D'Addario Flat Tops EFT17 Phosphor Bronze Strings
- 13-56 medium gauge
- Uncoated phosphor bronze
- Warm, balanced sound profile
- Half-round, semi-flat surface
- 6-string acoustic set
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An uncoated medium-gauge set for acoustic players who want warmth and a smooth surface. Medium tension is firmer than the lighter sets in the line.
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ASIN: B0006IQN34Category: Acoustic Guitar Strings
Overview
Not a coated string, the EFT17 is an uncoated phosphor bronze set on a high-carbon steel core, precision ground to a semi-flat surface. It is a six-string acoustic guitar set in a medium gauge.
A smooth feel, less finger noise and a warm, balanced voice are the reasons to look at it. The medium gauge adds tension for players who strum hard. Item type in the specs reads upright bass, which contradicts the guitar set.
Who it's for
Flat-pickers and recordists who like firmer tension and a smooth surface. Players with sensitive fingers or anyone needing extended-life coating should choose a lighter or coated option.
Pros and cons
- Uncoated phosphor bronze
- Reduced finger noise
- Warm, balanced sound
- Higher tension to fret
- Item type entry reads upright bass
Performance notes
The wrap is round wound, then precision ground, leaving a flattened outer surface that reduces finger noise. Medium gauges raise string tension, which drives the top harder and firms up the feel. Uncoated phosphor bronze supplies the warm, balanced voice.
Specifications
| Brand | D'Addario |
|---|---|
| Construction & materials | |
| String Material Type | Phosphor bronze |
| Coating Description | Uncoated |
| Finish Type | Polished |
| Included components | |
| Included Components | 6-string acoustic guitar set |
| Other details | |
| String Gauge | 13-56 (Medium) |
| Recommended Uses For Product | Acoustic guitar |
| Sound Profile | Warm, balanced |
Frequently asked questions
What comes in the D'Addario EFT17 pack?
The included components entry lists a 6-string acoustic guitar set.
Are the EFT17 strings coated?
No. The coating entry reads uncoated.
Are the EFT17 strings for bass?
No. The item type entry says upright bass, but the title, description and included components describe a 6-string acoustic guitar set.