Graph Tech Ratio Tuners

RATIO® patented gear technology

RATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation.

From Low B to C - 48:1, 36:1, 30:1, 20:1, 18:1, and 16:1.

 

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. 

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