1. Pengenalan
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. Ciri-ciri Produk
- Output Bes yang Kuat: 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. Spesifikasi
| Ciri | Perincian |
|---|---|
| Nama Model | H122X |
| Jenis Pembesar Suara | Subwufer |
| Diameter Woofer | 12 Inci |
| Kuasa Output Maksimum Pembesar Suara | 2000 Watt RMS / 4000 Watt Puncak |
| Impedans | Dwi 2-Ohm |
| Respons Kekerapan | 20 Hz (Had bawah) |
| Gegelung Suara | 3-inch, high-temperature |
| Bahan Kon | Kevlar Fiber reinforced, non-pressed paper |
| Bahan Bakul | Aluminium Tuang |
| Berat Barang | 20 paun |
| 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. Persediaan dan Pemasangan
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 Langkah Keselamatan
- Putuskan sambungan terminal bateri negatif kenderaan sebelum memulakan sebarang kerja elektrik.
- Pakai peralatan keselamatan yang sesuai, termasuk perlindungan mata.
- Pastikan semua pendawaian ditebat dan dipasang dengan betul untuk mengelakkan litar pintas dan kerosakan.
- Avoid mounting the subwoofer in locations that obstruct vehicle operation or safety features.
4.2 Keperluan Lampiran
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.
Jumlah Kepungan yang Disyorkan:
- Kandang Tertutup: Approximately 1.65 cubic feet (net volume after subwoofer displacement).
- Lampiran Beralih: Approximately 1.84 cubic feet (net volume after subwoofer displacement), tuned to 50Hz with 57.6 square inches of port area.
4.3 Wiring the Subwoofer
The H122X features a Dual 2-Ohm voice coil design, offering flexibility in wiring configurations to match your ampkeperluan impedans liifier.
Important: Always verify your amplifier's stable impedance range before wiring. Incorrect impedance can damage your amppenguat atau subwufer.
Common Wiring Configurations for Dual 2-Ohm Voice Coils:
- 1 Ohm Load (Parallel Wiring): Sambungkan terminal positif kedua-dua gegelung suara bersama-sama, dan terminal negatif kedua-dua gegelung suara bersama-sama. Sambungkan gabungan positif kepada ampoutput positif lifer dan gabungan negatif kepada amplifier's negative output. This configuration results in a 1-Ohm load.
- 4 Ohm Load (Series Wiring): Sambungkan terminal positif satu gegelung suara ke terminal negatif gegelung suara yang satu lagi. Sambungkan terminal positif yang tinggal ke ampoutput positif lifer dan baki terminal negatif kepada 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.

Imej: Atas 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. Operasi
Once installed, proper tuning of your amplifier and head unit settings will optimize the subwoofer's performance.
5.1 AmpTetapan Keuntungan Penguat
- Mulakan dengan 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.
- Perlahan-lahan tingkatkan amplifier gain until you hear distortion, then back off slightly. This ensures the amplifier is not clipping.
5.2 Tetapan 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. Penyelenggaraan
The Massive Audio H122X subwoofer is designed for durability and requires minimal maintenance.
- Pembersihan: Gunakan kain lembut dan kering untuk mengelap kon dan sekelilingnya. Elakkan menggunakan bahan kimia yang keras atau kelembapan berlebihan.
- Pemeriksaan: Periodically check all wiring connections for tightness and signs of corrosion. Ensure the subwoofer mounting bolts are secure.
- Faktor Persekitaran: Lindungi subwufer daripada suhu yang melampau, cahaya matahari langsung dan kelembapan.
7. Penyelesaian masalah
Jika anda mengalami masalah dengan subwufer anda, rujuk kepada masalah dan penyelesaian biasa berikut:
7.1 Tiada Bunyi daripada Subwoofer
- Semak Kuasa: Memastikan amplifier is receiving power (power light on). Check fuses and battery connections.
- Check Ground: Sahkan amplifier's ground connection is secure and making good contact with bare metal.
- Check RCA Cables: Pastikan kabel RCA disambungkan dengan selamat ke kedua-dua unit kepala dan 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.
- AmpTetapan penguat: Verify gain is not at minimum, LPF is enabled, and any mute functions are off.
7.2 Bunyi Herot
- Keuntungan Terlalu Tinggi: Kurangkan amplifier gain setting.
- Peningkatan Bass: Reduce or disable bass boost.
- Keratan: Memastikan amplifier is not clipping (power light may flash or change color). Reduce head unit volume or ampkeuntungan penguat.
- 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
- Tetapan Fasa: Experiment with the phase switch on your amplifier (0 or 180 degrees) to see which setting provides stronger bass.
- Tetapan Silang Silang: Adjust the LPF to a slightly higher frequency to allow more bass frequencies through.
- Tetapan Keuntungan: Bertambah amplifier gain slightly, ensuring no distortion.
- Jenis Kepungan: Ensure the enclosure type (sealed/ported) is appropriate for your desired bass response and matches the subwoofer's recommendations.
8. Waranti dan Sokongan
Massive Audio products are manufactured to high standards and come with a limited warranty against defects in materials and workmanship.
- Jenis Waranti: Waranti Terhad.
- Tempoh: Please refer to your purchase documentation or the official Massive Audio website for specific warranty periods and terms.
- Sokongan: For technical assistance, warranty claims, or further information, please contact Massive Audio customer support directly.
- Pengeluar: Massive Audio
- Webtapak: Visit the Massive Audio Store on Amazon