DB Drive Speed SPX12S4 User manual

SPX10S4 • SPX10D4 • SPX12S4 • SPX12D4
USER MANUAL
Installation Instructions | Owners Manual
Due to continuous improvement of the product, specifications are subject to change without notice.
DB Research L.L.P.
302 Hanmore Industrial Parkway Harlingen, TX 78550
Phone [phone] : Fax [phone] : [e-mail] : www.DBDrive.net
TM

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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 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.
S e r i a l # ____________________________________ _M o d e l # ___________________________________

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PRODUCT SPECIFICATIONS
CALCULATING ENCLOSURES
It is recommended to build your enclosure from at least 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 ÷ 1728” Cubic feet
Next you must convert cubic inches into cubic feet. To do this, you must
divide the cubic inches total by 1728”. Example 1512 ÷ 1728=.875 Cubic feet
Calculating Internal Volume
To calculate the internal (net) volume of the above box you must first multiply
the thickness of the wood you are using by Two(2). Example 3/4” x 2= 1.5“
Next subtract 1.5 from each of the outside measurements of the box.
Width Height Depth
12 - 1.5 = 10.5 14 - 1.5 = 12.5 9 - 1.5 = 7.5
Multiple the new totals (H x W x D) Example: 10.5 x 12.5 x 7.5 = .5696
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=.5696 cubic feet.
TS SPECS SPX10S4 SPX10D4 SPX12S4 SPX12D4
FS..............................40.8 Hz.................41.5 Hz..................25.5 Hz................28.7 Hz
Re...................................3.2Ω.........................6.4Ω........................3.2Ω......................6.4Ω
Qms.............................. 8.66........................9.80.........................8.45.......................8.16
Qes............................... 1.00........................1.13.........................0.95.......................1.09
Qts................................ 0.90........................1.01.........................0.85.......................0.96
Rms....................... 2.6 kg/s.................2.4 kg/s..................2.1 kg/s................2.5 kg/s
Cms............... 0.18 mm/N............0.16 mm/N...........0.35 mm/N...........0.28mm/N
Mms........................86.5 gr.....................91.8 gr.................111.8 gr................111.1 gr
BL...........................8.4 N/A .................11.6 N/A..................7.8 N/A..............10.9 N/A
SPL........................ 84.9 dB .................. 84.2 dB..................85.7 dB............. 85.65 dB

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SPX12S4
Woofer Cut-out: 10.89 in. (276 mm.)
Mounting Depth: 5.43 in. (138 mm.)
Recommended Sealed Box: 1.4 cu ft.
Recommended Vented Box: 1.7 cu ft.
• Vent Area: 4” round vent or 12.57 square inches
• Vent Length: 12” long
• Tuning: 37Hz
Dynamic Power Handling : 900 Watts
Nominal Power Handling : 300 Watts
SPX12D4
Woofer Cut-out: 10.89 in. (276 mm.)
Mounting Depth: 5.43 in. (138 mm.)
Recommended Sealed Box: 1.4 cu ft.
Recommended Vented Box: 1.7 cu ft.
• Vent Area: 4” round vent or 12.57 square inches
• Vent Length: 12” long
• Tuning: 37Hz
Dynamic Power Handling : 900 Watts
Nominal Power Handling : 300 Watts
SPX10S4
Woofer Cut-out: 9.06 in. (230 mm.)
Mounting Depth: 4.76 in. (121 mm.)
Recommended Sealed Box: 1.2 cu ft.
Recommended Vented Box: 1.4 cu ft.
• Vent Area: 3” round vent or 7.06 square inches
• Vent Length: 8” long
• Tuning: 37Hz
Dynamic Power Handling : 900 Watts
Nominal Power Handling : 300 Watts
SPX10D4
Woofer Cut-out: 9.06 in. (230 mm.)
Mounting Depth: 4.76 in. (121 mm.)
Recommended Sealed Box: 1.2 cu ft.
Recommended Vented Box: 1.4 cu ft.
• Vent Area: 3” round vent or 7.06 square inches
• Vent Length: 8” long
• Tuning: 37Hz
Dynamic Power Handling : 900 Watts
Nominal Power Handling : 300 Watts
RECOMMENDED ENCLOSURES
PortedSealed
10.43in / 265mm
9.06in / 230mm
4.76in / 121mm
10.43in / 265mm
9.06in / 230mm
4.76in / 121mm
12.50in / 317mm
10.89in / 276.5mm
5.43in / 138mm
12.50in / 317mm
10.89in / 276.5mm
5.43in / 138mm