Description
Article no.: 864
Graph Tech PRL-8411-C0 RATIO Locking Tuners for Acoustic Guitar (3+3)
• Ratio Machine Heads – Ultimate Control and Precision.
• PRL-8411-C0.
• 3+3 (Three per side tuners)
• Ratios: (From Low E to High E) 39:1, 24:1, 20:1, 14:1, 20:1, 12:1.
• Thumb wheel screw on the back for string locking.
• Chrome finish.
• 2-Pin mounting.
• 4 Sets of InvisoMatch standard mounting plates in brushed aluminum are included.
• Mounting hole diameter: 10 mm.
• Axis diameter: 6 mm.
• Contemporary "Ratio" signature buttons.
Experience a new level of tuning accuracy with the Graph Tech Ratio® PRL-8411 locking tuning machines for acoustic guitar. Featuring patented Ratio® Technology, each string is assigned its own optimized gear ratio, ensuring every tuning adjustment feels equally precise and predictable. The result is faster tuning, greater accuracy, and fewer fine adjustments.
The locking design securely clamps each string in place, improving tuning stability while making string changes quicker and easier. Whether you're performing on stage, recording in the studio, or practicing at home, the PRL-8411 delivers smooth operation and dependable performance.
The set includes modern Ratio® signature buttons and four sets of InvisoMatch® mounting plates in brushed aluminum, allowing installation on a wide range of guitars with minimal or no modification.
• Ratio Machine Heads – Ultimate Control and Precision.
• PRL-8411-C0.
• 3+3 (Three per side tuners)
• Ratios: (From Low E to High E) 39:1, 24:1, 20:1, 14:1, 20:1, 12:1.
• Thumb wheel screw on the back for string locking.
• Chrome finish.
• 2-Pin mounting.
• 4 Sets of InvisoMatch standard mounting plates in brushed aluminum are included.
• Mounting hole diameter: 10 mm.
• Axis diameter: 6 mm.
• Contemporary "Ratio" signature buttons.
Experience a new level of tuning accuracy with the Graph Tech Ratio® PRL-8411 locking tuning machines for acoustic guitar. Featuring patented Ratio® Technology, each string is assigned its own optimized gear ratio, ensuring every tuning adjustment feels equally precise and predictable. The result is faster tuning, greater accuracy, and fewer fine adjustments.
The locking design securely clamps each string in place, improving tuning stability while making string changes quicker and easier. Whether you're performing on stage, recording in the studio, or practicing at home, the PRL-8411 delivers smooth operation and dependable performance.
The set includes modern Ratio® signature buttons and four sets of InvisoMatch® mounting plates in brushed aluminum, allowing installation on a wide range of guitars with minimal or no modification.
Files and media
 | Installation Guide |