The volume of the Piezo bridge on your Core Piezo guitar is adjustable in two ways. There is a small trim pot on the PC board that can adjust the total volume of the bridge, as well as 6 individual trim pots to change the volume of each saddle or string independently.
Clockwise adjustments will increase the volume of the bridge or saddle output, and counter-clockwise adjustments will decrease it.
Adjusting Overall Bridge Volume
Before accessing the PCB, the battery compartment must first be removed.
To access the BRIDGE VOLUME trim pot, remove the six (6) mounting screws for the Piezo jackplate and carefully remove the PC-board from the guitar. The adjustable trim pot is located next to where the red and black battery leads connect to the PC board.
Adjusting Individual Saddle Volume
To access the SADDLE or STRING VOLUME trim pots, all you need to do is remove the battery compartment. There are six individual trim pots in a line that can be adjusted to change the volume of each Piezo saddle.
The volumes of the Core Piezo bridge and the saddles have been set at the factory, but they can be adjusted to meet your personal tastes. If adjustments are necessary, we advise making incremental adjustments using a small Phillips-head screwdriver.