went into the ocean. Circled around and saw it bobbing around and snagged it.
Re-mounted them solid with bolts going into the inserts on the back and they are both going strong.
Well they certainly proved their water resistance! Great story.
BPA-1, 2 x ERC-2, LPA-1, MPS-1, MPS-2, RPA-1, 2 x UMC-1, 4 x UPA-1, UPA-2, UPA-5, 2 x USP-1, 2 x mini-X a-100, XDA-1, XDA-2, 2 x XPA-1, XPA-2, XPA-3, 2 x XPA-5, XRM-6.1, XRC-5.2, 2 x XRM-4.1, XSP-1, Stealth 6, 8, AirMotiv 4, 5, 6 and a XMC-1 eventually.