1. 서론
Thank you for choosing the DB Drive G7 8.4 8-inch Subwoofer. This manual provides essential information for the proper installation, operation, and maintenance of your new subwoofer. Designed for high performance, the G7 8.4 features robust construction including a double-stitched foam surround, a die-cast aluminum vented basket, and a triple-stacked Y35 ferrite oxide magnet for powerful and precise bass reproduction.
Please read this manual thoroughly before attempting installation or operation to ensure optimal performance and longevity of your product.
2. 패키지 내용
패키지를 열 때 모든 품목이 들어 있고 상태가 양호한지 확인하세요.
- DB Drive G7 8.4 8-inch Subwoofer
3. 주요 특징
The DB Drive G7 8.4 Subwoofer incorporates advanced design and materials for superior audio performance:
- 8인치 서브우퍼: Compact size with powerful output.
- High Excursion Foam Surround: Double-stitched for maximum excursion and durability.
- True Carbon Fiber Dust Cap: Provides rigidity and a distinctive appearance.
- Custom Die-Cast Aluminum Basket: Vented design for improved cooling and structural integrity.
- Triple Layer Progressive Dampeners: Ensures controlled cone movement and reduces distortion.
- Large Gauge Push Speaker Terminals: For secure and reliable wire connections.
- 3-inch High-Temperature 4-Layer Voice Coil: Designed to handle high power levels without overheating.
- Custom Rubber Protective Magnet Band: Offers protection to the magnet structure.
- Triple Stacked Y35 Ferrite Oxide Magnet: Provides strong magnetic force for high efficiency and output.

그림 3.1: 앞면과 측면 view of the DB Drive G7 8.4 Subwoofer, highlighting its robust construction.

Figure 3.2: Detailed diagram illustrating the internal components of the DB Drive G7 8.4 Subwoofer, including the foam surround, carbon fiber cone, tinsel leads, stacked spider, power terminals, and motor structure.
4. 설정 및 설치
서브우퍼의 성능과 수명을 위해서는 올바른 설치가 매우 중요합니다. 자격을 갖춘 전문가에게 설치를 의뢰하는 것을 강력히 권장합니다.
4.1 인클로저 요구 사항
The G7 8.4 is designed for custom box mounting. Ensure the enclosure is properly sealed and braced to prevent air leaks and vibrations. Consult with an audio professional or use a reputable enclosure design software to determine the optimal volume and port tuning (if applicable) for your specific application.
4.2 배선 연결
This subwoofer features a 4 Ω Dual Voice Coil (DVC) design. Proper wiring is essential to match the impedance requirements of your amp증폭기. 귀하의 것을 참조하십시오. amplifier's manual for compatible impedance loads. Common wiring configurations for DVC subwoofers include:
- 시리즈 배선: 한 음성 코일의 양극 단자를 다른 음성 코일의 음극 단자에 연결합니다. 나머지 양극 및 음극 단자는 amplifier. This configuration increases the total impedance (e.g., two 4 Ω coils in series result in 8 Ω).
- 병렬 배선: Connect both positive terminals together and both negative terminals together. These combined terminals then connect to the amplifier. This configuration decreases the total impedance (e.g., two 4 Ω coils in parallel result in 2 Ω).
Always use appropriate gauge speaker wire for your power levels to minimize power loss and ensure safe operation. Secure all connections firmly to prevent shorts or loose contacts.

그림 4.1: 측면 view of the DB Drive G7 8.4 Subwoofer, highlighting the large gauge push speaker terminals for secure wiring.

그림 4.2: 전면 view of the DB Drive G7 8.4 Subwoofer, showcasing the carbon fiber dust cap and foam surround.
5. 사용 설명서
Once installed, proper operation ensures the best sound quality and extends the life of your subwoofer.
5.1 Amplifier 설정
설정하세요 amplifier's gain (level) control correctly. Start with the gain at its minimum setting and slowly increase it until you hear distortion, then back off slightly. Avoid setting the gain too high, as this can lead to clipping and damage to the subwoofer.
5.2 크로스오버 설정
당신의 능력을 활용하세요 amplifier's or head unit's low-pass filter (LPF) to send only low frequencies to the subwoofer. A typical crossover point for an 8-inch subwoofer might be between 80 Hz and 120 Hz, but this can vary based on your vehicle's acoustics and personal preference.
5.3 적응 기간
Allow a break-in period of approximately 20-30 hours of normal listening before pushing the subwoofer to its limits. This allows the suspension components (surround and spider) to loosen up and reach their optimal compliance.
6. 유지관리
The DB Drive G7 8.4 Subwoofer requires minimal maintenance to ensure long-term performance.
- 청소: Periodically wipe the subwoofer cone and surround with a soft, dry cloth to remove dust and debris. Avoid using harsh chemicals or excessive moisture.
- 점검: Regularly check the speaker terminals for secure connections. Inspect the surround and cone for any signs of damage or tears.
- 환경: Ensure the subwoofer is installed in a location protected from extreme temperatures, direct sunlight, and moisture.
7. 문제 해결
If you experience issues with your DB Drive G7 8.4 Subwoofer, refer to the following common problems and solutions:
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 소리가 나지 않습니다 | 배선이 느슨하거나 올바르지 않음 Amplifier not powered on; Amplifier in protect mode; Blown fuse. | Check all wiring connections; Verify amplifier power and fuses; Consult amp보호 모드 해결을 위한 증폭기 설명서. |
| 왜곡된 소리 | Amplifier gain set too high (clipping); Incorrect crossover settings; Damaged voice coil or cone. | 줄이다 amplifier gain; Adjust crossover frequency; Inspect subwoofer for physical damage. |
| 서브우퍼 과열 | Improper impedance match; Amplifier underpowered or overpowered; Prolonged high volume use. | Verify correct impedance wiring; Ensure amplifier power matches subwoofer RMS rating; Reduce listening volume. |
| 약한 저음 출력 | Incorrect phase setting; Subwoofer polarity reversed; Enclosure issues; Amp리파이어 이득이 너무 낮습니다. | 위상 스위치를 확인하십시오 amplifier; Verify correct wiring polarity; Inspect enclosure for leaks; Increase amp리파이어는 점차적으로 이득을 얻습니다. |
If the problem persists after attempting these solutions, please contact DB Drive customer support or a qualified car audio technician.
8. 사양
| 사양 | 세부 사항 |
|---|---|
| 모델명 | DB DRIVE G7 8.4 |
| 스피커 유형 | 서브우퍼 |
| 스피커 크기 | 8인치 |
| 스피커 최대 출력 전력 | 2500 와트 |
| 임피던스 | 4 Ω Dual Voice Coil |
| 주파수 응답 | 50Hz |
| 장착 유형 | CUSTOM BOX MOUNT |
| 재료 | Aluminum (Basket) |
| 제품 크기(D x W x H) | 7.38인치 x 9.17인치 x 7.48인치 |
| 포함된 구성 요소 | SUBWOOFER ONLY |
| 제조업체 | DB 드라이브 |
9. 보증 및 지원
For warranty information and technical support, please refer to the warranty card included with your product or visit the official DB Drive web사이트. 보증 청구를 위해 구매 증빙 자료를 보관하세요.
If you require assistance with installation, troubleshooting, or have questions about your DB Drive G7 8.4 Subwoofer, please contact DB Drive customer service directly.





