Always in Beta

When you're continually chasing perfection, you've always got work to do. From our Pro-Winder to Phosphor Bronze and Fusion Twist, we are endlessly looking for new ways to improve your play.

The Tech Behind Tone

All of our strings and accessories are the result of decades of advances, all aimed at helping you play with the best tone possible.

Taking Strings Further

Every string we make brings together innovations, patents and proprietary designs to achieve new levels of quality.

Premium Wire Drawing

We couldn’t find string wire consistent enough for our needs, so we learned how to make our own. The machines we created are now the most sophisticated in the world, and right down the hall from our factory floor.

NY Steel

A high-carbon steel core made in NY and at the heart of our premium strings like XS, XT and NYXL, NY Steel brings incredible pitch stability and durability.

Fusion Twist

Invented to prevent slack in the twist to keep you in tune and ensure maximum tuning stability. Higher break strength also means you can keep sounding good night after night.

Hex Core Construction

We engineered the hexagonal core to better grip the wrap wire back in the 80s. Since then, we've watched it become the new standard for superior dimensional stability, durability and precise intonation.

When You Know You Know

From arena stages to storied luthier shops, no strings perform better. We make the most reliable and sustainable strings and accessories you can buy

They know

Trusted By Those Who Know

Relied on by the most hard-to-impress artists, techs, and guitar makers in the business.

Innovation

Control Freaks

Quality-obsessed means making 800,000 strings a day under one roof, from our own ingredients, to the tightest tolerances in the industry.

100% Musical

The D'Addario Foundation

Transforming young minds by filling gaps in music education.