- Hosco SOS-CG1 Nut Compensation Classical Guitar; S.O.S. Nut compensation for Classical guitar; Significantly improves intonation; Shims included to compensate for nut height; Easy to fit - the S.O.S. strip is simply slid under the strings in front of the nut; Scale length 640-650mm; S.O.S. thickness (6th/1st) : 1.6mm/1.6mm EUR 12.00 - See more - Buy online