I once saw a home-made bandpass with two different subs on an amp that you cannot find anywhere online (Brand name or anything), The thing wasnt sealed anywhere. he has wires coming out of the bandpass ports which were stuffed with some cloth of some sort. he thought it bumped rather nicely. I kept my compusre as he was showing it off but almost shit my pants laughing after he left.
Not to mention the plexiglass that was very badly cut and screwed in on top. I have yet to find a bigger idiot. The funniest part is he says he competes with it. //content.invisioncic.com/y282845/emoticons/omg.gif.05aa02c3095d6ce9338996654eca0863.gif