contact jbl direct mate.... i'm sure they will be helpfull, or can you work it out based on the desired hi-pass freq?
I had an idea for a script once. It's basically Jaws except when the guys in the boat are going after Jaws, they look around and there's an even bigger Jaws. The guys have to team up with Jaws to get Bigger Jaws.... I call it... Big Jaws!!!