1. Rhagymadrodd
Thank you for choosing the Junsun 12-inch 800W Powered Spare Tire Car Subwoofer. This product is designed to enhance your vehicle's audio system by delivering powerful, distortion-free bass. Its innovative hidden spare tire design allows for discreet installation, saving valuable trunk space and offering an anti-theft benefit. This manual provides essential information for safe installation, operation, and maintenance of your subwoofer.
2. Gwybodaeth Diogelwch
Please read all instructions carefully before installation and use. Failure to follow these instructions may result in serious injury or damage to the product or vehicle.
- Always disconnect the vehicle's negative battery terminal before beginning any electrical installation.
- Ensure proper grounding of the subwoofer to the vehicle chassis.
- Use appropriate gauge wiring as specified in the installation section to prevent overheating and electrical hazards.
- Do not install the subwoofer in a location that obstructs the driver's view neu'n ymyrryd â gweithrediad y cerbyd.
- Ceisiwch osgoi amlygu'r subwoofer i leithder neu dymheredd eithafol.
- Os ydych chi'n ansicr ynghylch unrhyw ran o'r broses osod, ceisiwch gymorth proffesiynol.
3. Cynnwys Pecyn
Gwiriwch fod yr holl eitemau yn bresennol yn y pecyn cyn bwrw ymlaen â'r gosodiad.
- Spare tire active subwoofer (1 pc)
- Owner's Manual (English) (1 pc)
- Screw with nut (M6x200mm) (1 pc)
- Plug and play wire harness & Signal line (1 pc)
- Rheolydd o bell (1 darn)

Figure 3.1: Included Components and Wiring Kit
4. Nodweddion Cynnyrch
- Powerful Output Performance: This 12-inch powered subwoofer delivers 800W peak power and 220W RMS power, ensuring powerful, distortion-free bass.
- Innovative Hidden Spare Tire Design: Fits perfectly into your vehicle's spare tire well, saving trunk space and offering an anti-theft benefit due to its concealed nature.
- All-in-One Plug & Play Solution: Integrates the subwoofer, built-in amplifier, and enclosure, and comes with a full wiring kit, simplifying installation.
- Professional Sound Tuning Controls: Fine-tune your sound precisely via the onboard controls or included wired remote, adjusting the Low-Pass Filter (LPF), Gain, and Bass Boost.
- Cysondeb Cerbyd Eang: Supports both high-level speaker wire input and RCA low-level input with auto turn-on functionality, integrating with most factory and aftermarket stereos.
- Durable Cast Aluminum Enclosure: Built with a high-strength cast aluminum enclosure for robust durability, corrosion resistance, and superior heat dissipation.
- Multi-Layered Protection Circuitry: Equipped with built-in triple protection against overheating, overload, and short circuits.

Figure 4.1: Hidden Spare Tire Design

Figure 4.2: Power and Control Features
5. manylebau

Figure 5.1: Panel Features and Specifications
| Nodwedd | Gwerth |
|---|---|
| Enw Model | JS-US-SUB1206 |
| Math o Siaradwr | Subwoofer |
| Pwer RMS | 220W |
| Pwer MAX | 800W |
| THD | <1.0% |
| Cymhareb Arwydd-i-Sŵn | >91dB |
| Ymateb Amlder | 20Hz-150Hz |
| Input Sensitivity (High Level) | 1V |
| Input Sensitivity (Low Level) | 0.4V |
| Hidlo Pas Isel | 50Hz-150Hz |
| Hwb Bass | 0 i + 12dB |
| Hidlo Subsonic | 20Hz |
| Sgorio Ffiws | 30A |
| Diamedr Subwoofer | 12 modfedd |
| Dimensiynau Cynnyrch | 2.95"D x 10.24"W x 13.58"H |
| Deunydd | Alwminiwm |
6. Gosod
The Junsun subwoofer is designed for straightforward installation. It can be placed in the spare tire well of most vehicles. Follow these general steps for installation:
- Paratoi'r cerbyd: Disconnect the negative terminal of your car battery. Locate your spare tire well.
- Gosodwch yr Is-woofer: Place the subwoofer securely in the spare tire well. Use the provided screw and nut to fasten it if your vehicle's spare tire mounting system allows.
- Gwifrau Pwer: Run the power wire from the subwoofer to the car's battery. Ensure the wire is properly routed and protected from sharp edges or moving parts. Connect the inline fuse holder close to the battery.
- Ground Wiring: Connect the ground wire from the subwoofer to a clean, unpainted metal surface on the vehicle chassis. Ensure a solid connection for optimal performance and safety.
- Mewnbwn Arwyddion: Connect the signal wires from your car's head unit to the subwoofer. You can use either high-level speaker wire inputs or RCA low-level inputs, depending on your head unit's capabilities.
- Troi Ymlaen o Bell: Connect the remote turn-on wire to a switched 12V source from your head unit (e.g., amplifier remote output).
- Cysylltu Rheolydd o Bell: Attach the included wired remote control to the subwoofer. Route the cable to a convenient location for easy access while driving.
- Gwiriadau Terfynol: Double-check all connections for security and proper polarity. Reconnect the negative battery terminal.

Figure 6.1: Subwoofer Placement in Spare Tire Well

Ffigur 6.2: Diagram Gwifrau
7. Gweithrediad
Once installed, you can control and fine-tune your subwoofer using the wired remote control.
7.1 Rheolydd Anghysbell â Gwifrau
The remote control allows you to adjust key settings for optimal bass performance:
- Gain Control (MIN/MAX): Adjusts the overall output level of the subwoofer. Start with a low setting and gradually increase until the desired bass level is achieved without distortion.
- Bass Boost (0dB/6dB/12dB): Provides an additional boost to low frequencies. Use sparingly to avoid over-driving the subwoofer.
- Low-Pass Filter (LPF) (30Hz-150Hz): Controls the upper frequency limit of the subwoofer. Set this to blend smoothly with your main speakers.
- Newid Cyfnod (0°/180°): Adjusts the phase of the subwoofer output. Experiment with both settings to find the one that provides the most cohesive bass response with your main speakers.

Figure 7.1: Wired Remote Control
8. cynnal
To ensure the longevity and optimal performance of your Junsun subwoofer, follow these maintenance guidelines:
- Glanhau: Defnyddiwch frethyn meddal, sych i lanhau tu allan yr is-woofer. Peidiwch â defnyddio cemegau llym na glanhawyr sgraffiniol.
- Awyru: Ensure that the subwoofer's enclosure has adequate airflow, especially if it's installed in a confined space. Proper ventilation helps dissipate heat and prevents overheating.
- Arolygiad gwifrau: Periodically check all wiring connections for tightness and signs of wear or corrosion. Loose connections can lead to poor performance or electrical issues.
- Amnewid ffiws: If the fuse blows, replace it only with a fuse of the same type and rating (30A). Never use a higher-rated fuse or bypass the fuse, as this can cause serious damage or fire.
9. Datrys Problemau
If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram and review yr awgrymiadau datrys problemau canlynol.

Figure 9.1: Troubleshooting Guide (Part 1)

Figure 9.2: Troubleshooting Guide (Part 2)
10. Gwarant a Chymorth i Gwsmeriaid
Junsun prioritizes your satisfaction. This subwoofer comes with a 3-year replacement warranty.
For any questions or support during your audio upgrade journey, our dedicated customer service team is available 24/7 to assist you.
10.1 Sut i Gysylltu â Chymorth
You can typically find contact information for Junsun customer support through the retailer where you purchased the product or on the official Junsun websafle.

Figure 10.1: Customer Support Information