مقدمه
Thank you for choosing the DD Audio 512E-D4 12-inch Dual 4-Ohm Subwoofers. This manual provides essential information for the proper installation, operation, and maintenance of your subwoofers. Please read this manual thoroughly before installation to ensure optimal performance and longevity of your product.

Image: Two DD Audio 512E-D4 12-inch subwoofers, front view، نمایشasing the cone and surround with the DD Audio logo.
راه اندازی و نصب
Proper installation is crucial for the performance and safety of your subwoofers. If you are unsure about any part of the installation process, it is recommended to seek assistance from a professional installer.
باز کردن بسته بندی
Carefully remove the subwoofers from their packaging. Inspect them for any signs of damage that may have occurred during shipping. Retain the packaging for future transport or storage.
ملاحظات نصب
The DD Audio 512E-D4 subwoofers are designed for flush mounting. Ensure the mounting surface is rigid and capable of supporting the weight of the subwoofer. Refer to the specifications section for precise mounting dimensions.
- قطر نصب: 11.02 اینچ
- عمق نصب: 6.5 اینچ
توصیه های محوطه
For optimal sound quality and performance, these subwoofers are best utilized in a ported enclosure. The recommended volume for a ported enclosure is between 1.75 and 2.75 cubic feet per subwoofer.
سیم کشی
The 512E-D4 features a Dual 4-Ohm voice coil configuration. Proper wiring is essential to match the impedance requirements of your ampبا خود مشورت کنید ampدفترچه راهنمای تقویتکننده برای بارهای امپدانس سازگار.
Common wiring configurations for dual voice coil subwoofers:
- Series Wiring (for a single subwoofer): Connect the positive terminal of one voice coil to the negative terminal of the other voice coil. The remaining positive and negative terminals will present an 8-Ohm load.
- Parallel Wiring (for a single subwoofer): Connect both positive terminals together and both negative terminals together. This will present a 2-Ohm load.
- ساب ووفر چندگانه: When using multiple subwoofers, further series or parallel connections can be made to achieve the desired final impedance. Always ensure the final impedance matches your amplifier's stable operating range.

Image: Two DD Audio 512E-D4 12-inch subwoofers, side-rear view, highlighting the robust magnet structure and the wiring terminals for connection.
دستورالعمل های عملیاتی
Once installed, follow these guidelines for safe and effective operation of your DD Audio subwoofers.
قدرت هندلینگ
The 512E-D4 subwoofers are rated for 700 Watts RMS and 2100 Watts Peak power. It is important to match your amplifier's output to these ratings to prevent damage. Underpowering a subwoofer can be as damaging as overpowering it, as it can lead to clipping and distortion from the ampزنده تر
دوره ورود اولیه
Allow a break-in period of approximately 20-30 hours of normal listening before operating the subwoofers at high volumes. This allows the suspension components (surround and spider) to loosen up and reach their optimal compliance.
کنترل سیستم
خود را تنظیم کنید amplifier's gain, crossover, and bass boost settings carefully. Start with low settings and gradually increase them while listening for any signs of distortion. The goal is clean, powerful bass, not excessive volume that leads to damage.
تعمیر و نگهداری
Regular maintenance will help ensure the longevity and performance of your subwoofers.
تمیز کردن
Use a soft, dry cloth to wipe down the subwoofer cone and frame. Avoid using harsh chemicals or excessive moisture, which can damage the materials. Keep the area around the subwoofer free of dust and debris.
بازرسی
Periodically inspect the subwoofer for any signs of wear or damage, such as tears in the surround, loose connections, or unusual noises. Address any issues promptly to prevent further damage.
ملاحظات زیست محیطی
Avoid exposing the subwoofers to extreme temperatures, direct sunlight for prolonged periods, or excessive moisture. These conditions can degrade the materials and affect performance.
عیب یابی
If you encounter issues with your subwoofers, refer to the following common troubleshooting steps:
- بدون صدا:
- تمام اتصالات سیمکشی را از amplifier to the subwoofer. Ensure they are secure and correctly polarized.
- تایید کنید ampتقویتکننده روشن است و سیگنال دریافت میکند.
- بررسی کنید amplifier fuses and system fuses.
- صدای مخدوش:
- را کاهش دهید amplifier gain or head unit volume. Distortion often indicates the ampبرش دهنده
- Check for proper impedance matching between the subwoofer and ampزنده تر
- Ensure the subwoofer is securely mounted and not vibrating against the enclosure.
- صدای بم ضعیف یا خفه:
- Verify the subwoofer is wired in phase with other speakers in the system.
- Check crossover settings on the amplifier or head unit. Ensure the low-pass filter is set appropriately for a subwoofer.
- Confirm the enclosure volume and tuning are suitable for the subwoofer.
- گرمای بیش از حد:
- از تهویه کافی در اطراف اطمینان حاصل کنید ampزنده تر
- Reduce prolonged high-volume listening.
- Check for proper impedance matching. Incorrect impedance can cause the amplifier to work harder and overheat.
If these steps do not resolve the issue, contact DD Audio customer support or a qualified technician.
مشخصات
Below are the detailed technical specifications for the DD Audio 512E-D4 12-inch Dual 4-Ohm Subwoofers:
| مشخصات | ارزش |
|---|---|
| اندازه بلندگو | 12 اینچ |
| وات RMS | 700 وات |
| واتس پیک | 2100 وات |
| امپدانس | دو اهم (D4) |
| قطر سیمپیچ صوتی (VCD) | 3 اینچ |
| فرکانس تشدید (Fs) | 33 هرتز |
| قمس | 4.88 |
| قس | 0.73 |
| تعداد | 0.64 |
| حجم معادل (Vas) | 30.16 لیتر |
| BL (TM) | 25 |
| Xmech | 30 میلی متر |
| xmax | 18 میلی متر |
| قطر بیرونی قاب (OD) | 12.125 اینچ |
| Frame OD w/Gasket | 12.4 اینچ |
| قطر نصب | 11.02 اینچ |
| عمق نصب | 6.5 اینچ |
| قطر موتور | 7 اینچ |
| عمق موتور | 2.375 اینچ |
| وزن آهنربا | 120 اونس |
| جابجایی ووفر | 0.8 CuFt |
| Ported Enclosure (Recommended) | ۱.۷۵ تا ۲.۷۵ فوت مکعب |
| وزن مورد | 42 پوند |
اطلاعات گارانتی
The DD Audio 512E-D4 subwoofers come with a Limited Warranty. For specific details regarding warranty coverage, duration, and claims process, please refer to the official DD Audio webبه سایت مراجعه کنید یا مستقیماً با خدمات مشتریان آنها تماس بگیرید. رسید خرید خود را برای اعتبارسنجی گارانتی نگه دارید.
پشتیبانی مشتری
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact DD Audio customer support through their official website or the contact information provided with your purchase. Always provide your product model number (512E-D4) and proof of purchase when seeking support.





