pengenalan
This manual provides essential information for the proper installation, operation, and maintenance of your DD Audio 812F-D1 12-inch Dual 1-Ohm 7500W Subwoofer. Please read these instructions thoroughly before attempting to install or operate the subwoofer to ensure optimal performance and longevity.
Ciri-ciri Utama
- Pengurusan Terma Lanjutan: Features a vented aluminum voice coil insert and finned aluminum heatsink designed to efficiently dissipate heat from critical components, ensuring sustained high-performance operation.
- Enhanced Excursion Capability: Equipped with a taller surround, double-stitched to a fiberglass-loaded, non-pressed cone, and a voice coil with increased winding length, supported by a double-layer spider for greater Xmax.
- Pembinaan Teguh: Engineered for durability and high power handling, converting raw power into clean audio output.
- Reka bentuk estetik: The heatsink features polished aluminum DD logos, and the motor is encased in an embossed rubber boot.
Spesifikasi
Imej 1: Depan view of the DD Audio 812F-D1 subwoofer, showcasing kon dan keliling.
| Spesifikasi | Nilai |
|---|---|
| Saiz Pembesar Suara | 12 Inci |
| Watt RMS | 2500W |
| Watts Peak | 7500W |
| Impedans | Dual 1-Ohm (D1) |
| Voice Coil Diameter (VCD) | 4 Inci |
| Diameter Piston | 10.25 Inci |
| Fs (Resonance Frequency) | 34 Hz |
| Qms (Mechanical Q Factor) | 6.282 |
| Qes (Electrical Q Factor) | 0.601 |
| Qts (Total Q Factor) | 0.548 |
| Vas (Equivalent Volume) | 18.84 Liter |
| Xmech (Mechanical Excursion) | 100 MM |
| Xmax (Persiaran Linear) | 31 MM |
| Frame OD (Outer Diameter) | 12.625 Inci |
| Frame OD w/Gasket | 12.875 Inci |
| Diameter Pemasangan | 11.34 Inci |
| Kedalaman Pemasangan | 11 Inci |
| Diameter Motor | 9.45 Inci |
| Motor Depth | 5.8 Inci |
| Recommended Ported Enclosure Volume | 1.75 - 3.0 CuFt |
| Berat Barang | 80 paun |
| bahan | aluminium |
Persediaan dan Pemasangan
Proper installation is crucial for the performance and longevity of your subwoofer. If you are unsure about any steps, it is recommended to seek assistance from a professional installer.
1. Enclosure Selection and Construction
The DD Audio 812F-D1 is designed for optimal performance in a ported enclosure. Refer to the specifications section for recommended enclosure volumes (1.75 - 3.0 CuFt). Ensure the enclosure is robust, sealed properly, and adequately braced to prevent rattles and resonance. The mounting diameter required is 11.34 inches and mounting depth is 11 inches.
Imej 2: Bersudut view of the DD Audio 812F-D1 subwoofer, highlighting the robust motor structure.
2. Wiring and Impedance
This subwoofer features a Dual 1-Ohm voice coil configuration. It is critical to wire the voice coils correctly to achieve the desired impedance load for your amplifier. Common wiring configurations include:
- Pendawaian Selari (0.5 Ohm): Connect positive to positive and negative to negative terminals of both voice coils. This results in a 0.5 Ohm load, which requires an amplifier stable at this impedance.
- Series Wiring (2 Ohm): Connect the positive of one voice coil to the negative of the other. The remaining positive and negative terminals are then connected to the amplifier. This results in a 2 Ohm load.
Sentiasa pastikan anda amplifier is stable at the chosen impedance. Using an amplifier with an impedance lower than its stable rating can cause damage to both the amppenguat dan subwufer.
3. AmpPemadanan liifier
Match the subwoofer's RMS power handling (2500W) with an amplifier that can provide sufficient clean power at the selected impedance. Underpowering a subwoofer can be as damaging as overpowering it, as it can lead to ampkeratan lampu dan isyarat herot.
4. Secure Mounting
Mount the subwoofer securely within the enclosure using appropriate fasteners. Ensure there is no air leakage around the mounting flange.
Arahan Operasi
Follow these guidelines for safe and optimal operation of your subwoofer.
- Tempoh Pecah Masuk: Allow a break-in period of approximately 20-30 hours of moderate listening before operating the subwoofer at high volumes. This allows the suspension components to loosen and perform optimally.
- Tetapan Keuntungan: Tetapkan ampkeuntungan liifier dengan betul untuk memadankan vol keluarantage of your head unit. Incorrect gain settings can lead to clipping and damage. Use a digital multimeter or oscilloscope for precise gain setting.
- Tetapan Crossover: Utilize a low-pass filter (LPF) on your amplifier or head unit to send only low frequencies to the subwoofer. A typical starting point for LPF is 60-80 Hz.
- Penapis Subsonik: Use a subsonic filter (high-pass filter for the subwoofer) to protect the subwoofer from playing frequencies below its tuning frequency, which can cause excessive excursion and damage.
- Dengar Penyelewengan: If you hear any distortion, rattling, or unusual noises, immediately reduce the volume. Continuous operation with distortion can cause permanent damage.
Image 3: Rear angled view of the DD Audio 812F-D1 subwoofer, showing the motor and terminal connections.
Penyelenggaraan
The DD Audio 812F-D1 subwoofer requires minimal maintenance to ensure long-term performance.
- Pemeriksaan Berkala: Periodically inspect the subwoofer cone, surround, and dust cap for any signs of damage, tears, or punctures.
- Kebersihan: Keep the subwoofer free from dust and debris. Use a soft, dry cloth to gently wipe surfaces. Avoid using harsh chemicals or excessive moisture.
- Semakan Sambungan: Ensure all wiring connections remain secure and free from corrosion. Loose connections can lead to signal loss or damage.
- Perlindungan Alam Sekitar: Protect the subwoofer from extreme temperatures, direct sunlight, and moisture, which can degrade materials over time.
Menyelesaikan masalah
If you experience issues with your subwoofer, consult the following common troubleshooting steps.
- Tiada Bunyi:
- Periksa semua sambungan kuasa dan tanah ke amplebih hidup.
- Verify RCA signal cables are securely connected from the head unit to the amplebih hidup.
- Memastikan amplifier is powered on (check power indicator light).
- Confirm the subwoofer wires are correctly connected to the amplifier and the subwoofer terminals.
- Semak ampfius pencair.
- Bunyi Herot:
- Kurangkan amplifier gain setting.
- Check for proper crossover settings; ensure the subwoofer is not playing frequencies too high.
- Inspect the subwoofer cone and surround for physical damage.
- Memastikan amplifier is not clipping (indicated by a clipping light on some amppenyelamat).
- Output Bes Lemah:
- Sahkan amplifier gain is set appropriately.
- Check phase settings on the ampliifier atau unit kepala.
- Ensure the enclosure is sealed and properly constructed.
- Confirm correct wiring impedance for the amplebih hidup.
- Subwoofer Overheating:
- Reduce volume and allow the subwoofer to cool.
- Sahkan amplifier is matched correctly to the subwoofer's RMS power handling.
- Pastikan pengudaraan yang mencukupi di sekeliling amppenguat dan subwufer.
- Check for proper impedance matching.
Imej 4: Bawah view of the DD Audio 812F-D1 subwoofer motor, showing the heatsink design.
Maklumat Waranti
The DD Audio 812F-D1 Subwoofer comes with a Waranti Terhad. Specific terms and conditions of the warranty are typically provided with the product packaging or can be obtained from the manufacturer's official webtapak. Sila simpan bukti pembelian anda untuk sebarang tuntutan waranti.
This warranty generally covers defects in materials and workmanship under normal use. It typically does not cover damage resulting from improper installation, abuse, accident, neglect, unauthorized repair, or modifications.
Sokongan
For further assistance, technical support, or warranty inquiries, please contact DD Audio customer support or the authorized retailer from whom you purchased the product. Refer to the official DD Audio webtapak untuk maklumat hubungan dan sumber tambahan.
Note: Always ensure to provide your product model (812F-D1) and proof of purchase when contacting support.
