1. Introduction
Congratulations on your purchase of the Martin Road Series D-12E Acoustic-Electric Guitar. This instrument combines traditional Martin craftsmanship with modern playability and electronics, offering a rich acoustic tone and versatile amplified performance. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your guitar to ensure years of musical enjoyment.
2. Product Overview
The Martin D-12E features a Dreadnought body shape, known for its robust volume and balanced tone. It is constructed with a solid Sitka Spruce top and Sapele back and sides, providing a resonant and articulate sound. The guitar is equipped with Fishman MX-T electronics for amplified performance, including a built-in tuner for convenience.
Figure 2.1: Full front view of the Martin Road Series D-12E Acoustic-Electric Guitar.
Figure 2.2: Close-up view of the guitar's body, showcasing the Sitka Spruce top, Sapele sides, and soundhole rosette.
Figure 2.3: Rear view of the guitar, highlighting the Sapele wood grain on the back.
3. Setup
3.1 Unpacking and Initial Inspection
Carefully remove the guitar from its gig bag and packaging. Inspect the instrument for any visible damage that may have occurred during shipping. Ensure all components, including the gig bag, are present.
3.2 Tuning the Guitar
Your D-12E is equipped with Fishman MX-T electronics, which include a built-in tuner. To use the tuner:
- Press the tuner button on the preamp to activate it. The display will illuminate.
- Pluck each string individually. The display will show the note being played and indicate if it is sharp or flat.
- Adjust the corresponding tuning machine head until the display indicates the string is in tune (typically a green light or centered needle).
- Repeat for all six strings (E, A, D, G, B, E).
- Press the tuner button again to deactivate the tuner.
For optimal performance, ensure the guitar is tuned to standard pitch (EADGBe) or your preferred alternate tuning.
3.3 String Action and Intonation
The string action (height of strings above the fretboard) and intonation are factory-set. If you experience buzzing, difficulty playing, or notes that are out of tune higher up the neck, a professional setup by a qualified guitar technician is recommended. Adjustments to the truss rod, saddle, or nut should only be performed by experienced individuals.
4. Operating
4.1 Acoustic Playback
The D-12E is designed to deliver a rich acoustic tone. Experiment with different strumming and picking techniques to explore its full dynamic range. The Dreadnought body provides strong bass response and projection.
4.2 Using Fishman MX-T Electronics
The Fishman MX-T preamp system allows you to amplify your guitar for live performance or recording. It features controls for Volume, Tone, and a built-in Tuner.
- Volume Control: Adjusts the overall output level of the amplified signal. Start with a low setting and gradually increase to avoid feedback.
- Tone Control: Shapes the amplified sound. Turn clockwise for brighter tones and counter-clockwise for warmer, darker tones.
- Tuner Button: Activates and deactivates the built-in chromatic tuner (refer to Section 3.2). When the tuner is active, the output signal is muted.
4.3 Connecting to an Amplifier or PA System
Connect a standard 1/4-inch instrument cable from the guitar's endpin jack to your amplifier or PA system input. Ensure your amplifier or mixer is set to a clean, acoustic-friendly channel. Adjust the guitar's volume and tone controls, along with your amplifier's settings, to achieve your desired sound.
5. Maintenance
5.1 Cleaning the Guitar
- Body: Wipe the body with a soft, lint-free cloth after each use to remove fingerprints and sweat. For deeper cleaning, use a guitar-specific polish sparingly.
- Fretboard: Periodically clean the Richlite fretboard with a damp cloth. Avoid harsh chemicals.
- Strings: Wipe down strings after playing to extend their life and maintain tone.
5.2 String Replacement
Strings should be replaced regularly, depending on playing frequency and personal preference. Old strings can sound dull and affect intonation. When replacing strings, change them one at a time to maintain neck tension. Use light gauge acoustic guitar strings for optimal performance on the D-12E.
5.3 Humidity Control
Acoustic guitars are sensitive to changes in temperature and humidity. Maintain a relative humidity level between 45-55% to prevent wood warping, cracking, or other damage. Use a guitar humidifier in dry environments and avoid exposing the guitar to extreme temperatures or direct sunlight.
5.4 Storage
When not in use, store your guitar in its included gig bag or a hardshell case to protect it from dust, impacts, and environmental changes.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| String buzzing | Low action, uneven frets, worn strings, improper technique | Check string height. Replace old strings. Consult a technician for fret leveling or action adjustment. |
| No sound from electronics | Dead battery, faulty cable, tuner engaged, amplifier issues | Replace 9V battery in preamp. Check instrument cable. Ensure tuner is off. Verify amplifier is working correctly. |
| Guitar won't stay in tune | Old strings, improper string winding, environmental changes, faulty tuning machines | Replace strings. Ensure strings are properly wound on tuning posts. Allow guitar to acclimate to environment. Inspect tuning machines for damage. |
| Muffled or weak amplified sound | Low battery, incorrect tone settings, pickup issue | Replace 9V battery. Adjust tone control on guitar and amplifier. If problem persists, consult a technician. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 11D12E |
| Body Shape | Dreadnought |
| Top Material | Solid Sitka Spruce |
| Back & Side Material | Sapele Wood |
| Neck Material | Hardwood |
| Fretboard Material | Engineered Wood (Richlite) |
| Number of Strings | 6 |
| Electronics | Fishman MX-T (Volume, Tone, Built-in Tuner) |
| Connector Type | 1/4 inch (6.35mm) jack |
| Included Accessories | Gig Bag |
| Item Weight | 8 pounds |
| Product Dimensions | 3 x 3 x 3 inches (packaging dimensions) |
8. Warranty and Support
For detailed warranty information, please refer to the documentation provided with your guitar at the time of purchase or visit the official Martin Guitar website. Martin Guitar provides support and service for their instruments. If you require assistance beyond the scope of this manual, please contact Martin Guitar customer service or an authorized service center.
Official Martin Guitar Website: www.martinguitar.com
