Korpa 
Schaller-patented vintage-style bass tuner. State of the art, highest precision, counterfort-mount. Gear ratio 1:20.
All parts are precision-crafted and surface-finished, the self-locking drive ensures an even, delicate and steady tuning.
All string posts are made of high-grade brass and fitted into the housing with utmost precision, ensuring the best possible tuning accuracy and wear resistance.
Besides the standard combinations (e.g. 4-in-line or 2/2), all tuner sets may also be ordered with any quantity of left and right tuners.
