Graph Tech Introduces Bass Ratio Machine Heads

Among the latest additions to the GRAPH TECH Ratio brand, the innovative Bass Ratio machine heads are each calibrated to a gear ratio, so each string feels and reacts the same to any tuning adjustment. This synchronized system makes tuning and re-tuning the bass faster and more intuitive.

“I didn’t know tuning my bass could be a recognizably better experience. I love Ratios, and they’re so smooth!” said Nicole Row, bassist for Panic! At the Disco.

They’re the world’s first bass machine heads to use a double envelope gear design with a hardened steel gear to ensure smooth consistency on the higher ratios. For example, from low B to C on a 6-string, small-diameter post, the gear ratios are 48:1, 36:1, 30:1, 20:1, 18:1 and 16:1. One full rotation of any Bass Ratio key results in approximately one full tone pitch change. Each machine head is amazingly smooth and super strong, and provides an unparalleled tuning experience.

The Bass Ratio product line is comprised of seven sets of machine heads, allowing for customization based on number of strings (4-, 5-, or 6-string bass) and tactile preference, including both Y-style and classic clover leaf chrome buttons.

About Graph Tech Guitar Labs

Graph Tech invents, designs and manufactures cool, new and useful guitar products. Founded more than 35 years ago, the company is behind some of the world’s most recognized products and brands in the music industry, and has over 50 patents and trademarks around the world. Graph Tech’s 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