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THE STORY BEHIND
THE SOUND

The 1930's

Working with luthier John D'Angelico, John D'Addario perfects the formula for the first iconic acoustic string set: a hexagonally shaped core coupled with an 80% copper and 20% tin wrap wire.
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The 1970's

John's son Jim invents a string prototype using a Phosphor Bronze wrap material. The set is immediately warmer sounding, but the true revelation is the strings last longer–sounding fresh weeks later.
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The 1990's-2000's

D'Addario perfects EXP coating, which quadruples strings life without compromising the comfortable feel and legendary sound of D'Addario strings.
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Today

NY Steel, a proprietary high-carbon steel wire, is introduced to EXP acoustic sets. The material is not only stronger, but exhibits unprecedented pitch stability.
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EXP STRINGS
with NY STEEL
Developed over three years of engineering and innovating, NY Steel is a proprietary alloy with unprecedented pitch stability and remarkable strength. First presented to the public in D'Addario NYXL electric guitar strings, this technology has now been added to our coated acoustic sets for the ultimate in tone, strength, and reliability.
String Strength
STRING STRENGTH
Pitch Stability
PITCH STABILITY

80/20
BRONZE
D'Addario 80/20 Bronze strings come from the original alloy perfected by John D'Addario Sr. nearly a century ago. Known for their crisp and bold projection, 80/20 strings create a sound as pure as the words that go with them. That's how you resonate with an audience.

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PHOSPHOR
BRONZE
Since the early 1970s, the characteristically warm sounding Phosphor Bronze strings have been crafted to last longer than any other uncoated acoustic string. As the essential sound for countless artists, Phosphor Bronze will always be the strings behind the songs you love.

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OUR FULL LINE OF
ACOUSTIC STRINGS

80/20 Bronze

Developed by John D’Addario Sr. these strings are known for their bold, extra bright tone. The deep bottom-end and crisp highs make them a favorite for recording artists and the preferred choice of vintage enthusiasts.

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EXP 80/20 Bronze

Forged, drawn, and coated to deliver unprecedented strength and pitch stability, each EXP set maintains that familiar uncoated tone with a minimum of 4 times more life.

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Phosphor Bronze

Pioneered by D’Addario in 1974, precision wound corrosion-resistant phosphor bronze wire is carefully drawn around a hexagonally shaped, high-carbon steel core for consistent, long-lasting tone with excellent intonation.

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EXP Phosphor Bronze

Forged, drawn, and coated to deliver unprecedented strength and pitch stability, each EXP set maintains that familiar uncoated tone with a minimum of 4 times more life.

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Flat Tops

Phosphor bronze windings are precision ground & polished to a semi-flat, ultra-smooth surface perfect for slide playing, flatpicking and recording.

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Gypsy Jazz

Designed to the original specifications used in the pre-amplification era by John D’Addario Sr. to satisfy luthier Mario Maccaferri, silver-plated copper is wound on a high-carbon steel core for a percussive, and projecting tone.

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Silk & Steel

An ideal choice for parlor-sized acoustic guitars and players that prefer a soft feel and a warm, mellow tone, silver-plated copper is wound over a silk & steel core for a low tension string, with easy fingering and reduced string noise.

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