So it sounds like there's a tremendous gain in output and mid bass. That's just what I'm looking for, lol. I got the cabin area sounding pretty full now with the addition of bow and side cup area speakers but I'd like to step up the tower speakers for when I'm boarding or floating in the water. Unfortunately I'll probably have to wait till next season cause those Rev 10's aren't cheap, and I'm sure my Arc Audio KS 300.2 probably won't push them. Thanks for the info Wylie_tunes.