Detail 01
80/20 bronze
Brighter and more scooped than phosphor bronze. Sparkles when new, but dulls faster as it oxidizes.
Product detailSKU #1274034478030
D'AddarioEJ12 80/20 Bronze Medium Acoustic Guitar Strings
1/8
Independent shopping perspective
The Korena take
80/20 bronze acoustic strings in medium gauge. For players who want a bright, loud set and can handle higher tension.
Strong match
Who this is for
- Flatpicking and strumming where volume and projection matter
- Dreadnoughts and larger bodies built for medium tension
- Players who want a crisp, bright top end when new
Consider the trade-offs
When to look elsewhere
- Small-bodied or vintage guitars not braced for medium tension
- Fingerstyle players wanting a softer, easier touch
- Electric or classical guitars — acoustic bronze only
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
Medium gauge
Higher tension. More volume and low end, but harder to fret and bend.
Detail 03
Acoustic strings
Bronze wrap voiced for driving a soundboard. Electric pickups barely register bronze.
Detail 04
Tension load on the top
Medium gauge pulls harder on the bridge and neck. Confirm your guitar is rated for it.
Final check
Know before you order
- 01Moving from light to medium usually needs a truss rod and intonation check.
- 0280/20 bronze loses brightness quickly — plan on more frequent changes.
- 03One set only. No winder, pins, or cutters included.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What's the difference between 80/20 and phosphor bronze?
80/20 bronze is brighter and more zingy when fresh but fades faster. Phosphor bronze adds phosphor for a warmer, more even tone and longer-lasting brightness.
02Are medium gauge strings too much for my guitar?
Depends on the build. Larger dreadnought-style guitars usually handle medium fine. Small-bodied, parlor, or older lightly-built guitars are safer with lights.
03Will these work on an electric guitar?
No. Bronze isn't magnetic enough for pickups to read properly. Electric guitars need nickel-plated steel or pure nickel strings.
04Why do these go dull so fast?
80/20 bronze oxidizes quickly, especially with hand oils and humidity. Wiping the strings down after playing extends the bright period noticeably.
