DB Drive Speed Series, Speed SPF12D4, Speed SPF10D4 User Manual

SUBWOOFER MODELS:

SPF10D4 / SPF12D4

USER MANUAL

Installation Instructions | Owners Manual

Due to continuous improvement of the product, specifications are subject to change without notice.

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!

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. Listenin
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 FEATURES

• 2.5” (63mm) 4 Layer Dual 4 Ohm VC w/
Aluminum Former

• IMPP Cone with Foam Surround

• 40 oz. Ferrite Magnet

SPF10D4 SPF12D4

Structure 10” (25.4cm) Woofer 12” (30.4cm) Woofer

Max Power 1000 Watts 1000 Watts

Nominal Power 300 Watts 300 Watts

Impedance 2.5” (63mm) 4Ω Dual Voice Coil 2.5” (63mm) 4Ω Dual Voice Coil

• Ultra Thin Stamped Steel Frame Design

• Blue Zinc Finished Top and Bottom Plates

• Mixed C Fiber Spider

• Heavy Gauge Spring Terminals

PRODUCT SPECIFICATIONS

T/S SPECS SPF10D4 SPF12D4

Sensitivity (1W/1m) SPL 82.9 dB 85.8 dB

DC Resistance Re 6.410 Ω 7.240 Ω

Free Air Resonance Fo 27.409 Hz 23.171 Hz

Equivalent Stiffness Vas 46.185mM 116.847mM

Mechanical Q Qms 7.757 5.802

Electrical Q Qes 0.857 0.584

Total Q Qts 0.739 0.531

Moving Mass Mms 124.362 g 174.423 g

Motor Force BL 13.464 TM 17.739 TM

Cone Surface Area Sd 34.636 mM 55.155mM

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