Танилцуулга
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.
Гол онцлогууд
- Дэвшилтэт дулааны менежмент: 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.
- Бат бөх барилга: Engineered for durability and high power handling, converting raw power into clean audio output.
- Гоо сайхны дизайн: The heatsink features polished aluminum DD logos, and the motor is encased in an embossed rubber boot.
Үзүүлэлтүүд

Зураг 1: Урд view DD Audio 812F-D1 сабвуферын, showcasing конус болон хүрээ.
| Тодорхойлолт | Үнэ цэнэ |
|---|---|
| Чанга яригчийн хэмжээ | 12 инч |
| Ватт RMS | 2500 Вт |
| Ваттс оргил | 7500 Вт |
| Эсэргүүцэл | Хос 1-Ом (D1) |
| Дуут ороомгийн диаметр (VCD) | 4 инч |
| Поршений диаметр | 10.25 инч |
| Fs (Резонансын давтамж) | 34 Гц |
| Qms (Mechanical Q Factor) | 6.282 |
| Qes (Electrical Q Factor) | 0.601 |
| Qts (Total Q Factor) | 0.548 |
| Вас (Эквивалент эзэлхүүн) | 18.84 литр |
| Xmech (Механик аялал) | 100 мм |
| Xmax (шугаман аялал) | 31 мм |
| Хүрээний OD (Гаднах диаметр) | 12.625 инч |
| Жийргэвчтэй хүрээ OD | 12.875 инч |
| Холбох диаметр | 11.34 инч |
| Суурилуулах гүн | 11 инч |
| Моторын диаметр | 9.45 инч |
| Моторын гүн | 5.8 инч |
| Зөвлөмж болгож буй порттой хаалтны эзэлхүүн | 1.75 - 3.0 CuFt |
| Зүйлийн жин | 80 фунт |
| Материал | Хөнгөн цагаан |
Тохиргоо ба суурилуулалт
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. Хашааны сонголт ба барилга
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.

Зураг 2: Өнцөг 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:
- Parallel Wiring (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.
Өөрийгөө үргэлж баталгаажуул amplifier is stable at the chosen impedance. Using an amplifier with an impedance lower than its stable rating can cause damage to both the ampөргөгч ба сабвуфер.
3. Amplifier Matching
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 amplifier clipping and distorted signals.
4. Secure Mounting
Mount the subwoofer securely within the enclosure using appropriate fasteners. Ensure there is no air leakage around the mounting flange.
Ашиглалтын заавар
Follow these guidelines for safe and optimal operation of your subwoofer.
- Завсарлага авах хугацаа: 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.
- Өсгөлтийн тохиргоо: -г тохируулах ampгаралтын эзэлхүүнтэй зөв тохирохын тулд өргөгч олшруулагчийг зөвtage of your head unit. Incorrect gain settings can lead to clipping and damage. Use a digital multimeter or oscilloscope for precise gain setting.
- Кроссоверын тохиргоо: 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.
- Дуу чимээний шүүлтүүр: 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.
- Гажуудлыг сонсох: 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.
Засвар үйлчилгээ
The DD Audio 812F-D1 subwoofer requires minimal maintenance to ensure long-term performance.
- Тогтмол үзлэг: Periodically inspect the subwoofer cone, surround, and dust cap for any signs of damage, tears, or punctures.
- Цэвэр байдал: Keep the subwoofer free from dust and debris. Use a soft, dry cloth to gently wipe surfaces. Avoid using harsh chemicals or excessive moisture.
- Холболт шалгах: Ensure all wiring connections remain secure and free from corrosion. Loose connections can lead to signal loss or damage.
- Байгаль орчныг хамгаалах: Protect the subwoofer from extreme temperatures, direct sunlight, and moisture, which can degrade materials over time.
Алдааг олж засварлах
If you experience issues with your subwoofer, consult the following common troubleshooting steps.
- Дуугүй:
- Бүх цахилгаан болон газардуулгын холболтыг шалгана уу ampнастан.
- Verify RCA signal cables are securely connected from the head unit to the ampнастан.
- -ийг баталгаажуулах ampөргөгч асаалттай байна (цахилгаан заагчийн гэрлийг шалгана уу).
- Confirm the subwoofer wires are correctly connected to the amplifier and the subwoofer terminals.
- Шалгах ampөргөгч гал хамгаалагч.
- Гажуудсан дуу:
- -ийг багасгах ampөргөгч хүчийг тохируулах.
- Check for proper crossover settings; ensure the subwoofer is not playing frequencies too high.
- Inspect the subwoofer cone and surround for physical damage.
- -ийг баталгаажуулах amplifier is not clipping (indicated by a clipping light on some ampамьд хүмүүс).
- Сул басс гаралт:
- Баталгаажуулах amplifier gain is set appropriately.
- Check phase settings on the ampөргөгч эсвэл толгойн хэсэг.
- Ensure the enclosure is sealed and properly constructed.
- Confirm correct wiring impedance for the ampнастан.
- Сабвуфер хэт халалт:
- Reduce volume and allow the subwoofer to cool.
- Баталгаажуулах amplifier is matched correctly to the subwoofer's RMS power handling.
- Ойролцоох хангалттай агааржуулалтыг хангах ampөргөгч ба сабвуфер.
- Check for proper impedance matching.

Зураг 4: Доод талд view of the DD Audio 812F-D1 subwoofer motor, showing the heatsink design.
Баталгаат хугацааны мэдээлэл
The DD Audio 812F-D1 Subwoofer comes with a Хязгаарлагдмал баталгаат хугацаа. Specific terms and conditions of the warranty are typically provided with the product packaging or can be obtained from the manufacturer's official webсайт. Аливаа баталгаат нэхэмжлэлийн хувьд худалдан авалтаа нотлох баримтаа хадгална уу.
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.
Дэмжлэг
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 webхолбоо барих мэдээлэл болон нэмэлт эх сурвалжийн сайт.
Note: Always ensure to provide your product model (812F-D1) and proof of purchase when contacting support.





