Martin Flexible Core Acoustic Guitar Strings

The idea behind these Martin Flexible Core sets is to have strings that sound and last as long as the standard SP’s but with a much softer, springier feel under your fingers. They should be easier to play for longer and easier to bend too! This is achieved by using a thinner gauge of core wire and thicker gauge of wrap wire. Naturally this affects the tone a bit; adding a little extra low-mid warmth while rolling off the low-end slightly. The brightness seems to be smooth which I can only assume is due to offset of more bronze and less core. Good strings, and Tommy loves them (as you’ll find out below).