Description
Most tuning machines treat every string the same, even though a wound low E and a plain high E don’t respond the same way to a turn of the peg. Graph Tech’s RATIO tuners fix that by calibrating each gear individually to its string, so the tuning feel is consistent across the whole set.
These are 3+3 acoustic tuners with a gold finish and skeleton button design, built around Graph Tech’s patented RATIO technology. The gear ratios run from 39:1 on the low E down to 12:1 on the high E, with 24:1, 20:1, 20:1, and 14:1 covering the strings in between. That spread means a half-turn of any peg equals a semi-tone, no matter which string you’re tuning.
- Patented RATIO calibrated gearing, matched per string
- Gear ratios from low E to high E: 39:1, 24:1, 20:1, 14:1, 20:1, 12:1
- 3+3 configuration for standard acoustic headstocks
- Gold finish with skeleton-style buttons
- Predictable, even tuning response across all six strings
The result is fewer surprises at the peg: what feels like a small adjustment produces a small, predictable pitch change every time, whether you’re bringing a string up from way flat or making fine intonation tweaks on stage. If your current tuners feel inconsistent from string to string, this is exactly the problem RATIO was designed to solve.





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