Awesome find. How did you get the magnet to fit on the back side? Did you have to shave that plastic area where the crossbar is on both sides ? I tried to find a 6in speaker on Saturday to replace mine but noticed the magnet butts right up against the plastic liner and won't take a set of Alpine SDS610s. The magnet is about the same size as what those JBLs look to have.

Looks great...can't wait to hear them.