The simple genius behind RATIO® multi-geared machine heads for guitar
RATIO® Machine Heads provide high-performance tuning for your guitar. Each string has a unique gear ratio tailored for its core tension, ensuring precise tuning. RATIO’s patented technology offers individual tuning gears for every string, allowing for fine adjustments on thicker strings (like the G and Low E) and coarser tuning on thinner ones, with ratios ranging from 12:1 to 39:1. With RATIO® installed, one full turn of the knob equals about one tone for each string, making tuning fast, precise, and intuitive.
The fastest, most precise tuning in the universe!
Experience the difference — Try RATIO® Machine Heads for guitar today!
Install RATIO® faster, without having to drill or fill holes with InvisoMatch® Adapter Plates!
InvisoMatch® Adapter Plates for RATIO® Tuned Machine Heads are the easiest approach to installing RATIO® Tuned Machine Heads on your guitar. Simply select the installation plate design that matches the screw/pin hole location of your factory installed machine heads, then just use the existing screws holes, no holes to drill or fill. You’ll be up and running within minutes, with perfectly installed and aligned set of RATIO’s . Stay classy you axe master.
Predictable, precise tuning, retuning and open tunings
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. Open tunings have never been easier. String gauges such as light top, heavy bottom are no problem with RATIO®; they still do the same precision tuning..
Not just another machine head
RATIO® is more than just another entry into the machine head market. Instead, RATIO® has reinvented how machine heads function with the musician.
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Graph Tech has created some of the world's most recognized products and brands in the music industry
The list of industry firsts include the world's first self-lubricating nut in 1983, String Saver Saddles the first saddle to drastically reduce string breakage, TUSQ man-made ivory, and Ratio machine heads.
