RATIO® patented 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 balanced the gear ratios to each string simplifying the tuning process.

With RATIO®, a half-turn is a semi-tone!

Every string reacts the same to any tuning adjustment. Predictable, precise tuning, on every string.

 

The PRN-8411 and PRN-8441 are right-handed sets of Locking RATIO® Calibrated Machine Heads for acoustic guitar that use 3 per side tuners.

It has a two-pin casing that can be used as is, or with our Patented InvisoMatch Mounting Plates [].

4 different sets of InvisoMatch mounting plates in brushed aluminum are included to make installation on most guitars fast and accurate by using your existing screw mounting holes.

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
Brand
  • Graph Tech Guitar Labs Ltd.
Model
  • 3+3 Ratio Locking Guitar Machine Heads (Select Finish and Button Style) - Chrome /
Finish
  • Vintage
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Graph Tech Guitar Labs

Delta, Canada
Sales:275
Joined Reverb:2021

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