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Martin FX640 Light 80/20 Bronze Acoustic Guitar Strings  

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Martin FX640 light acoustic guitar strings use a thinner core wire to deliver greater player control with sharp attack, increased flexibility and imp...Read More

  • MSRP:
    $13.75
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    - $9.00
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  • Your Price:
    $475

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Martin FX640 light acoustic guitar strings use a thinner core wire to deliver greater player control with sharp attack, increased flexibility and improved harmonic sustain. Martin FX strings have a wrap that is constructed of 80/20 bronze and the core wire is Martin's platinum: high carbon steel with special zinc flashing. Recommended for lead acoustic rock and fingerstyle playing styles.

80/20 Bronze

This alloy is comprised of 80% copper and 20% zinc. It is popular for acoustic strings and provides a very brilliant tone when they are initially put on the guitar and mellow over time.

Platinum

High carbon steel with special zinc flashing that gives the wire better tensile properties. Martin uses platinum on the FX string sets to increase the durability and improve harmonic sustain.

It has been said that the guitar becomes a mini orchestra when played fingerstyle. In fingerstyle's simplistic form, the thumb is setting the beat and the fingers are working through the melody. While that sounds rather basic, it is rather challenging to master. Despite all the instruction and guidance on fingerstyle playing, very little focus has been given to the string where the sound is truly initiated. So, Martin started from scratch in their string research facility and worked with several fingerstyle groups to develop a string that would be more responsive to fingerstyle methods. After creating many samples in the lab and working with the fingerstyle groups, they determined that a fingerstyle string should deliver crisp, clear notes with little overtone and light sustain. The string needs to be flexible and almost soft to the touch, but very controllable. And, since fingerstyle playing is not a forceful style, the string needs to deliver the proper resonance and vibration to the top to create the right volume.

The end result: Martin FX Flexible Core, available in 80/20 Bronze for maximum brilliance out of the box, and 92/8 Phosphor Bronze for warmth and consistent brilliance. The silvered steel plain strings provide the traditional tone and longevity you expect from Martin. The zinc flashed thinner core wire and thicker wrap wire increase the resonance and control while creating a more flexible string. Ultra-pure high tensile strength steel has been chosen to maximize the durability of the string.

Martin asked a member of the Michigan Fingerstyle Guitar Society to give them his feedback on the Martin FX strings. Here is Dave Wodnicki's experience: "The new Martin FX strings are truly a great set of wires. On the sound, the tone is clear/warm and they ring very nicely. On the feel, great to the touch but what I really noticed was that when I played up above the 7th fret all the way up to the 14th, it took less effort to make the chords, runs and bass lines. I was able to move around a bit easier and the control was very solid, which means I had plenty of reserve energy for expression. That's exactly what I like because there is a lot of music up there when you can get some real power into the phrasing and sustain it. The Martin FX Phosphor Bronze strings are perfect for fingerstyle. Nice work, guys!"

Whether you play Travis picking, American primitive guitar, ragtime guitar, Celtic guitar, slack-key guitar, percussive fingerstyle or jazz fingerstyle, give Martin FX Flexible Core strings a test. The Martin FX Flexible Core sets are also suitable for beginning guitar players. The FX line requires less finger pressure to play than standard strings at equivalent tensions. The thinner core wire also provides better sustain in the upper harmonic overtones.

C. F. Martin & Co., Est. 1833 remains one of the longest surviving family owned and operated manufacturers in the world. Six generations of the Martin family have been dedicated to the company's products, their superbly well-crafted acoustic instruments and strings.


Experience Martin tone and craftsmanship through their strings. Call or click today to order.

SPECIFICATIONS

FX640 Light 80/20 Bronze Acoustic Guitar Strings

  • Gauge .012 - .054
Reviews
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Review Snapshot®

by PowerReviews
MartinFX640 Light 80/20 Bronze Acoustic Guitar Strings
 
4.9

(based on 8 reviews)

Ratings Distribution

  • 5 Stars

     

    (7)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Good tone (6)
  • Consistent (5)

Cons

    Best Uses

    • Concerts (4)
    • Practicing (4)
      • Reviewer Profile:
      • Experienced (5)

    Reviewed by 8 customers

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    Displaying reviews 1-8

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    5.0

    Martin FX640,s are the best!!!!

    By Herbgtr

    from Marrero, La.

    About Me Experienced

    Pros

    • Consistent
    • Good Tone
    • Long Life
    • Smooth Feel

    Cons

    • None

    Best Uses

    • Backup
    • Concerts
    • Practicing

    Comments about Martin FX640 Light 80/20 Bronze Acoustic Guitar Strings:

    I use these on my Big baby Taylor acoustic. I have tried most other brands & keep coming back to these. I am a hard player so I needed strings that would not break, easy on the fingers ,keep their tone & not break my wallet. These are the best I have used.

    Comment on this review

     
    5.0

    Great Strings, easy to bend, last long

    By herbgtr

    from Marrero, La.

    About Me Experienced

    Ask me a question

    Verified Buyer

    Pros

    • Bend Easy
    • Consistent
    • Good Tone
    • Smooth Feel

    Cons

    • None

    Best Uses

    • Concerts
    • Gigs
    • Practicing

    Comments about Martin FX640 Light 80/20 Bronze Acoustic Guitar Strings:

    These strings keep their tone, easy on the fingers & bend easily. Great for electric players who are starting to play acoustic.

    Comment on this review

     
    5.0

    Best of Both Worlds

    By Danno

    from Massachusetts

    About Me Experienced

    Ask me a question

    Verified Buyer

    Pros

    • Consistent
    • Good Tone

    Cons

      Best Uses

      • Concerts
      • Practicing

      Comments about Martin FX640 Light 80/20 Bronze Acoustic Guitar Strings:

      These light gauge strings have the flexibility of extra light strings without the tendency to buzz and be limited in volume. The base tones are clear and the treble strong and bright. Makes the old Yamaha sound like a new guitar! I play thumb and finger style without any picks, and this is the perfect string.

      Comment on this review

       
      5.0

      T.E. sent me.

      By Daniel2112

      from Portland, OR

      About Me Experienced

      Pros

      • Consistent
      • Good Tone
      • Long Life
      • Strong

      Cons

        Best Uses

        • Backup
        • Concerts
        • Practicing

        Comments about Martin FX640 Light 80/20 Bronze Acoustic Guitar Strings:

        Saw Tommy Emmanuel in concert Jan. 2013, and he raved about them. I must say he made these strings sound pretty good! I tried a set, and love them.

        Comment on this review

         
        4.0

        Good for fingerstyle play

        By PingPongNails

        from Iowa

        About Me Experienced

        Verified Buyer

        Pros

        • Good Tone
        • Reasonably priced
        • Right Fingerstyle Tension

        Cons

          Best Uses

            Comments about Martin FX640 Light 80/20 Bronze Acoustic Guitar Strings:

            For serious fingerstyle, these FX strings are vastly superior to regular Martins. Having the right tension makes certain moves doable, which otherwise would be quite difficult; it makes me a better player. Regular Martins are only good for strumming chords.

            To me, the FX strings don't sound quite as good as Elixer Nanoweb 80/20's, and they certainly don't last as long, but they also don't cost as much. Elixers are great for relatively simple stuff (e.g. El McMeen's music; and he uses them, for good reason) but for more challenging pieces (e.g. Pierre Bensusan's music) they're just too darn slippery.

            These FX strings are a good compromise between playability (excellent), sound quality (not bad), string life (average), and cost (good).

            Comment on this review

             
            5.0

            Much bang for the buck

            By ovaltine52

            from Thompsons Station, TN

            About Me Professional Musician

            Ask me a question

            Verified Buyer

            Pros

            • Consistent
            • Good Tone

            Cons

              Best Uses

              • Great Session Strings

              Comments about Martin FX640 Light 80/20 Bronze Acoustic Guitar Strings:

              I used Martin Marquis for many years, bought some Martin FX 80/20's for my students to try, was quite surprised that not only are they easier on my fingers, but they hold their bright/resonant sound quite awhile for a lower priced uncoated string. Liked them so much I bought some sets for myself.

              Comment on this review

               
              5.0

              great bright tone

              By esthermarie3

              from michigan

              Verified Buyer

              Comments about Martin FX640 Light 80/20 Bronze Acoustic Guitar Strings:

              these strings have a nice bright crisp tone to them. great for fingerpicking.

              Comment on this review

              (1 of 1 customers found this review helpful)

               
              5.0

              Great for leads, good for rhythm

              By Michael Rogers

              from Sacramento, CA

              Comments about Martin FX640 Light 80/20 Bronze Acoustic Guitar Strings:

              I play electric mostly, but still spend a lot of time on an acoustic. If you are a lead player, and you want to take some of your chops natural, these strings are a very good compromise between tone and ease of play. The SPs still sound better in my opinion, deeper, but the way you can bend the FX allows a much greater degree of expression, without causing the arthritis in the hands to flare up! Don't want to give the wrong impression, they sound great, and if you play electro-acoustic, this is a no-brainer for an electric-guitar-centric player. I like them, a lot. I keep a set of SPs on a separate guitar if I am going acoustic and doing mainly rhythm.

              Comment on this review

              Displaying reviews 1-8

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