By JBL fanatics. For JBL fanatics.
We've heard the difference that a modernized crossover can make in our own vintage JBL systems, and we want to make it as easy as possible for DIYers to breathe new life into their own speakers.
Save yourself the hassle of plywood, hot glue, and point-to-point wiring. Our high-quality PCBs, detailed instruction manuals, and parts list make it easy to upgrade your speakers.
Fully compatible with factory crossovers.
Following our provided parts lists yields an updated crossover with voltage drives equivalent to the factory crossovers.