Detail 01
Bell Bronze alloy
Ernie Ball describes it as a patent-pending alloy inspired by alloys used in bells and cymbals.

Independent shopping perspective
Earthwood Bell Bronze Medium strings are an acoustic set developed with John Mayer, built around Ernie Ball’s Bell Bronze alloy and a stated focus on resonance, projection, and sustain.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
Ernie Ball describes it as a patent-pending alloy inspired by alloys used in bells and cymbals.
Detail 02
The set’s stated gauge range is .013 to .056.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
They are acoustic guitar strings.
They are a Medium set, with a stated 13–56 gauge range.
Ernie Ball developed them in collaboration with John Mayer.
Ernie Ball states that they provide a big, bold sound with increased resonance, projection, and sustain.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.