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.
Patch -
Ancient Chinese secret. .. mount the speaker upside, down, so the voice coil is up and doesn't hit the cross bar you described.
No shaving, trimming, cutting, anything but a beverage, required.
Jim
4 Wheels Move the Body
2 Wheels Move the Soul
In Loving Memory of My Brother
"Death Waits In The Dark"