Ernie Ball Aluminum Bronze P02566 Medium Light Acoustic Strings
- Aluminum bronze wrap on Maraging steel hex cores
- Medium light, 12-54 gauge
- Uncoated wire
- Balanced sound, pronounced highs and lows
- Corrosion resistance listed
- 1.28 oz, strings only
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A set of uncoated aluminum bronze acoustic strings in medium light gauge, with a copper and aluminum wrap. The warranty entry says none and points to customer service.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B00JPSXCV2Category: Acoustic Guitar Strings
Styles Available
Need a different one? Pick on Amazon →
Overview
Fitting a medium light set of aluminum bronze strings is the use here. Maraging steel hex cores carry wraps of alloy wire, tailored by Ernie Ball for acoustic guitar, and only strings come in the pack.
The maker offers this alloy for projection, clarity and corrosion resistance. The sound is described as balanced, with pronounced lows and crisp highs. Coating is absent, and the warranty entry reads none.
Who it's for
Guitarists who like defined bass notes and bright trebles from an uncoated set, and who will accept a customer service contact in place of a warranty. Anyone who needs a lighter or heavier gauge should choose a different set.
Pros and cons
- Aluminum bronze wrap wire
- Maraging steel hex cores
- Corrosion resistance listed
- Balanced, defined sound
- Warranty entry says none
- Strings only, nothing else in the pack
Performance notes
The hex core grips the wrap, and the copper and aluminum blend is cut for acoustic guitars, aiming at crisp highs with pronounced lows. Medium light gauge sets the tension and finger effort across all six strings. Without a coating, life depends on the alloy's own corrosion resistance.
Specifications
| Brand | Ernie Ball |
|---|---|
| Dimensions & fit | |
| Item weight | 1.28 ounces |
| Construction & materials | |
| String Material Type | Aluminum bronze |
| Coating Description | Uncoated |
| Included components | |
| Included Components | Guitar strings only |
| Warranty & support | |
| Warranty Description | None; contact Ernie Ball customer service |
| Other details | |
| String Gauge | Medium light, 12-54 |
| Gauges | .012, .016, .024, .032, .044, .054 |
| Sound Profile | Balanced with pronounced highs and lows |
| Core | Maraging steel hex core |
Frequently asked questions
Can the Ernie Ball P02566 strings go on an electric guitar?
The listing names acoustic guitar as the instrument and the recommended use, so these are acoustic strings.
Are the Ernie Ball aluminum bronze strings coated?
No. The coating entry and finish both read uncoated.
Is there a warranty on the Ernie Ball P02566 set?
The warranty entry reads none and directs issues to Ernie Ball customer service.