- S.O.S. Sound Offset Spacer for Acoustic Guitars
- S.O.S. improves the intonation at each fret
- Easy installation to your guitar
- Installs next to string nut
- No permanent guitar modification
- Scale: 643-650mm
- 42.5 x 3.5 x 1.3
MTS is a new method to offset the string pitch for fretted instruments. MTS derives the accurate offset value from instrument's string height, scale, and stress of each string.