Built by the world’s leading acoustic brand, Martin SP strings deliver strength, clarity, and consistency. Manufactured in Martin’s dedicated Mexican facility, every set is precision-made and sealed in long-life flow-wrap packaging for freshness.
At the core is high-tensile, tin-plated steel for added durability and corrosion resistance, with premium bronze alloys (Phosphor or 80/20) providing bold, punchy tone across all frequencies.
Lifespan 2.0 coating protects both core and wrap wire from corrosion without affecting feel or tone — giving your strings longer life and lasting clarity.
| Brand | Martin |
| Collection | Authentic Acoustic / Lifespan |
| Set Gauges | 12, 16, 25w, 32w, 42w, 54w |
| Wrap Material | Phosphor Bronze |
| Coating | Lifespan |
|
Construction |
Round Wound |
|
Core Shape |
Hex Core |
|
Trebles |
Plain Steel |
|
Anchor |
Ball |