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2
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.
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 max-
imize 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.
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 hearling loss or damange. 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 #___ ___ ___ ___ ___ ___ ___ ___ ___ _ _ ___ ___
256/10.08”
228/8.98”
280/11.02
317/12.48”
PRODUCT SPECIFICATIONS
TS SPECS
WDX12 7KD2
Resonant Frequency
(fs)
......................................................................... 37.476Hz
DC Resistance
(Re)
........................................................................................
4.000 Ω
Mechanical
(Qms)
...............................................................................................7.612
Electromagnetic
(Qes)
......................................................................................0.419
Total Q
(Qts)
..........................................................................................................0.397
Compliance Equivalent Volume
(Vas)
.....................................................15.672
Mechanical Compliance of Suspension
(Cms)
.......................53.928u M/N
BL Product
(Bl)
.................................................................................................. 27.408
Diaphragm Mass inc. Airload
(Mms)
..............................................334.438 gr
Sound Pressure Level
(SPL)
.......................................................................84.8 dB
WDX12 7KD4
............................40.185Hz
................................
6.800 Ω
.....................................6.161
....................................0.459
....................................0.427
..................................13.182
....................49.904u M/N
................................. 35.372
.........................334.435 gr
...............................84.6 dB
