Precision tuning meets innovative design with the PRN-2411 right-handed acoustic guitar machine heads, featuring RATIO® calibration technology for superior tuning accuracy. This professional-grade tuning system utilises a 3-per-side configuration, making it ideal for standard acoustic guitar headstock layouts.
The PRN-2411 features a robust two-pin casing design that offers versatile installation options. You can mount these machine heads directly as supplied, or take advantage of the included Patented InvisoMatch Mounting Plates for a more streamlined installation process.
Four different sets of InvisoMatch mounting plates in brushed aluminium finish are provided with each PRN-2411 set. These plates are specifically designed to work with your guitar's existing screw mounting holes, ensuring fast and accurate installation across most acoustic guitar models without the need for additional drilling or modification.
- Gear ratio: unique for each string position - one turn-one tone
- Peg holes diameter required: 13/32" (10mm)
- String post diameter: 0.236" (6mm)
- String post length to string hole: 0.910” (23mm)
- Weight per single machine head: 0.083lbs (38g)
- Weight per set of six: 0.496lbs (225g)
- String diameter up to 72 gauge
- Includes 6 machine heads, mounting screws and bushings
- Includes complimentary 4 sets of aluminium mounting plates
- 40 Watts (2 x 20 in Stereo)



