Detail 01
Phosphor bronze wrap: 92% copper, 7.7% tin, 0.3% phosphorus
This is the wrap-wire composition used for the set.
Product detailSKU #1500000368783
Ernie BallEarthwood Phosphor Bronze Custom Medium Acoustic Guitar String 12.5-56
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Independent shopping perspective
The Korena take
Earthwood Phosphor Bronze Custom Medium is an acoustic set for players who want one gauge range across standard and dropped tunings. The title identifies it as 12.5-56, and its phosphor bronze wrap is described as delivering a warm, balanced response with clear detail. The set is also described as having even tension across six strings, which supports moving between strumming, fingerpicking, and flatpicking without changing sets. Made in California, USA.
Strong match
Who this is for
- Keeping one acoustic set on hand for standard and dropped tuning work.
- Moving between strumming, fingerpicking, and flatpicking on an acoustic guitar.
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
Custom Medium 12.5-56
The title identifies the set by this Custom Medium gauge range.
Final check
Know before you order
- 01Check your preferred gauge range before choosing this Custom Medium set.
- 02Choose this set only if its stated standard- and dropped-tuning use matches your setup.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can these strings be used in dropped tunings?
They are described as compatible with both standard and dropped tunings.
02Where are they made?
They are made in California, USA.
