This document serves as the user manual for the DB Drive WDX 7K series subwoofers, specifically covering the WDX15 7KD2 and WDX15 7KD4 models. It provides installation instructions, owner's manual information, product specifications, and warranty details.
Function Description
The DB Drive WDX 7K subwoofers are state-of-the-art car audio products designed to enhance musical reproduction in a vehicle's sound system. They are intended to deliver deep, impactful bass, improving the overall audio experience. These subwoofers can be integrated into existing car audio systems or used as part of a new installation. The manual emphasizes that proper installation is crucial for maximizing the system's performance.
Important Technical Specifications
The manual provides detailed technical specifications for both the WDX15 7KD2 and WDX15 7KD4 models under the "TS SPECS" section.
WDX15 7KD2:
- Resonant Frequency (fs): 32.595 Hz
- DC Resistance (Re): 4.000 Ω
- Mechanical Q (Qms): 6.703
- Electromagnetic Q (Qes): 0.417
- Total Q (Qts): 0.393
- Compliance Equivalent Volume (Vas): 41.192
- Mechanical Compliance of Suspension (Cms): 50.921u M/N
- BL Product (Bl): 30.327
- Diaphragm Mass inc. Airload (Mms): 468.210 gr
- Sound Pressure Level (SPL): 87.2 dB
WDX15 7KD4:
- Resonant Frequency (fs): 37.476 Hz
- DC Resistance (Re): 6.800 Ω
- Mechanical Q (Qms): 7.011
- Electromagnetic Q (Qes): 0.553
- Total Q (Qts): 0.513
- Compliance Equivalent Volume (Vas): 42.509
- Mechanical Compliance of Suspension (Cms): 49.904u M/N
- BL Product (Bl): 31.109
- Diaphragm Mass inc. Airload (Mms): 334.435 gr
- Sound Pressure Level (SPL): 87.9 dB
Physical Dimensions (common to both models, based on the provided diagram):
- Overall Diameter: 412 mm (16.22 inches)
- Mounting Diameter: 256 mm (10.08 inches)
- Mounting Depth: 357 mm (14.06 inches)
- Overall Height: 260 mm (10.24 inches)
Usage Features
The manual highlights several key aspects related to the usage and installation of the WDX 7K subwoofers:
- Installation Recommendation: It is strongly recommended that the product be installed by an authorized DB Drive retailer to ensure optimal performance and avoid potential issues. However, for those who choose to install it themselves, the manual advises careful reading and adherence to the instructions.
- Safety Precaution (Installation): Before making any electrical connections, users are instructed to disconnect the car's battery. This is a critical safety measure to prevent damage to the electrical system during installation.
- Sound Level Warning: The manual includes a warning about exposure to high-power sound systems. It states that listening at loud levels can cause hearing loss or damage and can impair the ability to hear traffic sounds and emergency vehicles while driving. Users are advised to use common sense when listening to their system.
- Continuous Improvement: The document notes that due to continuous product improvement, specifications are subject to change without prior notice.
Maintenance Features
The manual primarily focuses on installation and warranty, with limited explicit details on routine maintenance. However, the warranty section implies certain considerations related to product care:
- Warranty Coverage: DB Drive warrants the WDX 7K woofers for 30 days from the original sales invoice date. This warranty applies only to the original purchase and requires the woofer to be purchased directly from an authorized DB Drive dealer.
- Warranty Exclusions: The warranty specifically covers manufacturing defects. It does not extend to units subjected to abuse, neglect, or damage due to installation accidents. Crucially, the limited warranty does not cover open or burnt voice coils resulting from competition, testing, or normal use. This implies that proper usage within specified limits is essential to avoid damage that would void the warranty.
- Warranty Claim Process: To obtain warranty service, the woofer must be sent to the DB Research L.L.P RA department for evaluation. A DB Research-issued RA number is required, and the original sales invoice must be presented. All woofers undergo inspection by DB Research before any warranty agreement is made. If a woofer does not qualify for warranty, the customer will be contacted with repair and cost options.
- Record Keeping: Users are advised to attach their sales receipt to the manual and keep it in a safe place. This receipt is necessary to establish the purchase date for warranty service.
In summary, the DB Drive WDX 7K subwoofers are high-performance car audio components designed for superior bass reproduction. Users are encouraged to prioritize professional installation and adhere to safety guidelines. While specific routine maintenance steps are not detailed, understanding the warranty terms and exclusions provides insight into the expected care and handling of the device to ensure its longevity and eligibility for support.
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