Our Preamp+Boost is the fantastic, now discontinued DOD FX10 Bi-FET preamp. This pedal is suitable for any instrument, giving you up to 17 dB of clean boost and a tone control that functions as a bass boost when left of center or a treble boost right of center. 
 
This is the same circuit as the original, with the only difference being we are using true bypass, where the original had buffered bypass. 
 
Each pedal is  hand built using high quality capacitors and resistors, and a Pro grade footswitch for years of trouble free use. Bench tested and satisfaction guaranteed. 
 
Power: 9V DC tip negative (-)