CRT Coated Phosphor Bronze Acoustic Guitar Strings

Phosphor bronze with corrosion-resistant technology. The same warmth and feel as uncoated, with a longer usable life.

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S.I.T. CRT Coated Phosphor Bronze Acoustic Guitar Strings – 10–47 (CP1047 Extra Light)
CRT Coated Phosphor Bronze Acoustic Guitar Strings – 10–47 (CP1047 Extra Light) Sale price$14.99
S.I.T. CRT Coated Phosphor Bronze Acoustic Guitar Strings – 11–52 (CP1152 Pro Light)
CRT Coated Phosphor Bronze Acoustic Guitar Strings – 11–52 (CP1152 Pro Light) Sale price$14.99
S.I.T. CRT Coated Phosphor Bronze Acoustic Guitar Strings – 12–53 (CP1253 Light)
CRT Coated Phosphor Bronze Acoustic Guitar Strings – 12–53 (CP1253 Light) Sale price$14.99
S.I.T. CRT Coated Phosphor Bronze Acoustic Guitar Strings – 12–56 (CP1256 Bluegrass)
CRT Coated Phosphor Bronze Acoustic Guitar Strings – 12–56 (CP1256 Bluegrass) Sale price$14.99
S.I.T. CRT Coated Phosphor Bronze Acoustic Guitar Strings – 13–56 (CP1356 Medium)
CRT Coated Phosphor Bronze Acoustic Guitar Strings – 13–56 (CP1356 Medium) Sale price$14.99
S.I.T. CRT Coated Phosphor Bronze 12-String Acoustic Guitar Strings – 10–47 (CP12-1047 Light)
CRT Coated Phosphor Bronze 12-String Acoustic Guitar Strings – 10–47 (CP12-1047 Light) Sale price$24.99

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About CRT Coated Phosphor Bronze

CRT Coated is phosphor bronze with Corrosion Resistant Technology. The treatment protects the string from sweat, moisture and buildup, so a set holds its tone and feel for longer. Nothing else changes: the same phosphor bronze wrap over a hard-tempered hex core, the same warm highs and full low end.

It earns its place if you play often, sweat a lot, live somewhere humid, or simply resent changing strings. Acoustic guitars are also the ones most likely to sit out on a stand between sessions, which is exactly where a coated set pays for itself. Uncoated phosphor bronze still feels fractionally more open to some players, which is why we make both.

Choosing a gauge

.012–.053 (CP1253 Light) is the balanced starting point. For an easier feel, .010–.047 (CP1047 Extra Light) is the lightest, with .011–.052 (CP1152 Pro Light) between the two. For a light top over a heavier bottom, .012–.056 (CP1256 Bluegrass) is built for flatpicking, and .013–.056 (CP1356 Medium) is the heaviest six-string for maximum volume. Twelve-string players have .010–.047 (CP121047 Light).

Gauges

Set Gauges
.010–.047 — CP1047 Extra Light .010 .014 .023 .030 .039 .047
.011–.052 — CP1152 Pro Light .011 .015 .022 .032 .042 .052
.012–.053 — CP1253 Light .012 .016 .024 .032 .042 .053
.012–.056 — CP1256 Bluegrass .012 .016 .026 .035 .045 .056
.013–.056 — CP1356 Medium .013 .017 .026 .035 .045 .056
12-string .010–.047 — CP121047 Light .010 .014 .023 .030 .039 .047
.010 .014 .009 .012 .018 .027

On the 12-string set the first line is the main course and the second is the paired course — unison on the top two strings, octaves on the bottom four.

How CRT Coated compares to our other acoustic sets

CRT Coated is the long-life option. Phosphor Bronze is the same wrap uncoated. Golden Bronze 80/20 is brighter and crisper, Royal Bronze fuller, and American Roots Monel drier and more vintage. Semi-Flat Silencers 80/20 cut finger noise rather than extending string life.

Made in the USA.