សេចក្តីផ្តើម
The DD Audio SL712-D2 is a 12-inch shallow-mount subwoofer designed for high-fidelity audio reproduction in compact spaces. This subwoofer is engineered to deliver powerful and accurate bass response, making it suitable for various automotive and marine applications where space is limited. This manual provides essential information for the proper installation, operation, and maintenance of your SL712-D2 subwoofer.

រូបភាពទី ៩៖ ពីលើចុះក្រោម view of the DD Audio SL712-D2 subwoofer, showcasing ការរចនាបង្រួម និងសំណង់រឹងមាំ។
លក្ខណៈសំខាន់ៗ
- Compact Cast Aluminum Frame: Provides structural rigidity and allows for shallow mounting applications.
- 3-Inch High-Temperature Copper Voice Coil: Ensures high power handling and thermal stability.
- Dual Layer Spiders with Integrated Tinsel Leads: Offers enhanced excursion control and durability.
- 170mm Double Magnet Motor with Bumped Back Plate: Delivers strong motor force for dynamic bass output.
- Free Flow Cooling Motor Vent System: Dissipates heat efficiently to maintain performance.
- Water-Resistant Treated Non-Pressed Cone: Provides durability and consistent performance in various environments.
- EROM Surround: Contributes to controlled excursion and extended lifespan.
ការដំឡើងនិងការដំឡើង
ការដំឡើងត្រឹមត្រូវគឺមានសារៈសំខាន់ខ្លាំងណាស់សម្រាប់ដំណើរការល្អបំផុត និងអាយុកាលប្រើប្រាស់បានយូររបស់ឧបករណ៍បំពងសំឡេង subwoofer របស់អ្នក។ វាត្រូវបានណែនាំថាការដំឡើងគួរតែត្រូវបានអនុវត្តដោយអ្នកជំនាញដែលមានសមត្ថភាព។
ការណែនាំអំពីឯករភជប់
The SL712-D2 is designed to perform well in both sealed and ported enclosures. Refer to the specifications section for recommended enclosure volumes.
- Sealed Enclosure Volume: 0.7 - 1.5 cubic feet (19.8 - 42.5 Liters)
- Ported Enclosure Volume: 1.0 - 1.75 cubic feet (28.3 - 50 Liters)
ការម៉ោន
Ensure the mounting surface is rigid and free from obstructions. Use appropriate fasteners to secure the subwoofer firmly to the enclosure.
- អង្កត់ផ្ចិតម៉ោន៖ 11.375 អ៊ីញ (289 មម)
- ជម្រៅម៉ោន៖ 5.5 អ៊ីញ (140 មម)

រូបភាពទី 2: ចំហៀង view of the SL712-D2, illustrating its shallow mounting depth for installation in confined spaces.
ខ្សែភ្លើង
The SL712-D2 features a dual 2-ohm voice coil configuration. Proper wiring to your amplifier is critical to ensure stable operation and optimal power delivery. Consult your amplifier's manual for compatible impedance loads and wiring diagrams. Common configurations include:
- ខ្សែប៉ារ៉ាឡែល៖ Connect both 2-ohm voice coils in parallel for a 1-ohm total impedance.
- ខ្សែភ្លើងស៊េរី៖ Connect both 2-ohm voice coils in series for a 4-ohm total impedance.
ធានារបស់អ្នកជានិច្ច ampឧបករណ៍បំពងសម្លេងមានស្ថេរភាពនៅ impedance ដែលបានជ្រើសរើស។ ខ្សែភ្លើងមិនត្រឹមត្រូវអាចធ្វើឱ្យខូចទាំង subwoofer និង ampកាន់តែចាស់។

រូបភាពទី 3: ខាងក្រោយ view of the SL712-D2, highlighting the dual voice coil terminals for wiring connections.
សេចក្តីណែនាំប្រតិបត្តិការ
រយៈពេលបំបែក
Allow a break-in period of approximately 20-30 hours of normal listening before operating the subwoofer at its maximum potential. This allows the suspension components to loosen and reach their optimal compliance.
Amplifier Gain and Crossover Settings
- ការកំណត់ទទួលបាន៖ កំណត់ ampការឡើងថ្លៃរបស់ឧបករណ៍បង្កើនសំឡេងដើម្បីផ្គូផ្គងវ៉ុលទិន្នផលtage of your head unit. Avoid setting the gain too high, as this can introduce distortion and potentially damage the subwoofer.
- តម្រងឆ្លងកាត់ទាប (LPF)៖ ប្រើ amplifier's low-pass filter to send only low frequencies to the subwoofer. A common starting point is 80-100 Hz, but this may vary based on your system and personal preference.
- តម្រងអនុសំឡេង (HPF): ប្រសិនបើរបស់អ្នក។ amplifier has a subsonic filter, set it slightly below your enclosure's tuning frequency (for ported enclosures) or around 25-30 Hz (for sealed enclosures) to protect the subwoofer from over-excursion at very low frequencies.
ការគ្រប់គ្រងថាមពល
The SL712-D2 has a continuous RMS power rating of 1000 Watts. Ensure your amplifier provides clean power within this range. Underpowering or overpowering with a clipped signal can cause damage.
ថែទាំ
The DD Audio SL712-D2 is designed for durability, but proper care will ensure its long-term performance.
- ការសម្អាត៖ ប្រើក្រណាត់ទន់ស្ងួតដើម្បីជូតថ្នមៗលើកោណ និងជុំវិញ។ ជៀសវាងការប្រើសារធាតុគីមីដ៏គ្រោះថ្នាក់ ឬសំណើមលើស។
- អធិការកិច្ច៖ ពិនិត្យឧបករណ៍បំពងសំឡេងជាប្រចាំសម្រាប់សញ្ញានៃការខូចខាតណាមួយ ដូចជាការរហែកនៅក្នុងឧបករណ៍បំពងសំឡេងជុំវិញ ឬកោណ ឬការតភ្ជាប់រលុង។
- កត្តាបរិស្ថាន៖ Protect the subwoofer from extreme temperatures, direct sunlight, and excessive moisture. While the cone is water-resistant, prolonged exposure to water should be avoided.
ការដោះស្រាយបញ្ហា
If you experience issues with your SL712-D2 subwoofer, consult the following common troubleshooting steps:
- គ្មានសំឡេង៖
- ពិនិត្យមើលការតភ្ជាប់ខ្សែភ្លើងទាំងអស់ពី ampឧបករណ៍ភ្ជាប់ទៅឧបករណ៍បំពងសំឡេង subwoofer និងពីក្បាលម៉ាស៊ីនទៅ ampកាន់តែចាស់។
- ផ្ទៀងផ្ទាត់ ampឧបករណ៍បញ្ចូលថាមពលត្រូវបានបើក និងទទួលសញ្ញា។
- ត្រូវប្រាកដថាកម្រិតសំឡេងរបស់ឯកតាក្បាលត្រូវបានបង្កើន ហើយមិនត្រូវបានបិទសំឡេង។
- ពិនិត្យ ampហ្វុយស៊ីបអគ្គិសនី និងហ្វុយស៊ីបយានយន្ត។
- សំឡេងខូច៖
- កាត់បន្ថយ amplifier ចំណេញ។
- Check for proper crossover settings; ensure the subwoofer is not playing frequencies too high for its design.
- Verify the enclosure is sealed properly (if applicable) and free from air leaks.
- Ensure the subwoofer is not over-excursing.
- បាសខ្សោយ៖
- Check wiring for correct polarity.
- ផ្ទៀងផ្ទាត់ amplifier gain and output levels.
- Ensure the enclosure volume matches recommendations.
- Adjust low-pass filter settings.
If problems persist after following these steps, contact DD Audio customer support or a qualified car audio technician.
លក្ខណៈបច្ចេកទេស
| ប៉ារ៉ាម៉ែត្រ | តម្លៃ |
|---|---|
| ទំហំធុងបាស | ៤.៧៥ អ៊ីញ |
| វ៉ាត់ RMS | 1000 |
| ឧបសគ្គ | D2 (Dual 2-Ohm) |
| Voice Coil Diameter (VCD) | ៤.៧៥ អ៊ីញ |
| អង្កត់ផ្ចិត Piston | ៤.៧៥ អ៊ីញ |
| Fs (ប្រេកង់រំញ័រ) | 29 ហឺត |
| Qms (Mechanical Q) | 5.4 |
| Qes (Electrical Q) | 0.62 |
| Qts (Total Q) | 0.54 |
| វ៉ាស (បរិមាណសមមូល) | 39.2 លីត្រ |
| Xmech (Mechanical Excursion) | 40 ម។ |
| Xmax (ដំណើរកំសាន្តលីនេអ៊ែរ) | 19 ម។ |
| Frame OD (Outer Diameter) | 12.375 អ៊ីញ (314 មម) |
| Frame OD w/ Gasket | 12.5 អ៊ីញ (318 មម) |
| ម៉ោនអង្កត់ផ្ចិត | 11.375 អ៊ីញ (289 មម) |
| ជម្រៅនៃការម៉ោន | 5.5 អ៊ីញ (140 មម) |
| អង្កត់ផ្ចិតម៉ូទ័រ | 6.7 អ៊ីញ (170 មម) |
| Motor Depth | 2.5 អ៊ីញ (63.5 មម) |
| ការផ្លាស់ទីលំនៅរបស់ Woofer | 0.07 CuFt (2 Liters) |
| Sealed Enclosure (Recommended) | 0.7 - 1.5 CuFt (19.8 - 42.5 Liters) |
| Ported Enclosure (Recommended) | 1.0 - 1.75 CuFt (28.3 - 50 Liters) |
| សម្ភារៈ | Aluminum, Paper |
| ទំងន់ធាតុ | 24 ផោន |
ព័ត៌មានធានា
The DD Audio SL712-D2 subwoofer comes with a ការធានា 1 ឆ្នាំ។ from the date of purchase. This warranty covers manufacturing defects under normal use. It does not cover damage caused by improper installation, abuse, accidental damage, water damage, or unauthorized modifications.
For warranty claims, please retain your proof of purchase and contact DD Audio customer support or your authorized dealer.
គាំទ្រ
For additional support, technical assistance, or to view more products, please visit the official DD Audio webគេហទំព័រ៖
You may also contact your authorized DD Audio dealer for local support.