TPJ Posted March 19, 2017 Posted March 19, 2017 (edited) John East BTB onboard preamp with push/pull passive tone control. First stack is vol/blend, second stack is bass/treble with pull for treble boost, third is tone control that works in active and passive mode. It's also a push/pull that switches the preamp between active or passive. Comes with black knobs. I detached the battery clip when I installed it as I had a battery box on the bass but will include the clip. You'll need to download a wiring diagram as I can't find the original but it's a pretty striaght forward install as are most of John's preamps. £80 posted. No trades, thanks. Sold now. Edited March 23, 2017 by TPJ
Recommended Posts