Now, the unmatched tuning performance of the patented Ratio multi-geared tuning system is available in a vintage waffle-back compatible design! Tune faster, and with more precision, as each string has its own calibrated gear ratio. Each string has the same intuitive feel. There's no slowing down to tune the Low E or Plain G string, and no spinning the knobs faster for the High E or D string. Ratio machine heads also provide fine tuning for the sensitive strings and a corresponding coarser tuning for the slower-to-pitch strings. This is how machine heads for stringed instruments should always have been made! As with all Graph Tech products, Ratio Vintage Style, Waffle-Back machine heads come with a 45-Day Love It or Return It Guarantee. 

THE SIMPLE GENIUS 

BEHIND RATIO® SYNCHRONIZED MACHINE HEADS

Ratio machine heads are calibrated to the core thickness of each individual string—meaning that you get fine tuning for thicker-core strings, and coarser tuning on thinner-core strings via gear ratios from 12:1 to 39:1. Every string feels and reacts the same to your tuning adjustments. With Ratio®, one turn is about one tone change on all strings, making tuning, retuning and exploring open tunings easier, quicker and more intuitive.


PREDICTABLE, PRECISE TUNING AND RETUNING 

Ratio® tuning feels natural. You don't have to think about which string you are tuning because they all feel and respond the same. No more overshooting the Low E or plain G. No more twisting away on the High E or D string. Retuning to explore open tunings has never been easier. In addition, using popular light top, heavy bottom string gauges are no problem with Ratio®, as each string gets the same precision tuning.


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NOT JUST ANOTHER MACHINE HEAD

Ratio® machine heads make tuning a pleasure. Every time you turn a Ratio® machine head it feels natural, easy, and intuitive. Now, you can experience the performance-enhancing Ratio® technology on vintage instruments. Stay Vintage but don't tune your guitar like it's 1957!

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