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JBL 43XX Charge-Coupled Crossover Circuit Boards (4343, 4344, 4345, 4355, etc.) For Sale


JBL 43XX Charge-Coupled Crossover Circuit Boards (4343, 4344, 4345, 4355, etc.)
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JBL 43XX Charge-Coupled Crossover Circuit Boards (4343, 4344, 4345, 4355, etc.):
$379.99

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, air-core inductors, and the charge-coupling (biased capacitor) technique used by JBL in their ultra-high-end studio monitors such as the DD67000.

The Full Board Set comes with 2 main boards and 2 auxiliary boards, supporting bothfull passive (single-amp) and bi-amp configurations. Detailed PDF documentation is provided with purchase of the boards, which contains full parts lists for each of the supported systems, as well as instructions on how to assemble the boards and integrate them into your system.

NOTE THAT COMPONENTS ARE NOT INCLUDED. THIS LISTING IS FOR PRINTED CIRCUIT BOARDS ONLY. Use the parts list to procure components for your speaker configuration.

  • 2mm thickness for extra rigidity under the weight of the heavy crossover components
  • 2oz copper plating for high ampacity and low trace resistance
  • Leaded HASL finish
  • Clearance holes for zip ties to hold inductors in place
  • Footprints included for swapping out L-pads with fixed resistor attenuator pads
  • To view the documentation, parts lists, and learn more about our products (and better pricing), visit our website.



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