These Martin Authentic Acoustic SP 80/20 Bronze 12 String Guitar Strings are extra stable, giving you a full balanced tone, with quicker response and increased tuning stability.

Martin Authentic Acoustic Superior Performance SP strings feature higher tensile strength and tin-plated core wire on all six strings that enables a fuller and more balanced acoustic guitar tone, quicker response to your picking and increased tuning stability. This SP 12 string set will deliver more body and projection, maximizing what your acoustic has to offer. The additional stability will be especially welcome for ensuring the tuning performance of your 12 string guitar. The 80/20 mix gives these acoustic guitar strings a bright, crisp ringing sound with pleasing overtones.

Their world renowned impeccable standards for acoustic guitar tone are embedded in this string design and their precision manufacturing process delivers consistent performance. These strings come packaged to resist humidity changes, keeping your strings factory fresh. Available in two different string gauges. If you want time tested tone and performance for your guitar, from a heritage brand, these Martin Authentic Acoustic SP 80/20 Bronze 12 String set will consistently deliver the tone you've come to know and love with increased stability.

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