Martin Authentic Acoustic® SP® Bass Strings – Phosphor Bronze, Light Gauge | Long-Lasting Tone, Corrosion Resistance & Tuning Stability | 4-String Acoustic Bass Set

92/8 Phosphor Bronze for Rich, Balanced Tone: Designed with higher copper content and a touch of phosphor for a warm, rounded bass tone that stays balanced and present across the frequency range. Light Gauge for Smooth Playability: Gauged at .045, .065, .080, .100, this set provides a comfortable feel with enough tension to support solid low-end response and rhythmic definition. SP Core Wire for Strength and Stability: Built on Martin’s highest tensile-strength core for lasting performance and superior tuning stability under real-world playing conditions. Tin-Plated for Corrosion Resistance: All four strings are tin-plated for added protection against sweat, humidity, and wear—so you get tone that lasts, night after night. Crafted to Martin’s Exacting Standards: Made in-house with the same precision and quality that go into every Martin guitar, these are bass strings you can count on to hold down the groove.