Quantum QW1000/10S4
May 2, 2023
Okur OSW10D4
May 4, 2023

Quantum QW1000/12S4


12″ Single 4 Ohm 1000 Watts

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  • 2.0″ / 50.8mm KSV Voice Coil
  • PP Cone W/ Foam Surround
  • Injection Molded PP Dust Cap
  • High Energy Strontium Ferrite Magnet
  • Convection Vented Monolithic Forged Yoke
  • Electro-plated finished Top and Bumped Bottom Plate
  • CAD Optimized Electro Mechanical and Magnetic Design
  • Low Stress Connecting Leads
  • Poly-Cotton Spider
  • Compression Speaker Terminals
Structure 12″ (30.48cm) Woofer
Dynamic Power Handling 1000 Watts
Nominal Power Handling 250 Watts
Impedance Single 4Ω Voice Coil
Resonant Frequency (fs) 24.9Hz
D.C. Voice Coil Resistance (Re) 3.2Ω
Mechanical Quality Factor (Qms) 8.11
Electrical Quality Factor (Qes) 0.94
Total Quality Factor (Qts) 0.84
Mass of Diaphragm/Coil (Mms) 111.3 g
Force Factor (Bl) 7.7
Sound Pressure Level (SPL) 85.6dB


Outside Diameter (A) 12.40″ (315mm)
Cutout Diameter (B) 10.82″ (275mm)
Mounting Depth (C) 5.20″ (132mm)