Pricing and availability

We compare 600+ stores and found this item at 7 stores. Prices updated .

Sweetwater
$7.99 $5.99 $2.00 · All time low
Guitar Center
5.0 (2)
$7.99
Amazon
4.7 (339)
Used
Reverb
5.0 (1)
$7.27 New
$6.89 Used
Musician's Friend
4.0 (2)
$7.99
Thomann
4.9 (10)
$6.70 $6.60 $0.10 · All time low

Price History

Based on price data from 5 merchants for "Martin Authentic Acoustic Superior Performance Guitar Strings - 80/20 Bronze Bluegrass". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

From the legendary craftspeople at C.F. Martin & Co., Martin Authentic Acoustic Superior Performance Guitar Strings in 80/20 Bronze Bluegrass are designed to bring out the full potential of your acoustic guitar. Crafted with the same meticulous attention to detail as their renowned guitars, these strings promise a blend of superior tone, clarity, and durability that discerning musicians demand.

Engineered for both the studio and the stage, these strings feature a high tensile-strength core wire that is tin-plated on all six strings. This not only boosts their resistance to corrosion but also ensures a consistent and reliable tone that lasts. Whether you're strumming through a lively bluegrass set or softly picking a heartfelt ballad, these strings deliver a bright and balanced sound that complements any style.

What sets these strings apart is their exceptional pre-market testing, guaranteeing a level of quality and consistency that's hard to beat. The 80/20 bronze composition offers a brilliant, shimmering tone that pairs beautifully with the natural resonance of your acoustic instrument. So go ahead, push the boundaries of your music, knowing your strings are built to keep up.

Key Features:

  • Designed by C.F. Martin & Co. for superior acoustic performance
  • Tin-plated high tensile-strength core wire for enhanced corrosion resistance
  • Highest-quality wrap wire for consistent true tone
  • 80/20 Bronze composition for a bright, balanced sound
  • Light gauge: 12-16-25-35-45-56
  • Rigorously tested for quality and consistency

Product specs

Brand Martin
Model MA240 Authentic Acoustic SP 80/20 Bronze Acoustic Guitar Strings - Bluegrass (.12 - .56)
Finish Standard
Year 2010s
Made In Mexico
Categories Guitar Strings

FAQs

What are the tonal characteristics of Martin Authentic Acoustic 80/20 Bronze Bluegrass strings?

Martin Authentic Acoustic 80/20 Bronze Bluegrass strings offer a bright and resonant tone, ideal for bluegrass music. The 80% copper and 20% zinc composition enhances the brightness and projection of your guitar, making them suitable for fingerpicking and flatpicking styles.

Are these strings suitable for bluegrass music?

Yes, the Martin Authentic Acoustic 80/20 Bronze Bluegrass strings are specifically designed for bluegrass music, providing a bright, punchy sound that complements the genre's dynamic playing style.

Do these strings have good tuning stability?

Yes, Martin Authentic Acoustic 80/20 Bronze Bluegrass strings are engineered for excellent tuning stability, ensuring your guitar stays in tune longer during performances or practice sessions.

How durable are Martin Authentic Acoustic 80/20 Bronze strings?

These strings are designed to resist corrosion, which enhances their durability and lifespan, making them a reliable choice for frequent players.

What is the gauge range for these strings?

The Martin Authentic Acoustic 80/20 Bronze Bluegrass strings have a gauge range of .12 - .56, providing a balanced tension that supports both rhythm and lead playing in bluegrass music.

Leigh Fuge

Leigh Fuge

Picking the Perfect Set of Acoustic Strings - Martin Guitars String Shootout

Video thumbnail for Picking the Perfect Set of Acoustic Strings - Martin Guitars String Shootout by Leigh Fuge

Picking the Perfect Set of Acoustic Strings - Martin Guitars String Shootout

Leigh Fuge

Leigh Fuge

Reviews

PROS

  • Bass strings are bigger for a warm, full sound

  • High strings offer bright, present tones

  • Suitable for hard strumming and bass popping

  • Lighter gauge ideal for fingerpicking styles

  • Versatile for non-bluegrass genres

CONS

  • Occasional difficulty with sliding on the strings

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Martin Authentic Acoustic Superior Performance Guitar Strings - 80/20 Bronze Bluegrass.

User experience

  • Owners of 000-18 guitars prefer light gauge strings for better top vibration and sound quality, particularly when playing fingerstyle.

    Source
  • Players switching from Elixir Nanowebs to Martin Lifespan extra light strings report minimal difference in feel and sound across multiple Martins and Gibsons.

    Source
  • Martin Retros may sound "clear but with a smoker’s lung," providing a unique tonal character preferred by some owners.

    Source
  • Thomastik-Infeld Plectrum strings are highly praised for their longevity, potentially lasting almost three years before needing replacement.

    Source

Comparisons

  • Martin 80/20 bronze strings are favored over phosphor bronze for players with sweat chemistry issues, as phosphor bronze can become unusable after just an hour of play.

    Source
  • Some owners find Elixir strings make Martin guitars sound tinny and thin, likening them to Taylor guitars, whereas Martin Lifespan strings maintain a clearer, richer tone.

    Source

Value and pricing

  • Martin Lifespan strings, although more expensive, can be cost-effective when purchased in bulk sets of 25, offering significant savings.

    Source
  • Santa Cruz Parabolic strings are considered costly but are favored for their sound quality, with some users ranking them as their top choice despite the price.

    Source

Use cases and applications

  • 80/20 bronze strings are recommended for bluegrass, as they provide the necessary tonal cut for band settings, especially with acoustic or single mic setups.

    Source
  • D’Addario Nickel Bronze strings are noted for enhancing bass response, making them suitable for players seeking a fuller low-end sound.

    Source

Mods and upgrades

  • Stringjoy Naturals are recommended for their long-lasting quality and rich tonal output, making them a strong contender for players seeking durable and vibrant strings.

    Source

Critic Reviews

Gear Review: Martin’s Redesigned Authentic Acoustic Strings | Acoustic Guitar

acousticguitar.com

Martin's Authentic Acoustic Superior Performance strings are a notable step forward, delivering a lively tone that revitalizes familiar guitars. Musicians praised their full-bodied sound and rich harmonics, making them a worthy addition to any player's arsenal. However, while the strings excel in performance, the review hints at a lack of significant innovation compared to previous models. Overall, these strings are recommended for those seeking enhanced tonal quality without overwhelming complexity.

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4.0 out of 5

Based on 2 Reviews and 2 Ratings

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paulsmithiii

Test Drive

I'm trying these strings for the first time and put them on my Epi. I didn't know they were designated "Bluegrass" - I don't play bluegrass but I am doing a lot of finger picking on acoustic right now (CSN, Led Zeppelin) and these lighter gauge strings are very good for that so I believe I made a good choice.

05darkwarrior

Good.

I use these on my acoustic guitar. They're pretty decent, but occasionally I have trouble sliding because of them.

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