Introduction
This manual provides essential information for the D'Addario EJ11 80/20 Bronze Acoustic Guitar Strings. These strings are designed to deliver a bold, bright acoustic sound with crisp projection, suitable for various musical styles. Understanding the features, proper installation, and maintenance will ensure optimal performance and longevity of your strings.

Image: Front packaging of D'Addario EJ11 80/20 Bronze Acoustic Guitar Strings, Light Gauge 12-53.
Key Features
- Precision Wound: D'Addario 80/20 Bronze acoustic guitar strings are precision wound over a hexagonal high carbon steel core.
- Bold, Bright Sound: The 80/20 Bronze wrap wire provides a bold, bright acoustic sound, with crisp projection that fills the room.
- Original Acoustic String: 80/20 Bronze was originally created by John D'Addario Sr. and renowned guitar maker John D'Angelico in the 1930s.
- Corrosion Protection: Innovative packaging includes a corrosion barrier sleeve to keep strings fresh.
- Made in the USA: Manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for consistent performance.

Image: A comparison table highlighting key features of D'Addario 80/20 Bronze strings.
Specifications
| Specification | Detail |
|---|---|
| Item Model Number | EJ11 |
| String Gauge | Light (12-53) |
| String Material | 80/20 Bronze |
| Number of Strings | 6 |
| Item Weight | 1.06 ounces |
| Product Dimensions | 3.15 x 4.72 x 4.72 inches |
Setup and Installation
Proper installation of your guitar strings is crucial for optimal sound and playability. Follow these general steps:
- Remove Old Strings: Carefully loosen and remove the old strings from your guitar. This is a good time to clean your fretboard.
- Identify New Strings: D'Addario strings feature color-coded ball ends for easy identification. Refer to the packaging for the specific color code for each string (e.g., silver for 1st E, purple for 2nd B, green for 3rd G, black for 4th D, red for 5th A, brass for 6th E).
- Install Bridge Pins: Insert the ball end of each string into its corresponding bridge pinhole and secure it with the bridge pin. Ensure the ball end is seated correctly against the bridge plate.
- Thread Through Tuning Pegs: Thread the other end of each string through its respective tuning peg. Pull the string taut and then wrap it around the peg, ensuring a few wraps below the initial entry point for better tuning stability.
- Tune to Pitch: Slowly bring each string up to pitch using a tuner. Stretch the strings gently by pulling them away from the fretboard a few times, then retune. Repeat this process until the strings hold their pitch consistently.

Image: Illustration of D'Addario's color-coded ball ends for easy string identification.
Video: D'Addario Acoustic 80/20 Bronze. This video demonstrates the sound characteristics of D'Addario 80/20 Bronze strings.
Operating (Tone & Playability)
D'Addario EJ11 80/20 Bronze strings are known for their distinctive tonal qualities and comfortable playability:
- Bright and Projecting Tone: These strings produce a crisp, clear, and vibrant sound with excellent projection, making them ideal for recording and live performances where a strong acoustic presence is desired.
- Rich Harmonics: The 80/20 Bronze alloy contributes to rich, sparkling harmonics, adding depth and character to your guitar's sound.
- Comfortable Playability: The light gauge (12-53) offers a comfortable playing experience, reducing finger fatigue while still providing good tension for clear notes.
Video: Acoustic 80/20 Demo Video. This video provides an audio demonstration of the 80/20 Bronze acoustic strings.
Video: Bright and Projecting Strings!! D'Addario Acoustic Strings. This video highlights the bright and projecting qualities of D'Addario acoustic strings.
Maintenance
To prolong the life and maintain the tone of your D'Addario EJ11 strings:
- Wipe Down After Use: After each playing session, wipe down your strings with a clean, dry cloth to remove sweat, oils, and dirt. This helps prevent corrosion and extends string life.
- Regular Cleaning: Periodically clean your fretboard and strings more thoroughly with a string cleaner designed for guitar strings.
- Store Properly: When not in use, store your guitar in a case or gig bag to protect it from environmental factors that can accelerate string degradation.
- Change Strings Regularly: The frequency of string changes depends on your playing habits, body chemistry, and environment. As a general guideline, consider changing strings every 1-3 months, or sooner if you notice a significant loss of tone, brightness, or if they become discolored.

Image: Back of the D'Addario string packaging, highlighting the corrosion barrier sleeve for freshness.
Troubleshooting
- Poor Tuning Stability: New strings require stretching to settle. Ensure you have properly stretched the strings during installation. Also, check your tuning machine heads and nut for any issues.
- Dull or Lifeless Tone: This is a common sign that your strings are old and need to be replaced. Accumulated dirt and corrosion can dampen the string's vibration.
- String Breakage: Frequent string breakage can be caused by sharp edges on the bridge saddle, nut, or tuning pegs. Inspect these areas for burrs. Excessive bending or aggressive playing can also contribute.
- Buzzing: String buzzing can be due to improper string gauge for your guitar's setup, low action, or uneven frets. Consult a guitar technician if the issue persists after ensuring proper string installation and tuning.
Warranty and Support
For warranty information, product support, or to register your product for Players Circle points, please refer to the official D'Addario website or contact their customer service directly. Details regarding Players Circle points can often be found on the product packaging.