The Classic S series crosses the line between steel string bright and fiber core mellow, with tension suitable for your valuable classical guitar. The Classic S Precisions are soft steel-core strings with highly polished windings, perfect for concert, finger style and folk guitarists. The Classic S Rope Core feature a hybrid core of fiber and woven steel strands for exceptional articulation and sustain. The basses are silver plated flat-wound. The trebles of the KR116 set are nylon tape-wound on rope core. The trebles for the KF110 are plain steel brass plated (e) and silverplated copper flat wound on a steel core (b). (The S series are ball end strings). *the package lists these strings as light tension (compared to steel string sets), but in fact are closer in tension to classical hard tension sets.
 
KN16
E
1st
Nylon Tape Wound on Rope Core
.016
0.40
16.3
7.4
KN24
B
2nd
Nylon Tape Wound on Rope Core
.024
0.60
14.5
6.6
KN25
G
3rd
Nylon Tape Wound on Rope Core
.025
0.63
14.0
6.4
KR23
D
4th
Silverplated Copper Flat Wound on Rope Core
.023
0.58
14.2
6.5
KR31
A
5th
Silverplated Copper Flat Wound on Rope Core
.031
0.80
14.5
6.6
KR39
E
6th
Silverplated Copper Flat Wound on Rope Core
.039
1.00
14.5
6.6