12-53 Phosphor Bronze Round Core Acoustic Guitar String Set

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Round Core
Gauges: 12 - 16 - 24w - 32 - 42 - 53
Phosphor Bronze wound strings were introduced in the early Seventies and have become the most popular acoustic string. Phosphor bronze wire is made from approximately 92% copper, 7% zinc and 1% phosphorous. Phosphor Bronze provides nice highs and lows, as well as pleasant subtle overtones. Phosphorous is used to help reduce tarnish and corrosion.
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5 Reviews

  • 5
    Best Steel Strings

    Posted by Richard Wormstall on 2nd Mar 2021

    After many years of trying various guitar strings from all the known companies out there, I am happy to say that my search is finally over. First, round core strings seem to bring out more of the fundamental notes, they have a bit more weight to them. But these here made by Curt Mangan simply top the list. My guitars play louder, and the feel of these, their tension, and the sensitivity to my dynamics that these strings offer is simply the best I have encountered in my 35 years of playing. Do yourself a favor and give these a try. I for my part will not play any other strings...ever!

  • 5
    round core for life!

    Posted by Daniel angelone on 23rd Aug 2020

    tried a set of round core on my electric and loved it! Complete game changer! Had to get a set for my acoustic! It never has sounded better. Brilliantly balanced tone!

  • 5
    Round core for life!

    Posted by daniel angelone on 11th Aug 2020

    Beautifully balanced and brilliant tone!

  • 5
    PB/Round Core

    Posted by steve on 15th Feb 2019

    Smooth, Sweet Tone, Loud

  • 5
    Round core Traditional Light acoustic guitar strings

    Posted by Tony Malta on 6th Apr 2018

    I find these to be the answer to the "stiffness" issue on my Breedlove Jumbo. Have not used round core in years. They seem well balanced and defined. I substituted the high E and B strings with 11.5 and 15.5. I'll purchase more!

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