The volume of the Piezo bridge on your CORE Hollowbody Piezo guitar is adjustable in two different ways. On Core Piezo equipped guitars, there is a small trim pot on the PC board that can adjust the total volume of the bridge, or there are also 6 individual trim pots to allow you to change the volume of each saddle or string independently.
To access the BRIDGE VOLUME trim pot, carefully 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.
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 flathead or Phillips-head screwdriver. Clockwise adjustments will increase the volume of the bridge or saddle output. Counter-clockwise adjustments will decrease the volume of the bridge or saddle output.