Bi-amp Board Set for JBL 4300 Series 4-way Models JBL 4300 Series which contains full parts lists

which contains full parts lists for each of the supported systems

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

The Bi-amp board set comes with 2 main boards

which can be found at Solen's website here

making them an easy solution for upgrading your existing system

Bi-amp Board Set for JBL 4300 Series 4-way Models JBL 4300 Series which contains full parts listsBi amp configurations only! For full passive configurations, please purchase the Full Board Set. If you've previously purchased the Bi amp board set and want to convert your system to full passive, please purchase the Auxiliary Board Set. Pair of 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