This document is a user manual for the DB Drive WDX G2 series subwoofers, providing installation instructions and owner's manual information. The manual covers four specific models: WDX12G2-4, WDX12G2-2, WDX15G2-4, and WDX15G2-2.
Function Description
The DB Drive WDX G2 series subwoofers are designed to provide state-of-the-art subwoofer performance, offering a true appreciation of fine musical reproduction in car audio systems. These subwoofers are intended to enhance the low-frequency sound output, delivering deep and powerful bass. The manual emphasizes that proper installation is crucial for optimal performance and longevity of the product.
Important Technical Specifications
The manual provides detailed product specifications for each of the four models. Here's a breakdown of key specifications:
WDX12G2-4 and WDX12G2-2 (12-inch models):
- FS (Resonant Frequency): 43.6 Hz (WDX12G2-4) / 41.5 Hz (WDX12G2-2)
- Re (DC Resistance): 124.8 Ω (WDX12G2-4) / 119.5 Ω (WDX12G2-2)
- Qms (Mechanical Q): 4.71 (WDX12G2-4) / 3.96 (WDX12G2-2)
- Qes (Electrical Q): 0.55 (WDX12G2-4) / 0.55 (WDX12G2-2)
- Qts (Total Q): 0.49 (WDX12G2-4) / 0.48 (WDX12G2-2)
- Mms (Moving Mass): 14.7 kg/s (WDX12G2-4) / 16.6 kg/s (WDX12G2-2)
- Cms (Compliance): 0.05 mm/N (WDX12G2-4) / 0.06 mm/N (WDX12G2-2)
- Mms (Mechanical Mass): 252.4 gr (WDX12G2-4) / 252.3 gr (WDX12G2-2)
- BL (Motor Strength): 22.3 N/A (WDX12G2-4) / 27.7 N/A (WDX12G2-2)
- SPL (Sensitivity): 86.64dB (WDX12G2-4) / 86.6 dB (WDX12G2-2)
- VAS (Equivalent Volume): 19.3 L (WDX12G2-4) / 23 L (WDX12G2-2)
- Rp (Resistance Parallel): 33.8 Ω (WDX12G2-4) / 52.6 Ω (WDX12G2-2)
- Lp (Inductance Parallel): 20.8 mH (WDX12G2-4) / 49.2 mH (WDX12G2-2)
- Cp (Capacitance Parallel): 790.8 uF (WDX12G2-4) / 368.8 uF (WDX12G2-2)
- Le (Inductance): 3.10 mH (WDX12G2-4) / 3.89 mH (WDX12G2-2)
- Xmax (Linear Excursion): 20mm for both models.
- SD (Surface Area): 82.35 sq.in. for both models.
- Driver Displacement: 0.19 cuft for both models.
- Dynamic Power Handling: 2500 Watts
- Nominal Power Handling: 1250 Watts
WDX15G2-4 and WDX15G2-2 (15-inch models):
- FS (Resonant Frequency): 37.42 Hz (WDX15G2-4) / 36.1 Ω (WDX15G2-2)
- Re (DC Resistance): 120.5 Ω (WDX15G2-4) / 36.1 Ω (WDX15G2-2)
- Qms (Mechanical Q): 7.50 (WDX15G2-4) / 4.1 (WDX15G2-2)
- Qes (Electrical Q): 0.65 (WDX15G2-4) / 0.55 (WDX15G2-2)
- Qts (Total Q): 0.60 (WDX15G2-4) / 0.52 (WDX15G2-2)
- Mms (Moving Mass): 10.5 kg/s (WDX15G2-4) / 19.99 kg/s (WDX15G2-2)
- Cms (Compliance): 0.05 mm/N (WDX15G2-4) / 0.05 mm/N (WDX15G2-2)
- Mms (Mechanical Mass): 336 gr (WDX15G2-4) / 351.4 gr (WDX15G2-2)
- BL (Motor Strength): 22 TM (WDX15G2-4) / 26.89 TM (WDX15G2-2)
- SPL (Sensitivity): 88 dB (WDX15G2-4) / 87.52 dB (WDX15G2-2)
- VAS (Equivalent Volume): 52 L (WDX15G2-4) / 49.44 L (WDX15G2-2)
- Rp (Resistance Parallel): 45.1 Ω (WDX15G2-4) / 50.8 Ω (WDX15G2-2)
- Lp (Inductance Parallel): 27.9 mH (WDX15G2-4) / 31.0 mH (WDX15G2-2)
- Cp (Capacitance Parallel): 804 uF (WDX15G2-4) / 532.8 uF (WDX15G2-2)
- Le (Inductance): 4.76 mH (WDX15G2-4) / 3.65 mH (WDX15G2-2)
- Xmax (Linear Excursion): 20mm for both models.
- SD (Surface Area): 108.4 sq.in. for both models.
- Driver Displacement: 0.27 cuft for both models.
- Dynamic Power Handling: 2500 Watts
- Nominal Power Handling: 1250 Watts
Recommended Enclosures:
The manual provides detailed enclosure specifications for both sealed and ported configurations, built from 3/4" thick MDF.
WDX12G2-2 & WDX12G2-4 (12-inch models):
- Woofer Cut-out: 11.34 in. (288 mm.)
- Mounting Depth: 6.83 in. (173.5 mm.)
- Recommended Sealed Box: 1.88 cuft.
- Recommended Vented Box: 2.6 cuft.
- Vent Area: 5" round vent or 20 square inches
- Vent Length: 17" long
- Tuning: 33Hz
WDX15G2-2 & WDX15G2-4 (15-inch models):
- Woofer Cut-out: 13.98 in. (355 mm.)
- Mounting Depth: 7.74 in. (196.5 mm.)
- Recommended Sealed Box: 2.18 cuft.
- Recommended Vented Box: 3.17 cuft.
- Vent Area: 6" round vent or 28 square inches
- Vent Length: 23" long
- Tuning: 33Hz
Usage Features
The manual emphasizes several key aspects for optimal usage:
- Proper Installation: The performance of the subwoofer is highly dependent on correct installation. It is recommended to have the product installed by an authorized DB Drive retailer. If self-installing, users should carefully read the manual to ensure proper installation and achieve quality sound.
- Enclosure Design: The manual provides detailed instructions and calculations for building custom enclosures. It recommends using 3/4" thick MDF (medium density fiberboard) and provides formulas for calculating external and internal volume, as well as port dimensions for vented enclosures.
- Safety Precautions: A warning section highlights the importance of proper wiring and connections. Users are advised to make sure all connections are secure and to disconnect the car's battery until installation is complete to avoid potential damage to the electrical system.
- Hearing Safety: Exposure to high power sound systems can cause hearing loss or damage. Users are warned to listen to their system at loud levels while driving, as this can impair their ability to hear traffic sounds and emergency vehicles. Users should use common sense when listening to their system.
- Warranty Service: In case of any unforeseen reason, if the product requires warranty service, users should retain their sales receipt as proof of purchase date.
Maintenance Features
The manual does not explicitly detail specific maintenance features for the subwoofer itself, but it does provide general recommendations that contribute to the longevity and performance of the device:
- Professional Installation: Having the subwoofer installed by an authorized DB Drive retailer can help ensure that the product is set up correctly, reducing the likelihood of issues that might require maintenance or repair.
- Proper Wiring and Connections: The "IMPORTANT!" section stresses the need to make sure all connections are secure and to disconnect the car's battery during installation. This prevents electrical shorts or damage that could lead to component failure.
- Adherence to Specifications: Building enclosures according to the recommended specifications (material, dimensions, vent area, and length) ensures the subwoofer operates within its intended parameters, preventing undue stress on the driver and prolonging its lifespan.
- Safe Listening Practices: The warning about hearing loss also implies that operating the subwoofer within reasonable volume levels, without excessive clipping or distortion, contributes to its long-term reliability. Overdriving the subwoofer can lead to voice coil damage or other mechanical failures.
- Proof of Purchase: Keeping the sales receipt is crucial for any warranty claims, which serves as a form of "maintenance" in case of product defects or failures within the warranty period.
In summary, the DB Drive WDX G2 series subwoofers are high-performance car audio components designed for robust bass reproduction. Their optimal function relies heavily on correct installation, adherence to enclosure design specifications, and safe operating practices. The manual serves as a comprehensive guide for users to achieve the best possible sound quality and ensure the longevity of their investment.
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