15”4Ω DVC  Competition Subwoofer

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Our engineers at DB Drive have designed this subwoofer from the ground up to shake the ground up. The double stitched 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.

    • 184oz Ceramic Ferrite Magnet
    • Low Carbon Steel and Bottom Plates
    • 1.5” Wide DFM Foam Blend
    • Designed to Optimize SPL Performance
    • High Excursion Spider Design
    • Dual 4Ω Voice Coils

Physical Structure

Outside Diameter (A) 15.62″ (397mm)
Cutout Diameter (B) 13.74″ (349mm)
Mounting Depth (C) 7.81″ (198.5mm)
General Specifications
Structure 15″ (38.1cm) Woofer
Dynamic Power Handling 4000 Watts
Nominal Power Handling 2000 Watts
Impedance Dual 4Ω Voice Coil
Resonant Frequency (fs) 34.762Hz
D.C. Voice Coil Resistance (Re) 3.6Ω + 3.6Ω
Mechanical Quality Factor (Qms) 4.747
Electrical Quality Factor (Qes) 1.007
Total Quality Factor (Qts) 0.830
Equivalent Air Volume to Cms (Vas) 56.059 L
Mass of Diaphragm/Coil (Mms) 361.040 g
Force Factor (Bl) 22.532 N/A
Sound Pressure Level (SPL) 85.6 dB

Recommended Enclosures

Woofer Cut-out 13.74″ (239mm)
Mounting Depth 7.81″ (198.3mm)
Sealed Box 1.9 ft3 (53.80L)
Vented Box 4.08 ft3 (115.53L)
Vent Area 48 in2 (309.67 cm2)
Vent Length 24″ (60.96cm)
Tuning 35Hz
Dynamic Power 4000 Watts
Nominal Power 2000 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).

2 Ohm DVC Configuration