The MixPot 1 is a miniature onboard pickup mixing preamp, mounted to the underside of a balance pot (center click). The preamp allow to combine Piezo and magnetic pickups, two magnetic pickups or two Piezo pickups without any additional outboard signal routing electronics.
Two independent channels allow to preset (trimpot) the amount of the boost up to +18dB. You can expect 800 hours of solid operation from a single 9V battery. Adding an additional 9-Volt battery (18V) will ensure more headroom and longer battery life.