Gibson Accessories MODERN STRINGS PHOSPHOR BRONZE ACOUSTIC GUITAR MEDIUM
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What you need to know
What you need to know
- Phosphor Bronze : bright attack, precise definition, and natural warmth for a true acoustic sound.
- Authentic Feel : uncoated strings for direct touch and immediate response under the fingers.
- Total Versatility : a balanced tone suitable for fingerstyle, strumming, and pick playing.
- Designed by Gibson : developed and tested under the guidance of Gibson master luthiers (Bozeman, Montana).
Manufacturer Information
Gibson Accessories
https://www.gibson.com
Service.Europe@gibson.com
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Algam SAS
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A "medium" gauge for more body, projection, and sustain
With their medium gauge, the Gibson Phosphor Bronze Acoustic Guitar Strings provide extra power and stability, ideal for guitarists seeking stronger projection, more pronounced bass, and better pick resistance. The phosphor bronze highlights clarity and harmonic richness while maintaining a sustained warmth that enhances both open chords and driving rhythms.
Technical specifications
| Category | acoustic | Nbr of strings | 6 |
| Draw | 13-17-26-35-45-56 | Material | steel |
| 1st cord pull | 13 | ||
| Type | acoustic guitar strings | Sound | bright attack, sustained warmth, overall balance |
| Alloy | phosphor bronze | Development | under the guidance of Gibson master luthiers |
| Coating | none (uncoated) | Tested by | Gibson team (Bozeman, Montana) |
Questions frequently asked
What is the gauge of the Gibson SAG-PB13 strings?
The set uses gauges 13-17-26-35-45-56, with a first string of .013. This medium gauge favors power and pick attack retention.
Are these 13-56 strings suitable for an acoustic guitar?
Designed for acoustic guitar, this set includes 6 steel strings. The 13-56 gauge provides more pronounced bass and a clearer projection.
What tone does phosphor bronze provide?
The phosphor bronze alloy combines a bright attack with sustained warmth. Harmonic richness and overall balance are emphasized.
Are the Gibson Phosphor Bronze Medium strings coated?
These strings have no coating.
Who is a medium gauge 13-56 intended for?
This model suits guitarists seeking greater pick resistance. Strong rhythms benefit from the stability associated with the medium gauge. Development was conducted under the guidance of Gibson's master luthiers, then tested by the Gibson team in Bozeman, Montana.



