EW7 12F

EW7 12F




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

    • 3″ 4 Layer Dual 4 Ohm VC w/ Aluminum Former
    • IMPP Cone with Foam Surround
    • 60 oz. Ferrite Magnet
    • Ultra Thin Stamped Steel Frame Design
    • Blue Zinc Finished Top and Bottom Plates
    • Mixed C Fiber Spider
    • Heavy Gauge Spring Terminals
    • Radial VC Venting

Physical Structure

Outside Diameter (A) 12.42″ (315.5mm)
Cutout Diameter (B) 11.18″ (284mm)
Mounting Depth (C) 3.5″ (89mm)
General Specifications
Structure 12″ (30.48cm) Woofer
Dynamic Power Handling 1000 Watts
Nominal Power Handling 300 Watts
Impedance Dual 4Ω Voice Coil
Sensitivity 1W/1m (SPL) 85.8 dB
DC Resistanc (Re) 7.240 Ω
Free Air Resonance (Fo) 23.171 Hz
Equivalent Stiffeness (Vas) 116.847mM
Mechanical Q (Qms) 5.802
Electrical Q (Qes) 0.584
Total Q (Qts) 0.531
Moving Mass (Mms) 174.423 g
Motor Force (BL) 17.739 TM
Cone Surface Area (Sd) 55.155mM

Recommended Enclosures

Woofer Cut-out 11.18? (284mm)
Mounting Depth 3.5″ (89mm)
Sealed Box 0.55 ft3 (15.57L)
Dynamic Power 1000 Watts
Nominal Power 300 Watts