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Alpine S-W8D2 S-Series 8″ Subwoofer With Dual 2-ohm Voice Coils

Alpine S-W8D2 S-Series 8″ Subwoofer With Dual 2-ohm Voice Coils


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Great bass requires the best materials and engineering. Alpine’s S-Series subwoofers use advanced technology from higher-end subs to bring your music to life. Also, these subs are an inch shallower than their predecessors, making them ideal for spaces where standard high-power subs won’t fit.

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sku: S-W8D2

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Key Features:

  • 8″ subwoofer with dual 2-ohm voice coils
  • Kevlar reinforced pulp cone with HAMR Santoprene rubber surround
  • frequency response: 34-200 Hz
  • power handling: 300 watts RMS (150 watts per coil)
  • peak power handling: 900 watts
  • top-mount depth: 3-3/4″
  • grille not included
  • warranty: 1 year

Features & specs

Size 8 -inch
Impedance 1 ohm
Cone Material Kevlar-Reinforced Pulp
Surround Material Rubber
Ideal Sealed Box Volume (cubic feet) 0.3
Ideal Ported Box Volume (cubic feet) 0.71
Port diameter (inches) N/A
Port length (inches) N/A
Free-Air No
Dual Voice Coil Yes
Sensitivity 83.4 dB at 1 watt
Frequency Response 34 – 200 Hz
Max RMS Power Handling 300
Peak Power Handling (Watts) 900
Top Mount Depth (inches) 3 3/4
Bottom Mount Depth (inches) 4 3/8
Cutout Diameter or Length (inches) 6 15/16
Vas (liters) 6.5
Fs (Hz) 48
Qts 0.54
Xmax (millimeters) 13
Parts Warranty 1 Year
Labor Warranty 1 Year


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Additional information

Subwoofer size

Airspace Requirements




Standard Subwoofer Design


Dual 2 ohm

Frequency Response, Low


Subwoofer Power Handling RMS