QW1000/12S4

QW1000/12S4

$119.99

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Our engineers 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.

  • 2.0″ / 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

Physical Structure

Outside Diameter (A) 12.40″ (315mm)
Cutout Diameter (B) 10.82″ (275mm)
Mounting Depth (C) 5.20″ (132mm)
General Specifications
Structure 12″ (30.48cm) Woofer
Dynamic Power Handling 1000 Watts
Nominal Power Handling 250 Watts
Impedance Single 4Ω Voice Coil
Parameters
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

Recommended Enclosures

Woofer Cut-out 10.82″ (274.82mm)
Mounting Depth 5.20″ (132mm)
Sealed Box 1.25 ft3 (35.39L)
Vented Box 1.5 ft3 (42.47L)
? Port Diameter 4 in (10.16 cm)
? Port length 12 in (30.48 cm)
? Tuning 39Hz
Dynamic Power 1000 Watts
Nominal Power 250 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).

4 Ohm DVC Configuration

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