I recently noticed a pair of these JVC speakers (110 W subwoofer, 60 W main) just lying around in my garage and I thought it’ll be pretty cool to build myself a custom audio amp with crossover filtering for these speakers. Most audio amps on Amazon didn’t seem to come with any crossover filtering or a bluetooth module, so I decided this would be a good opportunity to hone some of my PCB design skills while making the exact audio amp I want. I added a crossover circuitry that uses a Sallen-Key Butterworth 4th order design for both the active low pass and active high pass filters. I based most component selection around what JLCPCB carry in-house so I wouldn’t have to assembly the PCB myself. Overall, the sound quality is pretty damn good. 

The complete design can be found on my github here.