Introduction to Your RockJam Bass Guitar Super Kit
Congratulations on your purchase of the RockJam RJBG01-SK-BK Bass Guitar Super Kit. This kit provides a complete package for aspiring bassists, featuring a high-quality bass guitar and essential accessories. This manual will guide you through the setup, operation, and maintenance of your new instrument and equipment to ensure a rewarding musical experience.

Image: The complete RockJam Bass Guitar Super Kit, including the bass guitar, amplifier, stand, gig bag, tuner, and accessories.
The RockJam RJBG01-SK-BK Bass Guitar Super Kit includes:
- Full-size precision four-string bass guitar with an ash wood body and maple fretboard.
- 20-watt amplifier with headphone output.
- Amplifier connection cable.
- Travel gig bag.
- Adjustable guitar strap.
- Digital clip-on tuner with LCD screen.
- Instrument stand.
- Spare strings.
- Extra picks.
Setup Guide
Follow these steps to set up your RockJam Bass Guitar Super Kit.
- Unpacking: Carefully remove all components from the packaging. Inspect each item for any signs of damage.
- Assemble the Guitar Stand: Unfold the instrument stand and ensure it is stable on a flat surface. The stand is designed to securely hold your bass guitar when not in use.

Image: The black metal guitar stand, ready to support the instrument.
- Insert Tuner Battery: The digital clip-on tuner requires a small button-cell battery (usually CR2032, included). Open the battery compartment, insert the battery with the correct polarity, and close the compartment.
- Connect the Amplifier:
- Place the 20-watt amplifier on a stable surface.
- Ensure the amplifier's power switch is in the "OFF" position.
- Connect the amplifier cable to the "INPUT" jack on the amplifier and the output jack on your bass guitar.
- Plug the amplifier's power cord into a suitable electrical outlet.

Image: The RockJam GB-20 20-watt bass amplifier with controls for volume, treble, middle, bass, and headphone output.
- Initial Tuning:
- Clip the digital tuner onto the headstock of your bass guitar.
- Turn on the tuner. It should display the note being played.
- Pluck each string individually and adjust the corresponding tuning peg until the tuner indicates the correct note (E, A, D, G for standard bass tuning) and shows it is in tune.

Image: A digital clip-on tuner attached to the headstock of a bass guitar, showing its display.
Operating Instructions
This section covers the basic operation of your bass guitar and amplifier.
Using the Bass Guitar

Image: A close-up view of the black RockJam bass guitar body, showcasing the pickups, bridge, and control knobs.
- Holding the Bass: Use the included strap to support the bass comfortably. Adjust the strap length so the bass hangs at a suitable height for your playing style, allowing easy access to the fretboard and strings.
- Playing Position: Whether standing or sitting, maintain a relaxed posture. Your fretting hand should be able to reach all frets without strain, and your picking hand should be positioned comfortably over the strings.
- Volume and Tone Controls: The bass guitar has knobs to control its output volume and tone. Experiment with these to find your preferred sound.
Using the Amplifier (GB-20)
- Power On/Off: Ensure your bass is connected, then flip the "POWER" switch to the "ON" position. Always turn the amplifier off when not in use.
- Volume Control: The "VOLUME" knob adjusts the overall loudness of the amplifier. Start with a low volume and gradually increase it.
- Tone Controls:
- TREBLE: Adjusts the high frequencies for brightness.
- MIDDLE: Adjusts the mid-range frequencies for presence.
- BASS: Adjusts the low frequencies for depth and fullness.
- Headphone Output: For silent practice, plug headphones into the "PHONES" jack. This will mute the amplifier's speaker.
Maintenance
Proper maintenance will extend the life and performance of your RockJam Bass Guitar Super Kit.
- Cleaning:
- Wipe down the bass guitar and amplifier with a soft, dry cloth after each use to remove sweat, dust, and fingerprints.
- For the bass, a specialized guitar polish can be used occasionally on the body, avoiding the fretboard.
- Clean the fretboard with a suitable fretboard conditioner periodically to prevent drying and cracking.
- String Care and Replacement:
- Wipe strings after playing to remove oils and dirt, which can prolong their life.
- Strings will eventually wear out, lose their tone, or break. Replace them with new bass guitar strings. Your kit includes spare strings. Refer to online tutorials or a professional for guidance on string replacement if you are unsure.
- Storage:
- When not in use, store your bass guitar on the included instrument stand or in the gig bag to protect it from dust, impacts, and temperature fluctuations.
- Avoid exposing the instrument to extreme temperatures or humidity.

Image: The black gig bag with shoulder straps, designed for transporting and protecting the bass guitar.
- Tuner Battery: Replace the tuner battery (CR2032) when the display becomes dim or the tuner stops functioning.
Troubleshooting
If you encounter issues with your kit, refer to the following common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from amplifier. |
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| Bass sounds out of tune. |
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| Buzzing sound from strings. |
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| Tuner not turning on or displaying. |
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|
Specifications
| Model Number | RJBG01-SK-BK |
| Instrument Type | Bass Guitar |
| Number of Strings | 4 |
| Body Material | Ash Wood |
| Fretboard/Neck Material | Maple |
| String Material | Alloy Steel |
| Finish Type | Polished |
| Color | Black |
| Size | Full |
| Amplifier Power | 20 Watts |
| Package Dimensions | 124 x 41 x 24.2 cm |
| Item Weight | 9.6 Kilograms |
| Tuner Battery Type | 1 Lithium Metal (CR2032) - included |
| Manufacturer | PDT |
| Country of Origin | China |
Warranty Information
RockJam products are manufactured to high-quality standards. For specific warranty details regarding your RJBG01-SK-BK Bass Guitar Super Kit, please refer to the warranty card included in your product packaging or visit the official RockJam website. Keep your proof of purchase for any warranty claims.
Support and Contact
Should you require further assistance or have questions not covered in this manual, please contact RockJam customer support.
- Online Support: Visit the official RockJam website for FAQs, product registration, and support contact forms.
- Email/Phone: Refer to the contact information provided on the RockJam website or in your product packaging.
Please have your model number (RJBG01-SK-BK) and purchase date ready when contacting support.





