一、簡介
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. 安全訊息
安裝和使用前請仔細閱讀所有說明。不遵守這些指示可能會導致嚴重的人身傷害或產品/車輛損壞。
- 在進行任何電氣安裝之前,請務必斷開車輛蓄電池的負極接線柱。
- 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.
- 請勿將重低音安裝在會阻擋駕駛視線的位置。 view 或乾擾車輛行駛。
- 避免將重低音暴露在潮濕或極端溫度下。
- 如果您對安裝過程的任何部分有任何疑問,請尋求專業人士的協助。
3. 包裝內容
安裝前,請確認包裝內所有物品齊全。
- 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)
- 遙控器(1個)

Figure 3.1: Included Components and Wiring Kit
4.產品特點
- 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.
- 廣泛的車輛相容性: 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. 規格

Figure 5.1: Panel Features and Specifications
| 特徵 | 價值 |
|---|---|
| 型號名稱 | JS-US-SUB1206 |
| 揚聲器類型 | 重低音 |
| 均方根功率 | 220W |
| 最大功率 | 800W |
| 總諧波失真 | <1.0% |
| 信噪比 | >91分貝 |
| 頻率響應 | 20Hz-150Hz |
| 輸入靈敏度(高電位) | 1V |
| 輸入靈敏度(低電平) | 0.4V |
| 低通濾波器 | 50Hz-150Hz |
| 低音增強 | 0 至 +12dB |
| 亞音速過濾器 | 20赫茲 |
| 保險絲等級 | 30A |
| 低音炮直徑 | 12英寸 |
| 產品尺寸 | 2.95 英吋深 x 10.24 英吋寬 x 13.58 英吋高 |
| 材料 | 鋁 |
6. 安裝
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:
- 準備車輛: Disconnect the negative terminal of your car battery. Locate your spare tire well.
- Mount the Subwoofer: 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.
- 電源接線: 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.
- 接地線: 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.
- 信號輸入 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.
- 遠程開啟: Connect the remote turn-on wire to a switched 12V source from your head unit (e.g., amplifier remote output).
- 連接遙控器: Attach the included wired remote control to the subwoofer. Route the cable to a convenient location for easy access while driving.
- 最終檢查: Double-check all connections for security and proper polarity. Reconnect the negative battery terminal.

Figure 6.1: Subwoofer Placement in Spare Tire Well

圖 6.2:接線圖
7. 操作
Once installed, you can control and fine-tune your subwoofer using the wired remote control.
7.1 有線遙控器
The remote control allows you to adjust key settings for optimal bass performance:
- 增益控制(最小/最大): 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.
- 低通濾波器(LPF)(30Hz-150Hz): Controls the upper frequency limit of the subwoofer. Set this to blend smoothly with your main speakers.
- 相位開關(0°/180°): 調整重低音輸出的相位。嘗試兩種設置,找到與主揚聲器低音響應最協調一致的設置。

圖 7.1:有線遙控器
8、維護保養
To ensure the longevity and optimal performance of your Junsun subwoofer, follow these maintenance guidelines:
- 打掃: 請使用柔軟的乾布清潔重低音外殼。請勿使用刺激性化學物質或研磨性清潔劑。
- 通風: 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.
- 接線檢查: Periodically check all wiring connections for tightness and signs of wear or corrosion. Loose connections can lead to poor performance or electrical issues.
- 更換保險絲: 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。 故障排除
If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram and review 以下故障排除提示。

Figure 9.1: Troubleshooting Guide (Part 1)

Figure 9.2: Troubleshooting Guide (Part 2)
10. 保固和客戶支持
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 如何聯絡支援人員
You can typically find contact information for Junsun customer support through the retailer where you purchased the product or on the official Junsun web地點。

圖 10.1:客戶支援訊息