QUANTUM AUDIO QWX4000/8D4 (pair)
QUANTUM AUDIO QWX4000/8D4 (pair) - Image 2
QUANTUM AUDIO QWX4000/8D4 (pair) - Image 3

QUANTUM AUDIO QWX4000/8D4 (pair)

Winning Bid: $75.00

Up for auction is a pair of Quantum Audio 8″ Subwoofers. Want a lot of bass without taking up a bunch of trunk space? This is the auction for you!! Good Luck and Happy Bidding!!

Item condition: New

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Description

The engineers at Quantum Audio 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″ High Temperature Voice Coil
  • Compressed Paper Cone
  • Double Stitched Foam Surround
  • Heavy Gauge Stamped Steel Basket
  • Proprietary Full Round PVC Gasket
  • Heavy Gauge Spring Terminals
  • Protective Magnet Cover

PHYSICAL STRUCTURE

Outside Diameter (A) 8.56″ (217.5mm)
Cutout Diameter (B) 7.20″ (183mm)
Mounting Depth (C) 4.88″ (124mm)
GENERAL SPECIFICATIONS
Structure 8″ (20.32cm) Woofer
Dynamic Power Handling 4000 Watts
Nominal Power Handling 2000 Watts
Impedance Dual 4Ω Voice Coil
PARAMETERS
Resonant Frequency (fs) 51.30Hz
D.C. Voice Coil Resistance (Re) 6.8Ω
Mechanical Quality Factor (Qms) 3.122
Electrical Quality Factor (Qes) 0.478
Total Quality Factor (Qts) 0.415
Mass of Diaphragm/Coil (Mms) 90.280 g
Force Factor (Bl) 9.87

RECOMMENDED ENCLOSURES

Woofer Cut-out 7.20″ (183mm)
Mounting Depth 4.88″ (124mm)
Sealed Box 0.66 ft3 (18.68L)
Vented Box 1.16 ft3 (32.841L)
? Port Diameter 9.62 in (24.43 cm)
? Port length 16″ (40.64 cm)
? Tuning 38Hz
Dynamic Power 4000 Watts
Nominal Power 2000 Watts

Additional information

Weight 26.5 lbs

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