SPW12D4

$249.95

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Categories: Speed Series, Subwoofers

Description
Additional information

Download Manual

California Prop 65 WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov

Additional information

Weight	16 lbs
Dimensions	13.97 × 13.97 × 7.48 in

Our engineers at DB Drive have designed this subwoofer from the ground up to shake the ground up. The foam surround along with the die-cast aluminum vented basket allow for maximum excursion while the protective magnet cover gives the woofer a rugged yet stylish appearance.

2″ (101.6mm) 4 Layer Voice Coil w/ KSV Former
Vac PP Sub Cone Structure with Butyl rubber Surround
Inverted Vac PP Dome
Ferrite Oxide magnet
Anti-resonant Stamped Steel frame
High Carbon Steel top and bottom plates
Poly-Cotton Dampeners
Compression Speaker Terminal

Recommended Amplifier – 2 Subs @ 1Ohm SPA12.1D

Recommended Amplifier – 1 Sub @ 2Ohms SPA6.1M

Physical Structure

Outside Diameter (A)	12.50″ (317mm)
Cutout Diameter (B)	10.89″ (276.5mm)
Mounting Depth (C)	5.913″ (150mm)

General Specifications
Structure	12″ (3.48cm) Woofer
Dynamic Power Handling	1250 Watts
Nominal Power Handling	600 Watts
Impedance	Dual 4Ω Voice Coil

Parameters
Resonant Frequency (fs)	23Hz
D.C. Voice Coil Resistance (Re)	6.4Ω
Mechanical Quality Factor (Qms)	5.79
Electrical Quality Factor (Qes)	0.46
Total Quality Factor (Qts)	0.43

Mass of Diaphragm/Coil (Mms)	168.2 g
Force Factor (Bl)	18.4
Sound Pressure Level (SPL)	86.2dB

Recommended Enclosures

Woofer Cut-out	10.89″ (276mm)
Mounting Depth	5.9″ (150mm)
Sealed Box	1.2 ft³ (33.98L)
Vented Box	1.6 ft³ (45.30L)
? Vent Area	7.4 in² (121.264 cm²)
? Vent Length	18″ (45.72 cm)
? Tuning	26Hz
Dynamic Power	1250 Watts
Nominal Power	600 Watts

Wiring Configuration

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

Series: Is the method of wiring of alternate positive with negative terminals (string method) (Illustration below)

Parallel:Is the method of wiring where you wire match 2 speaker terminals with positive to positive terminal and negative to negative. (Illustration below)

Series/Parallel: This configuration is a combination of both series and parallel. We recommend series for the terminal and parallel for the leads to amp. (Illustration below).