1. Saugos informacija
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.
- Prieš pradėdami bet kokius elektros darbus, visada atjunkite neigiamą automobilio akumuliatoriaus gnybtą.
- Įsitikinkite, kad visi laidai yra tinkamai izoliuoti ir pritvirtinti, kad išvengtumėte trumpojo jungimo ir pažeidimų.
- Avoid installing the subwoofer in locations where it may be exposed to moisture or excessive heat.
- Optimaliam našumui ir saugumui rekomenduojamas profesionalus montavimas.
- Do not operate the subwoofer at excessively high volumes for prolonged periods, as this may cause hearing damage.
2. Kas yra dėžutėje
Your Jensen J4W12 package includes the following items:
- 1 x Jensen J4W12 Subwoofer
3. Produkto ypatybės
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.
- Žemo rezonanso krepšelio dizainas: Isolates unnecessary vibrations for consistent low resonance and accurate bass.
- Plieno g.ampSustiprinta konstrukcija: 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.

Vaizdas: priekis view of the Jensen J4W12 12-inch subwoofer, showcasing its distinctive blue woofer cone and black rubber surround.
4. Sąranka ir diegimas
Proper installation is crucial for the performance and longevity of your subwoofer. Follow these guidelines for a successful setup.
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 Sujungimo schema
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 Įdiegimo vaizdo įrašas
Watch this official video for a visual guide on the Jensen J4W12 subwoofer.
Vaizdo įrašas: oficialus produkto vaizdo įrašasasing the Jensen J4W12 12-inch subwoofer, highlighting its features and design.
5. Naudojimo instrukcijos
Once installed, follow these steps to operate your subwoofer and integrate it with your car audio system.
- Pradinis įjungimas: After installation, turn on your car audio system. Start with the amplifier gain and head unit volume at their lowest settings.
- Stiprumo reguliavimas: Palaipsniui didinkite 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.
- Crossover nustatymai: Naudokite savo 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.
- Fazių valdymas: Paeksperimentuokite su fazės jungikliu (0° arba 180°) savo amplifier to find the setting that provides the most impactful and cohesive bass response with your other speakers.
- Žemų dažnių stiprinimas: The J4W12 features Bass Boost. Use this feature sparingly and with caution to avoid overdriving the subwoofer.
- Įrenginio suderinamumas: 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. Priežiūra
To ensure the longevity and optimal performance of your Jensen J4W12 subwoofer, follow these simple maintenance tips:
- Valymas: Regularly wipe the subwoofer cone and surround with a soft, dry cloth to remove dust and debris. Avoid using harsh chemicals or abrasive cleaners.
- Patikra: 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.
- Aplinkos apsauga: 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.
- Tinkamas naudojimas: Avoid continuously playing the subwoofer at maximum volume or with excessive bass boost, as this can lead to overheating and premature failure.
7. Problemų sprendimas
If you encounter issues with your Jensen J4W12 subwoofer, refer to the following troubleshooting guide:
7.1 No Sound from Subwoofer
- Patikrinkite galią: Užtikrinti, amplifier is receiving power and its power indicator light is on. Check the fuse on the amplifier and in the vehicle's power line.
- Patikrinkite jungtis: Verify all wiring connections (power, ground, remote, RCA, speaker wires) are secure and correctly connected.
- AmpLifterio nustatymai: Patvirtinkite amplifier's gain is not set to minimum, and the crossover is correctly configured (e.g., LPF enabled).
- Head Unit Output: Ensure the head unit is sending an audio signal to the amplifier (check RCA connections and head unit settings).
7.2 Distorted or Weak Bass
- Stiprinimo nustatymas: Sumažinti amplifier's gain if the sound is distorted. If the bass is weak, gradually increase the gain.
- Crossover reguliavimas: Sureguliuokite žemųjų dažnių filtrą (LPF) savo įrenginyje. amplifier or head unit. If the LPF is set too high, the subwoofer may play frequencies it's not designed for, causing distortion.
- Phase Setting: Try switching the phase (0° or 180°) on your amplifier. Incorrect phase can cause bass cancellation.
- Korpuso vientisumas: Check the subwoofer enclosure for any air leaks or damage, which can negatively impact bass performance.
- Maitinimas: 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. Specifikacijos
Detailed technical specifications for the Jensen J4W12 12-inch Subwoofer:
| Funkcija | Specifikacija |
|---|---|
| Modelio numeris | J4W12 |
| Prekės ženklas | Jensenas |
| Žemųjų dažnių garsiakalbio dydis | 12 colių |
| Didžiausia galia | 1200 vatų |
| RMS galia | 300 vatų |
| Varža | 4 omai |
| Žemų dažnių garsiakalbio kūgio medžiaga | Polipropilenas |
| Erdvinė medžiaga | Double Stitched Rubber Injected |
| Basket Design | Low Resonance, Steel Stamped Reinforced |
| Ryšio technologija | Laidinis |
| Ypatinga funkcija | Bass Boost |
| Gaminio matmenys | 11 x 11 x 5.75 colio |
| Prekės svoris | 10.32 svaro |
| Spalva | Mėlyna |
| UPC | 827204121863 |
9. Garantija
The Jensen J4W12 subwoofer comes with a standard 2 metų garantija. This warranty can be extended to a 3 metų garantija 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. Parama
For technical assistance, troubleshooting, or warranty inquiries, please contact Jensen customer support:
- Websvetainė: Apsilankykite www.jensenmobile.com produktų informacijos, DUK ir pagalbos išteklių.
- Registracija internetu: Register your product online to activate your extended warranty and receive important updates.





