1. Introduction
This manual provides essential information for the setup, operation, and maintenance of your Schecter C-4 Plus Bass Guitar. Please read this manual thoroughly to ensure proper use and to maximize the lifespan of your instrument.

Figure 1: The Schecter C-4 Plus Bass Guitar, featuring a Charcoal Burst finish, a 4-string configuration, and two humbucking pickups. The image displays the full instrument from headstock to body, highlighting its design and controls.
2. Setup
2.1 Initial Inspection
Upon unboxing, carefully inspect the bass for any signs of damage. Ensure all components, such as tuners, bridge, and pickups, are securely in place. Check the neck for straightness and the action (string height) for playability.
2.2 Stringing
The C-4 Plus is a 4-string bass. When replacing strings, use high-quality bass guitar strings of appropriate gauge. Thread each string through the bridge, over the saddle, and into the tuning machine post. Wind the string neatly around the post, ensuring sufficient wraps for tuning stability.
2.3 Tuning
Tune the bass to standard E-A-D-G (from thickest to thinnest string) using an electronic tuner. Fine-tune each string until the desired pitch is achieved. Allow the strings to stretch slightly and re-tune as necessary.
2.4 Amplifier Connection
Connect a standard 1/4-inch instrument cable from the output jack on the bass to the input of your bass amplifier. Ensure the amplifier is powered off before connecting or disconnecting the cable to prevent damage to your equipment.
3. Operating the Bass Guitar
3.1 Controls
The Schecter C-4 Plus features two Schecter Diamond Bass humbucking pickups and a set of control knobs for shaping your tone:
- Volume Knobs: Typically, there are individual volume controls for each pickup (neck and bridge). Adjust these to balance the output of each pickup or to achieve desired blend.
- Tone Knobs: These controls allow you to adjust the treble response of the pickups. Turning clockwise increases brightness, while turning counter-clockwise reduces treble for a warmer sound.
Experiment with different settings to find the sound that best suits your playing style and musical context.
3.2 Playing Position
Hold the bass comfortably, either seated or standing with a strap. Ensure your fretting hand can easily reach all frets and your picking/plucking hand is positioned over the pickups for optimal tone and attack.
4. Maintenance
4.1 Cleaning
After each use, wipe down the strings, fretboard, and body with a clean, soft, lint-free cloth. For the body, a guitar-specific polish can be used periodically. Avoid abrasive cleaners or solvents.
4.2 String Care
Regularly clean your strings to remove oils and dirt, which can degrade tone and shorten string life. Replace strings when they lose their brightness, become corroded, or show signs of wear.
4.3 Fretboard Care
The C-4 Plus features a rosewood fingerboard. Periodically, clean the fretboard with a specialized fretboard cleaner and condition it with lemon oil or a similar product to prevent drying and cracking. Avoid excessive moisture.
4.4 Storage
Store your bass in a stable environment, away from extreme temperature changes or humidity fluctuations. A gig bag or hard case provides protection from physical damage and environmental factors.
5. Troubleshooting
5.1 No Sound
- Check all cable connections (bass to amp, amp to power).
- Ensure the amplifier is powered on and its volume is not at zero.
- Verify the volume knobs on the bass are turned up.
- Test with a different cable or amplifier to isolate the issue.
5.2 Buzzing or Fret Noise
- Ensure proper fretting technique; press strings firmly behind the fret.
- Check for worn strings or uneven frets.
- String action may be too low; consult a qualified technician for adjustments.
5.3 Tuning Instability
- Ensure strings are properly stretched after installation.
- Check tuning machines for looseness.
- Environmental changes (temperature/humidity) can affect tuning.
6. Specifications
| Feature | Detail |
|---|---|
| Model Name | C-4 Plus |
| Manufacturer Part Number | 590 |
| Number of Strings | 4 |
| Body Material | Basswood with Maple Top |
| Neck Material | Maple |
| Fingerboard Material | Rosewood |
| Pickups | 2 Humbucking Pickups (Schecter Diamond Bass) |
| Color | Charcoal Burst |
| Item Weight | 10.4 Pounds |
| Dimensions (L x W x H) | 47.4 x 19.4 x 4.1 inches |
| GTIN / UPC | 810051474107 |
7. Warranty & Support
7.1 Warranty Information
The Schecter C-4 Plus Bass Guitar comes with a 2-year warranty. This warranty covers manufacturing defects and workmanship under normal use. Please retain your proof of purchase for warranty claims.
7.2 Customer Support
For technical assistance, warranty service, or general inquiries, please contact Schecter customer support through their official website or authorized service centers. Provide your model name (C-4 Plus) and any relevant purchase details when seeking support.