who makes a good 4 channel amp, about 75x4 with the smallest possible physical dimensions? I need the smallest I can find due to lack of space in my boat. Also need a small single or two channel around 500w to power a single sub.

Take a look at Mmats amps high quality and the dimensions are small for the power output.

Uhm shouldn't you be worrying about the engines

Scott, engines are done waiting on a boat
going tonight to have a little "persuasive" talk w/ upholstry guy

Coming to Bucyrus tonight?

TB yeah, I am planning on it unless something comes up.