---
product_id: 15581933
title: "Guitar Strings - Acoustic Guitar Strings - Flat Tops Phosphor Bronze - For 6 String Guitar - Warm, Semi-Bright Tone - EFT17 - Medium, 13-56"
brand: "d'addario"
price: "Bs.341"
currency: BOB
in_stock: true
reviews_count: 8
category: "D'addario"
url: https://www.desertcart.bo/products/15581933-guitar-strings-acoustic-guitar-strings-flat-tops-phosphor-bronze-6
store_origin: BO
region: Bolivia
---

# Precision wound for smooth play Durable phosphor bronze wrap Made in USA, quality assured Guitar Strings - Acoustic Guitar Strings - Flat Tops Phosphor Bronze - For 6 String Guitar - Warm, Semi-Bright Tone - EFT17 - Medium, 13-56

**Brand:** d'addario
**Price:** Bs.341
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your acoustic vibe with strings that sing and sustain!

## Quick Answers

- **What is this?** Guitar Strings - Acoustic Guitar Strings - Flat Tops Phosphor Bronze - For 6 String Guitar - Warm, Semi-Bright Tone - EFT17 - Medium, 13-56 by d'addario
- **How much does it cost?** Bs.341 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/15581933-guitar-strings-acoustic-guitar-strings-flat-tops-phosphor-bronze-6)

## Best For

- d'addario enthusiasts

## Why This Product

- Trusted d'addario brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Proudly Made in the USA:** Crafted in New York with exacting standards, ensuring consistent quality and reliability every time.
- • **Earn Rewards While You Play:** Register your strings with the included code to join the Players Circle and unlock exclusive perks.
- • **Precision Wound for Silky Smooth Play:** Flat Tops are expertly ground and polished to reduce finger noise and deliver a sleek playing experience.
- • **Balanced Warmth Meets Semi-Bright Tone:** Phosphor bronze wrap wire offers a rich, versatile sound perfect for all genres and recording sessions.
- • **Medium Gauge 13-56 for Maximum Projection:** Provides enhanced volume and tension, ideal for expressive blues, slide, and acoustic-electric players.

## Overview

D'Addario Flat Tops Acoustic Guitar Strings (Medium 13-56) feature precision-wound phosphor bronze over a high-carbon steel core, delivering a warm yet semi-bright tone with reduced finger noise. Designed for durability and smooth playability, these USA-made strings are perfect for recording, slide guitar, and all musical styles, offering maximum volume and projection with a polished finish.

## Description

As a half round phosphor bronze acoustic guitar set, Flat Tops are designed to significantly reduce unwanted finger noise. Combining tried-and-true phosphor bronze tone with a smoother feel and quieter playing experience, they’re excellent for recording—and slide guitar playing. Flat Tops are made with a high carbon steel core and phosphor bronze wrap wire, which is then precision ground and polished, leaving behind a semi-flat string with a smooth feel and beautifully balanced tone. 13-56 Medium gauge strings provides maximum volume and projection, with more tension and resistance.

Review: Guitar time - Great strings play alot of blues these strings hold up and just very nice to play and they sound bright luv them.
Review: The best strings for acoustic electric guitars - I play an acoustic electric. When I first got an AE 12 years ago I was dismayed at how much string squeak was amplified. In desperation, I tried flat wound strings for electric guitars. That reduced the string squeak significantly, but the tone was flat and tinny. Then I discovered D'Addario Flat Tops. They are round wound, but with the tops of the round wire shaved off. There is a little more string squeak than with flat wounds, but the tone is as good as a good round wound. I've used nothing else for over 10 years. I've tried both the medium and light gauges. My playing style works better with the medium gauge -- which is a rather "heavy" medium. The strings are also very durable, with a set lasting several months with regular playing. Only once have I broken a flat top string while playing. Given the increasing popularity of acoustic electrics, I don't understand why these strings aren't more common.

## Features

- PRECISION WOUND - Flat Tops are precision wound with phosphor bronze wrap wire over a hexagonal high-carbon steel core, then precision ground and polished.
- BALANCE & WARMTH - Phosphor Bronze wrap wire provides tried-and-true D’Addario acoustic tone, with beautiful balance and warmth suitable for all musical genres.
- THE NEW STANDARD -Now the standard in acoustic guitar strings, Phosphor Bronze strings were originally pioneered by D’Addario in the 1970s.
- EARN REWARD POINTS - D’Addario Flat Tops strings come with a code on the recyclable VCI bag, which you can register to earn Players Circle points.
- MADE IN THE USA – Our acoustic guitar strings are made in the USA—drawn to exacting specifications at our New York production facility.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0006IQN34 |
| Best Sellers Rank | #6,749 in Musical Instruments ( See Top 100 in Musical Instruments ) #74 in Acoustic Guitar Strings |
| Brand | D'Addario |
| Brand Name | D'Addario |
| Coating Description | Uncoated |
| Color | Bronze |
| Customer Reviews | 4.5 out of 5 stars 206 Reviews |
| Finish Type | Polished |
| Global Trade Identification Number | 00019954121242 |
| Included Components | 6-string acoustic guitar set |
| Instrument | Acoustic Guitar |
| Item Height | 0.5 inches |
| Item Type Name | Acoustic Upright Bass |
| Manufacturer | D'Addario &Co. Inc |
| Recommended Uses For Product | Acoustic Guitar |
| String Gauge | Medium |
| String Material Type | Phosphor Bronze |
| UPC | 333335567611 019954121242 |
| Warranty Description | D'addario strives to be a customer-centric company dedicated to producing the highest quality musical instrument accessories in the world. If you have purchased a d'addario product that you believe to be defective, we invite you to submit a contact us form, selecting defect/warranty as inquiry type. We are committed to providing a fair resolution and hope that you will want to continue supporting … |

## Product Details

- **Brand:** D'Addario
- **String Gauge:** Medium
- **Color:** Bronze
- **Instrument:** Acoustic Guitar
- **String Material Type:** Phosphor Bronze

## Images

![Guitar Strings - Acoustic Guitar Strings - Flat Tops Phosphor Bronze - For 6 String Guitar - Warm, Semi-Bright Tone - EFT17 - Medium, 13-56 - Image 1](https://m.media-amazon.com/images/I/819NljIwS2L.jpg)

## Questions & Answers

**Q: My old fingers cant manage heavier gage strings anymore. anybody happy with "extra lights" 10-47's ?  is the ease of play worth the loss in tone?**
A: You might try silk and phosphor 11- 47. They play easily while maintaining the more traditional tone. .115 - 47 silk and steel play well but are very mellow tonally. Alot has to do with the guitar itself and of course personal preference.  Additionally,  you may have to set the guitar up again. The strings will ride slightly lower in the saddle and nut.  And they will not pull the neck as much. No easy way other than trial and error.  I have 17 acoustics and have tried several sets on each guitar before settling on what I like on that particular guitar.  Only 2 of the 17 uses the same strings.  Good luck.

**Q: Anyone using these for fingerstyle blues? What do you think of them?**
A: I only play fingerstyle, and I play blues, jazz, pop...I LOVE these strings. If you're not plugged in you may notice a little less volume. Nothing drastic. They sound a bit more "warm." Slides are sweet. They're not that expensive. (I have used another brand that cost something like $30. They are a little nicer, but I can't afford that luxury all the time.) Try a set. Your fingers will thank you.

**Q: Is the core in of the d'addario eft15 round core?**
A: Down in the product details at the bottom of the page -- "D'Addario Phosphor Bronze strings are precision wound with corrosion-resistant phosphor bronze onto a carefully drawn, hexagonally shaped, high carbon steel core. "

Note the "hexagonally shaped, high carbon steel core" so NOT a round core.

**Q: Wait a second, the title for the item is flattened, the description page says roundwound, and one of the answers says they are halfwound. Which is it?**
A: They are flattened. Flat round is a different type of string. Basically its like the small humps of the round string are ground down .

## Customer Reviews

### ⭐⭐⭐⭐⭐ Guitar time
*by 4***N on December 21, 2025*

Great strings play alot of blues these strings hold up and just very nice to play and they sound bright luv them.

### ⭐⭐⭐⭐⭐ The best strings for acoustic electric guitars
*by G***R on April 27, 2006*

I play an acoustic electric. When I first got an AE 12 years ago I was dismayed at how much string squeak was amplified. In desperation, I tried flat wound strings for electric guitars. That reduced the string squeak significantly, but the tone was flat and tinny. Then I discovered D'Addario Flat Tops. They are round wound, but with the tops of the round wire shaved off. There is a little more string squeak than with flat wounds, but the tone is as good as a good round wound. I've used nothing else for over 10 years. I've tried both the medium and light gauges. My playing style works better with the medium gauge -- which is a rather "heavy" medium. The strings are also very durable, with a set lasting several months with regular playing. Only once have I broken a flat top string while playing. Given the increasing popularity of acoustic electrics, I don't understand why these strings aren't more common.

### ⭐⭐⭐⭐ First set was defective but Amazon replaced them and they work well with my guitar.
*by W***E on November 16, 2021*

The first set was defective, which was annoying, but Amazon's next day replacement and the performance of the second set more than made up for initial disappointment. Really looked forward to trying these, but 2 strings broke during installation. Amazon sent a replacement set that works very well with my particular guitar (Takamine 12 fret deep bodied OM with thermal spruce top, solid mahogany sides and back). Regular light strings didn't quite wake it up and the heavier Nickel/Bronze .012-.056 (light top, medium bottom) had a dominating ring. The EFT17's produce the balanced sound I want. These "Flat top" Phosphor bronze .013 - .056 mediums open up the full musical range of my instrument. Real flat top strings use flat wrapping wire around the core. The EFT17's are wrapped with round wires but then milled flatter. The advertised result is less squeak, which is true, but I also found them easier on the fingertips than standard mediums. They are expensive, but hopefully they will last a few months. After a lengthy search, I've found the best strings for my guitar. Can't say how they work on other guitars, but they fit mine like a glove.

## Frequently Bought Together

- D'Addario Guitar Strings - Acoustic Guitar Strings - Flat Tops Phosphor Bronze - For 6 String Guitar - Warm, Semi-Bright Tone - EFT17 - Medium, 13-56
- D'Addario Guitar Strings - Phosphor Bronze Acoustic Guitar Strings - EJ17-3D - Rich, Full Tonal Spectrum - For 6 String Guitars - 13-56 Medium, 3-Pack
- D'Addario Accessories Pro-Winder Guitar String Winder, Cutter, Bridge Pin Puller - All in One Guitar Tool - Black

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-01-22*