1. Introducere
This manual provides detailed instructions for the installation, operation, and maintenance of your Massive Audio H122X 12-inch 2000W RMS Dual 2-Ohm Car Subwoofer. Please read this manual thoroughly before installation and use to ensure optimal performance and longevity of your product.
The Massive Audio H122X is designed for high-output car audio systems, featuring a 3-inch voice coil, Kevlar-reinforced cone, and a heavy-duty cast basket for robust performance and deep, accurate bass reproduction.
2. Caracteristicile produsului
- Powerful Bass Output: 2000W RMS / 4000W peak power delivers thunderous, clean bass for competition-level car audio systems.
- Dual 2-Ohm Design: Flexible wiring for maximum performance and amplifier compatibility in high-power setups.
- 3-inch Voice Coil: Heavy-duty high-temp coil ensures power handling, durability, and superior heat dissipation.
- Kevlar-Reinforced Cone: Non-press paper cone with Kevlar fibers and stitched surround delivers strength and deep, accurate bass.
- Competition Build Quality: Rugged cast aluminum basket and heavy magnet structure built for extreme SPL and long-term reliability.
3. Specificații
| Caracteristică | Detaliu |
|---|---|
| Numele modelului | H122X |
| Tip difuzor | Subwoofer |
| Diametrul wooferului | 12 inchi |
| Putere maximă de ieșire difuzor | 2000 de wați RMS / 4000 de wați de vârf |
| Impedanta | Dual 2-Ohm |
| Raspuns in frecventa | 20 Hz (Limita inferioară) |
| Bobina vocală | 3-inch, high-temperature |
| Material con | Kevlar Fiber reinforced, non-pressed paper |
| Material coș | Aluminiu turnat |
| Greutatea articolului | 20 lire sterline |
| Recommended Enclosure (Sealed) | 1.65 cubic feet after displacement (0.095) |
| Recommended Enclosure (Ported) | 1.84 cubic feet after displacement, tuned to 50Hz, 57.6 square inches of port area |
4. Configurare și instalare
Proper installation is crucial for the performance and safety of your subwoofer. If you are unsure about any steps, consult a professional car audio installer.
4.1 Măsuri de siguranță
- Deconectați borna negativă a bateriei vehiculului înainte de a începe orice lucrare electrică.
- Purtați echipament de protecție adecvat, inclusiv protecție pentru ochi.
- Asigurați-vă că toate cablurile sunt izolate și fixate corespunzător pentru a preveni scurtcircuitele și deteriorarea.
- Avoid mounting the subwoofer in locations that obstruct vehicle operation or safety features.
4.2 Cerințe privind carcasa
The Massive Audio H122X subwoofer requires a properly designed enclosure for optimal performance. Refer to the specifications section for recommended enclosure volumes and port tuning for both sealed and ported designs.
Volumele recomandate ale carcasei:
- Carcasă etanșată: Approximately 1.65 cubic feet (net volume after subwoofer displacement).
- Carcasă portată: Approximately 1.84 cubic feet (net volume after subwoofer displacement), tuned to 50Hz with 57.6 square inches of port area.
4.3 Cablarea subwooferului
The H122X features a Dual 2-Ohm voice coil design, offering flexibility in wiring configurations to match your ampcerințele de impedanță ale transformatorului.
Important: Always verify your amplifier's stable impedance range before wiring. Incorrect impedance can damage your ampamplificator sau subwoofer.
Common Wiring Configurations for Dual 2-Ohm Voice Coils:
- Sarcină de 1 Ohm (cablare paralelă): Conectați bornele pozitive ale ambelor bobine vocale împreună și bornele negative ale ambelor bobine vocale împreună. Conectați borna pozitivă combinată la amprezultatul pozitiv al lifier-ului și rezultatul negativ combinat al amplifier's negative output. This configuration results in a 1-Ohm load.
- Sarcină de 4 ohmi (cablare în serie): Conectați terminalul pozitiv al unei bobine vocale la terminalul negativ al celeilalte bobine vocale. Conectați terminalul pozitiv rămas la ampieșirea pozitivă a transformatorului și terminalul negativ rămas la amplifier's negative output. This configuration results in a 4-Ohm load.
WARNING: Ensure all connections are secure and properly insulated to prevent short circuits.

Imagine: Sus view of the Massive Audio H122X 12-inch subwoofer. The image displays the black cone with a textured finish, surrounded by a durable rubber surround with visible red stitching. The center features a carbon fiber-patterned dust cap with the red Massive Audio logo. The outer frame of the subwoofer is black with mounting holes visible.
5. Funcționare
Once installed, proper tuning of your amplifier and head unit settings will optimize the subwoofer's performance.
5.1 Amplifier Gain Setting
- Începe cu amplifier gain set to minimum.
- Play a familiar track with strong bass content.
- Increase the head unit volume to about 75-80% of its maximum.
- Creșteți încet amplifier gain until you hear distortion, then back off slightly. This ensures the amplifier is not clipping.
5.2 Setări Crossover
- Set the Low-Pass Filter (LPF) on your amplifier or head unit. A common starting point for subwoofers is between 80Hz and 100Hz.
- Adjust the LPF to blend smoothly with your main speakers, avoiding gaps or overlaps in frequency response.
5.3 Bass Boost and Equalization
- Use bass boost sparingly, if at all. Excessive bass boost can lead to distortion and damage.
- Adjust equalization settings on your head unit to fine-tune the bass response to your preference, ensuring the sound remains clear and undistorted.
6. Întreținere
The Massive Audio H122X subwoofer is designed for durability and requires minimal maintenance.
- curatenie: Use a soft, dry cloth to wipe down the cone and surround. Avoid using harsh chemicals or excessive moisture.
- Inspecţie: Periodically check all wiring connections for tightness and signs of corrosion. Ensure the subwoofer mounting bolts are secure.
- Factori de mediu: Protejați subwooferul de temperaturi extreme, lumina directă a soarelui și umiditate.
7. Depanare
Dacă întâmpinați probleme cu subwooferul, consultați următoarele probleme și soluții comune:
7.1 No Sound from Subwoofer
- Verificați puterea: Asigurați amplifier is receiving power (power light on). Check fuses and battery connections.
- Verificați terenul: Verificați amplifier's ground connection is secure and making good contact with bare metal.
- Check RCA Cables: Asigurați-vă că cablurile RCA sunt conectate în siguranță atât la unitatea principală, cât și la amplifier. Test with another audio source if possible.
- Check Speaker Wires: Confirm subwoofer wires are correctly connected to both the subwoofer and amplifier, with no shorts.
- AmpSetări liifier: Verify gain is not at minimum, LPF is enabled, and any mute functions are off.
7.2 Sunet distorsionat
- Gain Too High: Reduceți ampsetarea câștigului lifterului.
- amplificare a basului: Reduce or disable bass boost.
- Tăiere: Asigurați amplifier is not clipping (power light may flash or change color). Reduce head unit volume or ampcâştig lifier.
- Enclosure Issues: Check for air leaks in the enclosure or if the enclosure is too small/large for the subwoofer.
- Damaged Subwoofer: If distortion persists at low volumes and proper settings, the subwoofer may be damaged.
7.3 Weak or Lackluster Bass
- Phase Setting: Experiment with the phase switch on your amplifier (0 or 180 degrees) to see which setting provides stronger bass.
- Setare crossover: Adjust the LPF to a slightly higher frequency to allow more bass frequencies through.
- Setare câștig: Crește amplifier gain slightly, ensuring no distortion.
- Tip carcasă: Ensure the enclosure type (sealed/ported) is appropriate for your desired bass response and matches the subwoofer's recommendations.
8. Garanție și asistență
Massive Audio products are manufactured to high standards and come with a limited warranty against defects in materials and workmanship.
- Tip garantie: Garanție limitată.
- Durată: Please refer to your purchase documentation or the official Massive Audio website for specific warranty periods and terms.
- Sprijin: For technical assistance, warranty claims, or further information, please contact Massive Audio customer support directly.
- Producător: Massive Audio
- Website: Visit the Massive Audio Store on Amazon