JBL 4425 Charge-Coupled Crossover Boards JBL 4300 Series For full passive configurations

For full passive configurations

Pair of auxiliary boards for adding full-passive capability to a system that is already configured with the Bi-amp Board Set

Parts are sold separately

that will come in handy for your upgrade project

Not a standalone product

JBL 4425 Charge-Coupled Crossover Boards JBL 4300 Series For full passive configurationsSet of two high quality printed circuit boards that allow owners of the JBL 4425 Studio Monitors (or those who are building their own DIY clones) to upgrade their existing passive crossovers to modern standards using polypropylene film capacitors, air core inductors, and the charge coupling technique used by JBL in their ultra high end studio monitors such as the K2 S9900 and DD67000. The boards are designed to be installed into the factory crossover