JBL 4425 Charge-Coupled Crossover Boards JBL 4300 Series Bi-amp configurations only

Bi-amp configurations only

that will come in handy for your upgrade project

and the charge-coupling technique used by JBL in their ultra-high-end studio monitors such as the DD67000

Set of four high-quality printed circuit boards that allow owners of the legendary JBL 4300 Series 4-way Studio Monitors (or those who are building their own DIY clones) to upgrade their existing passive crossovers to modern standards using polypropylene film capacitors

JBL 4425 Charge-Coupled Crossover Boards JBL 4300 Series Bi-amp configurations onlySet 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