The PRN-8411, PRN-8441 are right-handed sets of Locking RATIO calibrated machine heads for acoustic guitar that use 3 tuners on each side. It has a two-pin housing that can be used as is or with our patented InvisoMatch mounting plates. 4 different sets of brushed aluminum InvisoMatch mounting plates are included to make installation on most guitars quick and precise using your existing screw mounting holes.

Specifications

• Patented RATIO Gear Technology: RATIO – Calibrated machine heads incorporate different string gauges into the tuning equation.
• From low E to high E 39:1, 24:1, 20:1, 14:1, 20:1, 12:1.
• We have balanced the gear ratios for each string simplifying the tuning process.
• With RATIO, a half turn is a half tone!
• Each string responds the same to any tuning setting. Predictable and precise tuning, on every string.