DB Drive K9 12D4
August 30, 2021
DB Drive S357V2
August 30, 2021

DB Drive SPX12S4 Out of Stock

Speed Series Subwoofer (12″ – 200W RMS – Single 4 Ohm)


  • 2″ (50mm) Voice Coil w/ KSV Former
  • PP Cone Structure with Foam Surround
  • Vac PP Dome
  • Ferrite Oxide Magnet
  • Anti-resonant Stamped Steel frame
  • High Carbon Steel top and bottom plates
  • Poly-Cotton Dampeners
  • Compression Speaker Terminals
Outside Diameter (A) 12.50″ (317mm)
Cutout Diameter (B) 10.89″ (276.5mm)
Mounting Depth (C) 5.43″ (138mm)
Structure 12″ (3.48cm) Woofer
Dynamic Power Handling 900 Watts
Nominal Power Handling 300 Watts
Impedance Single 4Ω Voice Coil
Resonant Frequency (fs) 25.5Hz
D.C. Voice Coil Resistance (Re) 3.2Ω
Mechanical Quality Factor (Qms) 8.45
Electrical Quality Factor (Qes) 0.95
Total Quality Factor (Qts) 0.85
Mass of Diaphragm/Coil (Mms) 111.8 g
Force Factor (Bl) 7.8
Sound Pressure Level (SPL) 85.7dB