Detail 01
80% copper, 20% zinc wrap
The set uses an 80/20 copper-zinc alloy wrap wire.
Product detailSKU #1500000368787
Ernie BallEarthwood 80/20 Custom Medium Bronze Acoustic Guitar Strings 12.5-56
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Independent shopping perspective
The Korena take
Earthwood 80/20 Custom Medium Bronze is an acoustic string set built with 80% copper and 20% zinc wrap wire over a brass-plated steel hex core. The title identifies the gauge range as 12.5-56. Its tonal description combines crisp highs, defined midrange, and a robust low end, while the source also attributes stable intonation and tuning to the medium gauge. It is positioned for acoustic work in the studio or on stage.
Strong match
Who this is for
- Studio acoustic tracking that calls for crisp highs, defined mids, and a robust low end.
- Stage acoustic performance using a Custom Medium 12.5-56 string set.
What matters in use
The specifications, translated
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 02
Brass-plated steel hex core
The strings use a hex-shaped steel core with brass plating.
Detail 03
Custom Medium 12.5-56
The title identifies this as the set's gauge range.
Final check
Know before you order
- 01Check that a Custom Medium 12.5-56 gauge range suits your acoustic guitar setup.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What is the core construction?
These strings use a brass-plated steel hex core.
02Where are these strings made?
They are handmade in California.
