Martin Era Treated Acoustic Strings - Phosphor Bronze, 13-56 | No Limit Guitar Co, Idaho Falls

The Martin Era acoustic guitar strings represent a bold step forward in phosphor bronze string design, combining Lifespan corrosion protection, Flexible Core construction, and silk-wrapped ball ends into one cohesive package built for tone and longevity. Rich and resonant with vibrant mids, crisp highs, and a broken-in warmth that's present from the moment you first play them, Era strings deliver exceptional feel and clarity at every dynamic level. They're an excellent choice for intermediate to professional acoustic players who demand more from their strings.

Product Overview

The Era string set is wound with phosphor bronze over Martin's Flexible Core construction — a design that prioritizes playability and comfort without sacrificing tonal complexity. Phosphor bronze winding produces the warm, harmonically rich response that acoustic players have relied on for decades, while the flexible core reduces the stiffness that can cause finger fatigue during extended practice sessions or long performances. Players browsing acoustic guitar strings at our Idaho Falls guitar shop will find the Era set strikes a compelling balance between feel and performance.

Martin's Lifespan treatment is applied directly to the string to resist the moisture, oils, and environmental corrosion that cause untreated strings to go dull prematurely. This molecular-level protection extends the life of the strings well beyond a standard uncoated set, keeping tone vibrant and response consistent through weeks of regular playing. For gigging musicians and dedicated home players alike, Lifespan treatment means fewer string changes without sacrificing the fresh, lively sound quality you expect from a new set.

Silk-wrapped ball ends round out the construction with a practical layer of protection at the bridge, reducing wear on string slots and cushioning contact with bridge pins — a detail that matters most to players with vintage or delicate instruments. At medium gauge (.013–.056), the Era set provides full projection and dynamic range suited to strumming, flatpicking, and driving a dreadnought hard in live settings, while remaining approachable enough for players making the step up from lighter gauges.

Ideal For

• Acoustic guitarists seeking the best phosphor bronze strings for warm, full-bodied tone with extended string life
• Strummers and flatpickers who want medium-gauge acoustic strings with responsive feel and reduced finger fatigue
• Gigging and touring musicians who need corrosion-resistant acoustic guitar strings that hold tone through heavy use
• Players with vintage acoustic instruments who want silk ball ends to protect their bridge and pin slots
• Acoustic players visiting our Idaho Falls guitar store looking to upgrade their string game with a premium treated set

Key Features

Flexible Core Construction Martin's Flexible Core design gives the Era strings a more responsive, comfortable feel under the fingers — reducing stiffness and fatigue compared to traditional rigid-core strings without compromising projection or tonal character.

Phosphor Bronze Winding Round-wound phosphor bronze alloy delivers the warm low end, vibrant mids, and shimmering highs that define classic acoustic tone — harmonically complex and balanced across all six strings from the first play.

Martin Lifespan Corrosion Protection Lifespan treatment bonds to the string at a molecular level, creating a barrier against sweat, skin oils, and humidity that would otherwise degrade tone and playability — keeping Era strings sounding fresh significantly longer than untreated phosphor bronze sets.

Silk-Wrapped Ball Ends Silk wrapping at each ball end protects bridge pins and string slots from unnecessary wear and abrasion, extending the life of your instrument's hardware alongside the life of the strings themselves.

Medium Gauge (.013–.056) The medium gauge delivers full-bodied volume, strong projection, and the dynamic headroom to handle aggressive strumming and flatpicking, while remaining comfortable enough for players transitioning up from lighter strings.

What's Included

• Martin Era Treated Acoustic Guitar Strings, 1 Set (6 strings)
• Gauges: .013, .017, .026, .035, .045, .056

Technical Specifications

Get Your Hands on These Acoustic Guitar Strings Today

Stop in to No Limit Guitar Co in Idaho Falls to pick up a set of Martin Era strings and explore our full selection of acoustic guitar strings and accessories. Our staff can help you find the right gauge and string type for your playing style and instrument. Reach us online or by phone to check availability — your next great tone is one string change away.