1. Bubuka
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. Émbaran Kasalametan
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.
- Ulah masang subwoofer di tempat anu ngahalangan sora supir view atanapi ngaganggu operasi kendaraan.
- Hindarkeun ngalaan subwoofer ka lembab atanapi suhu anu ekstrim.
- Upami anjeun teu yakin kana bagian mana waé tina prosés pamasangan, milarian bantosan profésional.
3. Eusi Paket
Pastikeun yén sadaya item aya dina bungkusan sateuacan neraskeun pamasangan.
- 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)
- Kadali jauh (1 pc)

Figure 3.1: Included Components and Wiring Kit
4. Fitur Produk
- 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.
- Kasaluyuan kandaraan lega: 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. Spésifikasi

Figure 5.1: Panel Features and Specifications
| Fitur | Nilai |
|---|---|
| Ngaran modél | JS-US-SUB1206 |
| Tipe Speaker | Subwoofer |
| Kakuatan RMS | 220W |
| MAX Kakuatan | 800W |
| THD | <1.0% |
| Rasio Signal-to-Noise | > 91dB |
| Réspon Frékuénsi | 20Hz-150Hz |
| Input Sensitivity (High Level) | 1V |
| Input Sensitivity (Low Level) | 0.4V |
| Low Pass Filter | 50Hz-150Hz |
| Naekeun Bass | 0 dugi ka + 12dB |
| Saringan Subsonik | 20Hz |
| Peunteun sekering | 30A |
| Diaméter Subwoofer | 12 inci |
| Dimensi produk | 2.95 "D x 10.24" W x 13.58" H |
| Bahan | alumunium |
6. Pamasangan
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:
- Nyiapkeun Kendaraan: Disconnect the negative terminal of your car battery. Locate your spare tire well.
- Pasang 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.
- Kabel kakuatan: 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.
- Kabel taneuh: 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.
- Masukan Sinyal: 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.
- Ngahurungkeun Jauh: Connect the remote turn-on wire to a switched 12V source from your head unit (e.g., amplifier remote output).
- Sambungkeun Remote Control: Attach the included wired remote control to the subwoofer. Route the cable to a convenient location for easy access while driving.
- Cék ahir: Double-check all connections for security and proper polarity. Reconnect the negative battery terminal.

Figure 6.1: Subwoofer Placement in Spare Tire Well

Gambar 6.2: Diagram Kabel
7. Operasi
Once installed, you can control and fine-tune your subwoofer using the wired remote control.
7.1 Wired Remote Control
The remote control allows you to adjust key settings for optimal bass performance:
- Kontrol Gain (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.
- Saklar Fase (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. Pangropéa
To ensure the longevity and optimal performance of your Junsun subwoofer, follow these maintenance guidelines:
- beberesih: Anggo lawon anu lemes sareng garing pikeun ngabersihkeun bagian luar subwoofer. Entong nganggo bahan kimia anu keras atanapi pembersih anu kasar.
- Ventilasi: 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.
- Pamariksaan kabel: Periodically check all wiring connections for tightness and signs of wear or corrosion. Loose connections can lead to poor performance or electrical issues.
- Ngagantian sekering: 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. Cara ngungkulan
If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram and review tips ngungkulan handap.

Figure 9.1: Troubleshooting Guide (Part 1)

Figure 9.2: Troubleshooting Guide (Part 2)
10. Garansi sarta Rojongan Palanggan
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 Kumaha Ngahubungi Dukungan
You can typically find contact information for Junsun customer support through the retailer where you purchased the product or on the official Junsun websitus.

Gambar 10.1: Inpormasi Dukungan Palanggan