1. Setup
1.1 Unpacking and Initial Inspection
Carefully remove your SIGMA OM Junior Acoustic Electric Guitar from its packaging. Inspect the instrument for any signs of damage that may have occurred during transit. Each guitar is carefully inspected before shipping to ensure top quality.
1.2 Stringing
Your guitar comes pre-strung with premium D'Addario EXP16 (Phosphor bronze) steel strings. These strings are known for their warm, bright, and balanced tone with lasting durability. If replacing strings, ensure proper gauge and type for optimal performance.
Image: Close-up of the D'Addario EXP16 strings on the guitar's fretboard and soundhole.
1.3 Battery Installation
The acoustic-electric features require a CR2032 battery, which is included. Locate the battery compartment, typically near the preamp controls on the side of the guitar body, and insert the battery with the correct polarity.
1.4 Strap Buttons
The guitar is equipped with strap buttons for attaching a guitar strap, allowing for comfortable playing while standing. Ensure the strap is securely fastened to both buttons before use.
2. Operating the Guitar
2.1 Playing the Guitar
The 36.5-inch OM Junior body is designed for comfortable playability, suitable for both beginners and experienced guitarists. Its construction with a Spruce top and Sapele/Mahogany back & sides produces an open, warm tone with clear highs, crisp mids, and balanced lows.
Image: A full view of the SIGMA OM Junior Acoustic Electric Guitar, showcasing its compact size and design.
2.2 Tuning
Utilize the built-in tuner for accurate and effortless tuning. Activate the tuner via the controls on the side of the guitar body. Pluck each string individually and adjust the corresponding tuning peg until the display indicates the correct pitch.
2.3 EQ Adjustment
The guitar features a 3-band equalizer (EQ) for tone control. Adjust the Bass, Middle, and Treble knobs on the preamp to shape your desired sound when amplified. The Volume knob controls the overall output level.
Image: A close-up of the guitar's side-mounted preamp, showing the Bass, Middle, Treble, Volume, and Tuner controls.
2.4 Connecting to an Amplifier
To amplify your guitar's sound, connect a standard instrument cable from the output jack (typically located at the bottom strap button) to your amplifier or audio interface. Adjust the volume and EQ settings as needed.
3. Maintenance
3.1 General Care
Keep your guitar clean by wiping it with a soft, dry cloth after each use. Store it in a stable environment, avoiding extreme temperature and humidity changes, to prevent wood warping or damage to the finish. The gloss finish and protective top binding help maintain its appearance.
Image: A detailed view of the guitar's body, highlighting the teardrop sunburst finish and gloss.
3.2 String Replacement
Replace strings regularly (e.g., every 1-3 months, depending on usage) to maintain optimal tone and playability. Change one string at a time to keep tension on the neck consistent.
3.3 Truss Rod Adjustment
The guitar's neck features a truss rod for adjusting neck relief. If you experience string buzz or changes in action, the truss rod may need adjustment. This is a delicate procedure; if you are unsure, it is recommended to seek assistance from a qualified guitar technician.
Image: A close-up of the guitar's neck, showing the smooth satin finish for comfortable playing.
4. Troubleshooting
4.1 String Buzz
If you experience string buzz, check the string action (height of strings above the fretboard). This can often be resolved with a truss rod adjustment or by checking the bridge saddle and nut for proper height. Consult a professional if the issue persists.
4.2 Tuning Instability
If your guitar struggles to stay in tune, ensure the strings are properly stretched and seated on the tuning pegs. Check that the solid chrome tuners are functioning correctly. Extreme temperature changes can also affect tuning stability.
5. Specifications
- Model: SIG8OMJEVSB
- Total Length: 36.5”
- Scale Length: 23.4”
- Total Body Length: 17”
- Number of Frets: 20
- Strings: Premium D'Addario EXP16 (Phosphor bronze) steel string
- Tuners: Solid chrome tuners
- Neck Radius: 320R (12.6 inches)
- Top Material: Spruce Wood
- Back & Sides Material: Sapele / Mahogany
- Fingerboard & Bridge Material: Rosewood
- Finish: Gloss finished body with protective top binding
- Body Style: OM-Junior
- Neck Material Type: Sapele Wood
- Number of Strings: 6
- Battery: 1 CR2032 batteries required (included)
- Item Weight: 8.43 pounds
- Package Dimensions: 44 x 17.75 x 5.75 inches
- Hand Orientation: Right
6. Warranty
Your SIGMA OM Junior Acoustic Electric Guitar comes with a 30-Day Return Guarantee. Please refer to your purchase documentation for full details on warranty coverage and return procedures.
7. Support
For further assistance, technical support, or inquiries regarding your SIGMA guitar, please visit the official SIGMA website or contact customer service through your retailer. You can also visit the SIGMA Store on Amazon.
