PowerBass 8 Inch Dual 4-Ohm Subwoofer - S84D

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  • 8" Dual 4-Ohm Subwoofer
  • 125 watt RMS/250 Watts Max
  • Proprietary DDC Coated Paper/Wool Cone
  • Pressed 4-Layer Large Roll Foam Surround
  • 1.5" Vented BASV Voice Coil Former
  • Perimeter Aero-Vent Voice Coil Cooling Vents
  • Non Resonance DDC Coated Stamped Steel Basket
  • Rubber Mounting Gasket/Trim Ring
  • Chrome Push Terminals
  • Optimally Designed for Both Small Sealed or Ported Enclosures 


Our improved S-Series subwoofers bring value to a whole new level. This year we rounded out the line by adding a couple of 8-inch subwoofers. You will be impressed with the oversized motor structure for high-power handling and greater reliability during heavy hitting bass passages.

PowerBass S-Series woofers featuring a 4-layer wool/paper cone now sport a treated non-resonant finished, stamped steel basket that is custom tooled with our distinctive X design. A 2" BASV voice coil former (1.5" on the 8") is used on the 10 and 12-inch models and like the entire Autosound range, we also offer a Large Roll foam surround for precise linear movement of the cone, which equals loud bass.

The S Series subwoofers are well-suited for small sealed or ported enclosures and use dual 4-ohm and single 4-ohm voice coils for multiple bass applications. Now more than ever, our S-Series woofers provide lots of value without sacrificing hard-hitting performance.

Nominal Impedance: Dual 4-ohm
BL: 6.4
Inputs: Dual Coil
Subwoofer Frequency Range: 42 Hz - 800 Hz
Voice Coil Size: 1.5 in
Material: Pressed Wool / Paper
Magnet Size: 116 oz
Sensitivity (1W / 1M): 86 dB
Motor Structure: 116 oz
Cutout Diameter: 7 1/8 in
Mounting Depth: 3.5 in
Xmax: 7 mm
Spl: 86 dB
No: 0.23%
Qts: 0.46
Qes: 0.521
Qms: 4.3
Mms: 51.5 g
Cms: 279 uM/N
Vas: 18.4 Ltr
SD: 206.12 sqCM
Fs: 42 Hz
Test Impedance: 1.65-ohms
VC Impedance: 4-ohm + 4-ohm
Size: 8 in
Sensitivity: 86 dB
Frequency Response: 42 Hz - 800 Hz
Voice Coil Size: 1.5 in
Power Handling (RMS/Peak): 125 / 250 watts

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