DB Drive WDX G2 Series Subwoofers

Introduction

Congratulations on your purchase of a DB Drive state-of-the-art subwoofer. Your selection of a DB Drive car audio product indicates a true appreciation of fine musical reproduction. Whether adding to an existing system or including your DB Drive subwoofer in a new system, you are certain to notice immediate performance benefits.

Product Commitment

DB's engineering professionals harnessed years of expertise, experience and passion, coupled with exhaustive testing and creative design to develop the optimal product and performance for your musical enjoyment. This is our commitment to you. It's what you deserve and have come to expect from DB DRIVE. We appreciate the confidence and look forward to your positive experience.

Keep Your Sales Receipt

Take this time to attach your sales receipt to the manual and put in a safe place. In case of any unforeseen reason this product may need warranty service, your receipt will be necessary to establish purchase date.

Recommendation

A power subwoofer's performance is only as good as its installation. Proper installation will maximize the system's overall performance. It is recommended that you have our product installed by an authorized DB Drive retailer. However, if you decide to install it yourself, please carefully read through this manual and take your time to do a quality installation.

Optimal Product Choice

To get the Maximum performance out of your stereo system, we recommend using 100% authentic DB Drive electronics and DB LINK wiring and accessories. Matching DB Drive amplifiers and Speakers with your state-of the art electronics purchase is critical to optimize your system's performance. Wiring is the lifeblood of a system, make sure your audio system has the adequate current and signal transfer it deserves and needs. DB Link has it all, from wiring rolls; Speaker, power, ground and remote to amplifier kits, RCAs, and Fuse holders, distribution blocks and battery connectors. Insist on getting the best, DB LINK. It's what you deserve to get the optimum performance from your audio System.

Important Safety Information

IMPORTANT!

Before making any connections, disconnect the car's battery until the installation is completed to avoid possible damage to the electrical system.

WARNING!

Exposure to high power sound system can cause hearing loss or damage. Listening to your system at loud levels while driving will impair your ability to hear traffic sounds and emergency vehicles. Use common sense when listening to your system.

Serial #: _________________________ Model #: _________________________

Product Features

• Protective magnet cover
• Large gauge compression terminals
• Rubber gasket trim ring
• Die-cast aluminum vented basket
• Dual poly-cotton dampeners
• Double stitched foam surround
• Non-Pressed paper cone
• High temperature voice coil

Visual representation of the DB Drive WDX G2 subwoofer models: Five distinct subwoofer designs are shown, each corresponding to a different size: 6.5-inch, 8-inch, 10-inch, 12-inch, and 15-inch. Each model features the DB DRIVE logo and the WDX G2 branding.

Product Specifications

Product Dimensions

Diagram illustrating subwoofer dimensions: A circular subwoofer cone is shown with labels pointing to its key measurements. Label A indicates the Frame Diameter, Label B indicates the Mounting Depth (from the front of the frame to the rear of the magnet), and Label C indicates the Cutout Diameter (the hole size needed for mounting).

Recommended Enclosure

The purpose of the information below is to help you select the most appropriate type of enclosure for your application. We have selected the two most popular enclosure types and their performance benefits.

Sealed Enclosure (Air-Suspension Design)

Characteristically simpler to make, sealed enclosures usually are better at controlling the woofer's excursion and performance at lower frequencies. The added control allows for higher power handling or use of a bigger amplifier. The secret is to maintain a perfect seal. Using glues and sealants at all seams is recommended to prevent leaks and maintain the integrity of the enclosure. The size or volume of the enclosure will directly affect the performance of the woofer. Smaller enclosures generally provide a desired bump to the frequency response curve and greater SPL. Larger enclosures will provide a lower but flatter response for deeper bass. In general, the benefit to the sealed enclosure versus a ported enclosure is a smaller footprint, simpler build with higher power handling, a more linear flat response, superior sound quality, and extended low-frequency output.

Ported Enclosure (Bass-Reflex or Vented)

A ported enclosure is simply a sealed enclosure with a port or vent added to the sealed design for the purpose of tuning the enclosure to higher output at the desired tuned frequency, typically 3dB or higher. Another advantage of a ported enclosure is the reduction of cone motion for the speaker, thus distortion at higher power levels within the tuned frequency response of the port. A drawback is that building a ported enclosure is more complex than sealed. Having the wrong port or vent could result in poor sound, and the potential of damaging a woofer when played too loud or out of the tuning frequency. Thus, we recommend not guessing; please follow the guidelines listed in this manual or consult a professional. In general, the benefit of a ported enclosure versus a sealed is higher volume output at the tuned frequency, stronger bass output with lower power input.

Construction Recommendations

It is recommended to use 3/4” MDF (Medium Density Fiberboard) for the construction of an enclosure. It is critical for the side walls of the enclosure not to flex due to the pressure generated by the woofer; bracing might be required. The enclosure sides should be secured together with nails/screwed. We also recommend the use of glues and sealants to maintain the integrity of the enclosure and eliminate leaks.

Enclosure Specifications

Diagrams illustrating sealed and vented enclosure types are provided, showing the basic shapes and internal volumes.

Calculating Enclosures

It is recommended to build your enclosure from 3/4” thick MDF (medium density fiberboard). Make sure the enclosure is sealed airtight.

Calculating External Volume

To calculate box volume, measure the outside Width x Height x Depth of the enclosure. Example: 12" x 14" x 9" = 1512 cubic inches. Next, you must convert cubic inches into cubic feet. To do this, you must divide the cubic inches total by 1728". Example: 1512 / 1728 = 0.875 cubic feet.

Calculating Internal Volume

To calculate the internal (net) volume of the box, you must first multiply the thickness of the wood you are using by Two (2). Example: 3/4" x 2 = 1.5 inches. Next, subtract 1.5 inches from each of the outside measurements of the box.

Example:

• Width: 12" - 1.5" = 10.5"
• Height: 14" - 1.5" = 12.5"
• Depth: 9" - 1.5" = 7.5"

Multiply the new totals (Height x Width x Depth). Example: 10.5" x 12.5" x 7.5" = 984.375 cubic inches. Next, you must convert cubic inches into cubic feet. To do this, you must divide the cubic inch total by 1728". Example: 984.375 / 1728 = 0.5696 cubic feet.

DVC Wiring Configurations

You can change the wiring configuration of your speakers (Series, Parallel, and Series/Parallel) to match the impedance loads that maximize the power output of your amplifier. Wiring the same woofer or multiple woofers in these three different wiring configurations will result in different impedance loads.

• Series: The method of wiring alternate positive with negative terminals.
• Parallel: The method of wiring where you match 2 speaker terminals with positive to positive terminal and negative to negative.
• Series/Parallel: This configuration is a combination of both series and parallel.

2Ω DVC Wiring Configurations

Diagrams illustrate wiring for 1x and 2x 2Ω DVC subwoofers, showing connections to an amplifier and resulting impedance loads.

• 1 x 2Ω DVC Subwoofer: Series: 2Ω, Parallel: 1Ω
• 2 x 2Ω DVC Subwoofers: Series: 4Ω, Parallel: 1Ω, Series/Parallel: 1.33Ω

4Ω DVC Wiring Configurations

Diagrams illustrate wiring for 1x, 2x, 3x, and 4x 4Ω DVC subwoofers, showing connections to an amplifier and resulting impedance loads.

• 1 x 4Ω DVC Subwoofer: Series: 4Ω, Parallel: 2Ω
• 2 x 4Ω DVC Subwoofers: Series: 8Ω, Parallel: 2Ω, Series/Parallel: 2.67Ω
• 3 x 4Ω DVC Subwoofers: Series: 12Ω, Parallel: 1.33Ω, Series/Parallel: 2.67Ω
• 4 x 4Ω DVC Subwoofers: Series: 16Ω, Parallel: 1Ω, Series/Parallel: 4Ω (common configuration)

The diagrams visually represent how to connect the positive (+) and negative (-) terminals of the subwoofers to the amplifier, indicating the final impedance for each configuration.

Limited Warranty

DB Drive™ warrants any products purchased in the U.S.A. from an authorized DB Drive™ dealer.

All products are warranted to be free from defects in material and workmanship under normal use and service for a period of one (1) year.

This warranty applies to the original purchase only.

DB Drive™ will either repair or replace (at its option) any unit that has been found to be defective and under warranty, provided the defect occurs within the one (1) year warranty period.

This limited warranty does not extend to units that have been subjected to misuse, abuse, neglect, or accident. In DB Drive™'s judgment, products that show evidence of having been altered, modified, or serviced without DB Drive™'s authorization, will be ineligible under this warranty.

To obtain warranty service, please contact your retailer or visit our website at www.dbdrive.net for more details.

DB Research L.L.P. ▪ 302 Hanmore Industrial Parkway - Harlingen, TX 78550

Ph: (877) 787-0101 ▪ Fax: (956) 421-4513 ▪ tech support: support@dbdrive.net

Designed and Engineered in the U.S.A.