1. Información de seguridad
Please read all instructions carefully before installing and operating your Jensen J4W12 subwoofer. Failure to follow these instructions may result in serious injury or damage to the product or vehicle.
- Desconecte siempre el terminal negativo de la batería del vehículo antes de comenzar cualquier trabajo eléctrico.
- Asegúrese de que todo el cableado esté adecuadamente aislado y asegurado para evitar cortocircuitos y daños.
- Avoid installing the subwoofer in locations where it may be exposed to moisture or excessive heat.
- Se recomienda la instalación profesional para un rendimiento y seguridad óptimos.
- No utilice el subwoofer a volúmenes excesivamente altos durante períodos prolongados, ya que esto puede provocar daños auditivos.
2. ¿Qué hay en la caja?
Your Jensen J4W12 package includes the following items:
- 1 x Jensen J4W12 Subwoofer
3. Características del producto
The Jensen J4W12 subwoofer is engineered to deliver powerful and clear bass for your car audio system.
- 12-Inch High Performance Polypropylene Subwoofer: Designed to provide deep and profound bass.
- Double Stitched Rubber Injected Surround: Ensures accurate and loud music with better heat resistance, internal damping, enhanced bass response, and reliability during high excursion rates.
- Diseño de cesta de baja resonancia: Isolates unnecessary vibrations for consistent low resonance and accurate bass.
- Calle de aceroampEstructura reforzada: Strong and flexible design to increase linearity and allow greater movement at peak demands for studio-quality sound.
- Digitally Optimized Subwoofer: Engineered for efficient, low-sounding bass, generating 1,200 Watts Peak Power (300 Watts RMS) at 4 Ohms.

Imagen: Frente view of the Jensen J4W12 12-inch subwoofer, showcasing its distinctive blue woofer cone and black rubber surround.
4. Configuración e instalación
Una instalación correcta es crucial para el rendimiento y la durabilidad de su subwoofer. Siga estas pautas para una configuración exitosa.
4.1 Mounting Flexibility
The J4W12 is designed to work effectively in both sealed and ported enclosures. Choose an enclosure type that best suits your desired bass response and vehicle space.

Image: Jensen J4W12 subwoofer mounted within a ported enclosure, positioned in the trunk of a vehicle, demonstrating a typical installation scenario.
4.2 Diagrama de cableado
Refer to the following diagram for proper wiring of your J4W12 subwoofer to an amplifier and head unit. Ensure all connections are secure and correctly polarized.

Image: A detailed wiring diagram illustrating the connection of the Jensen J4W12 subwoofer to a digital mono amplifier, which is then connected via RCA cables to a car head unit, and power/ground/remote wires to the car battery.
4.3 vídeos de instalación
Watch this official video for a visual guide on the Jensen J4W12 subwoofer.
Vídeo: Un vídeo oficial del producto que muestraasing the Jensen J4W12 12-inch subwoofer, highlighting its features and design.
5. Instrucciones de funcionamiento
Once installed, follow these steps to operate your subwoofer and integrate it with your car audio system.
- Encendido inicial: After installation, turn on your car audio system. Start with the ampGanancia del amplificador y volumen de la unidad principal en sus configuraciones más bajas.
- Ajuste de ganancia: Aumente gradualmente la amplifier gain until you achieve the desired bass level without distortion. Avoid setting the gain too high, as this can lead to clipping and damage.
- Configuración de cruce: Utilice su amplifier's or head unit's crossover settings to filter out high frequencies from the subwoofer, allowing it to reproduce only the low-frequency sounds it's designed for. A typical low-pass filter setting for a subwoofer is between 80Hz and 120Hz.
- Control de fase: Experimente con el interruptor de fase (0° o 180°) en su amplifier to find the setting that provides the most impactful and cohesive bass response with your other speakers.
- Refuerzo de graves: The J4W12 features Bass Boost. Use this feature sparingly and with caution to avoid overdriving the subwoofer.
- Compatibilidad del dispositivo: The subwoofer is designed to integrate with car audio systems that can be connected to various devices such as smartphones, tablets, and laptops via the head unit.
6. Mantenimiento
To ensure the longevity and optimal performance of your Jensen J4W12 subwoofer, follow these simple maintenance tips:
- Limpieza: Regularly wipe the subwoofer cone and surround with a soft, dry cloth to remove dust and debris. Avoid using harsh chemicals or abrasive cleaners.
- Inspección: Periodically check the wiring connections to ensure they are tight and free from corrosion. Inspect the subwoofer surround for any signs of cracks or damage.
- Protección ambiental: Keep the subwoofer away from direct sunlight, extreme temperatures, and moisture. If installed in a trunk, ensure it is not exposed to heavy objects that could cause physical damage.
- Uso adecuado: Avoid continuously playing the subwoofer at maximum volume or with excessive bass boost, as this can lead to overheating and premature failure.
7. Solución de problemas
If you encounter issues with your Jensen J4W12 subwoofer, refer to the following troubleshooting guide:
7.1 No hay sonido del subwoofer
- Comprobar potencia: Asegúrese de que amplifier is receiving power and its power indicator light is on. Check the fuse on the amplifier and in the vehicle's power line.
- Comprobar conexiones: Verify all wiring connections (power, ground, remote, RCA, speaker wires) are secure and correctly connected.
- AmpConfiguración del amplificador: Confirmar el amplifier's gain is not set to minimum, and the crossover is correctly configured (e.g., LPF enabled).
- Salida de la unidad principal: Asegúrese de que la unidad principal esté enviando una señal de audio a la amplifier (check RCA connections and head unit settings).
7.2 Distorted or Weak Bass
- Ajuste de ganancia: Reducir la amplifier's gain if the sound is distorted. If the bass is weak, gradually increase the gain.
- Ajuste de cruce: Ajuste el filtro de paso bajo (LPF) en su amplifier or head unit. If the LPF is set too high, the subwoofer may play frequencies it's not designed for, causing distortion.
- Ajuste de fase: Try switching the phase (0° or 180°) on your amplifier. Incorrect phase can cause bass cancellation.
- Integridad del recinto: Check the subwoofer enclosure for any air leaks or damage, which can negatively impact bass performance.
- Fuente de alimentación: Ensure your vehicle's electrical system can adequately supply power to the amplifier. A weak power supply can lead to weak or distorted bass.
8. Especificaciones
Detailed technical specifications for the Jensen J4W12 12-inch Subwoofer:
| Característica | Especificación |
|---|---|
| Número de modelo | J4W12 |
| Marca | Jensen |
| Tamaño del subwoofer | 12 pulgadas |
| Potencia máxima | 1200 vatios |
| Potencia RMS | 300 vatios |
| Impedancia | 4 ohmios |
| Material del cono de woofer | Polipropileno |
| Material envolvente | Double Stitched Rubber Injected |
| Basket Design | Low Resonance, Steel Stamped Reinforced |
| Tecnología de conectividad | Cableado |
| Característica especial | Bass Boost |
| Dimensiones del producto | 11 x 11 x 5.75 pulgadas |
| Peso del artículo | 10.32 libras |
| Color | Azul |
| Código Postal | 827204121863 |
9. Garantía
The Jensen J4W12 subwoofer comes with a standard 2 año de garantía. This warranty can be extended to a 3 año de garantía when registered online with Jensenmobile.com.
Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accident, modification, improper installation, or unauthorized repair.
10. Soporte
For technical assistance, troubleshooting, or warranty inquiries, please contact Jensen customer support:
- Websitio: Visita www.jensenmobile.es para obtener información sobre productos, preguntas frecuentes y recursos de soporte.
- Inscripción en línea: Register your product online to activate your extended warranty and receive important updates.