Martin Retro MM11 Custom Light Acoustic Guitar Strings
- Custom Light gauge
- Monel nickel-copper alloy wrap
- Corrosion resistant core and wrap
- 6 individual strings per set
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A monel string set for players who want a warm vintage tone that lets the guitar's wood come through. Gauge numbers are only in the title, so confirm the set before restringing.
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ASIN: B07SH38NM5Category: Acoustic Guitar Strings
Overview
A nickel copper alloy called monel wraps these Martin Retro strings, softening plectrum attack so the guitar's tonewoods carry the sound. The alloy resists corrosion, which helps the set last.
A warm, less brassy tone is why players choose this set over bronze strings. Monel sounds mellower, so anyone after sparkle may find it too soft.
Who it's for
Suited to fingerstyle and vintage minded players who play often. Strummers wanting maximum brightness should look at phosphor bronze.
Pros and cons
- Warm natural tone
- Corrosion resistant alloy
- Softer plectrum attack
- Sounds good plugged in
- Mellower than bronze strings
- Gauge numbers not in specs
- Single set only
Performance notes
Tone depends on the wrap alloy, and monel produces less high frequency attack than bronze. Corrosion resistance slows the dulling that sweat causes. A lighter gauge reduces finger fatigue and makes bends easier.
Specifications
| Brand | Martin |
|---|---|
| Dimensions & fit | |
| Item weight | 20 g |
| Construction & materials | |
| String Material Type | Nickel |
| Material Type | Monel |
| Included components | |
| Included Components | 6 individual strings |
| Other details | |
| String Gauge | Custom Light |
| Set Name | 6-string set |
| Sound Profile | Warm natural tone |
Frequently asked questions
What gauge are the Martin Retro MM11 strings?
Custom Light. Martin also offers extra-light, light, medium-light and medium gauges.
Are Martin Retro strings phosphor bronze?
No. They are made from monel, a nickel-copper alloy.
Do Martin Retro strings work with a pickup?
Martin says they sound good plugged in.
How many strings come in the Martin Retro set?
6 individual strings.