Alpine S-W8D4 S-Series 8″ Dual 4-Ohm Subwoofer

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$229.00 $159.99

Condition: New

Alpine S-W8D4 S-Series 8″ Dual 4-Ohm Subwoofer

  • 300 Watts RMS and 900 Watts Peak
  • Frequency Response: 34Hz-200Hz
  • Mounting Depth: 3 3/4-inch
  • Impedance: 4 Ohm

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SKU: SW8D4 Category:

Frequently Bought Together

Alpine S-W8D4+Alpine X-A90V
Price for both:   $1,298.00

Product Description

Alpine S-W8D4 S-Series 8″ Dual 4-Ohm Subwoofer

The Alpine S-W8D4, a newly released S-Series subwoofer with lots of technical improvements. It sports 900 watts of power with a Dual 4-ohm impedance. Elegant looking 8 inch diameter will surely provide you the bass you need.

Great bass in less space

To create great bass, you need the best in materials and engineering. Alpine’s S-Series subwoofers apply technology from their higher end subs to bring you the depth and punch that’ll make your tunes come alive. And to make things even better, these subs are about an inch shallower than their predecessors, making them great candidates for locations where regular high-power subs won’t fit.

Advanced materials

The S-W8D4 8″ subwoofer can handle up to 300 watts RMS, so you can drive it hard without any worries. The tough Kevlar® treated cone stays rigid under pressure, while its rubber High Amplitude Multi-Roll (HAMR) surround enables maximum excursion for impressive performance. Its dual 4-ohm voice coils allow for extra wiring flexibility, which helps if you plan on adding another subwoofer down the line. Also, it rocks in both sealed and ported boxes, so you can choose an enclosure that suits your tastes.

Additional Information


– RMS Power Range: 300 Watts
– Maximum Power: 900 Watts
– Impedance: 4 Ohm
– Frequency response: 34-200 Hz
– Low Frequency response: 34 Hz
– High Frequency Response: 200 Hz
– Diameter: 8 Inch
– Shallow Mount: No
– Number of Voice Coils: Dual
– Mounting Depth: 3-3/4 Inches

Car Subwoofer Size


RMS Power

201 to 400 Watts

Estimated Shipping

When you add an item to your cart the Estimated Shipping* cost will be shown.  This estimated shipping* cost is accurate to most major city locations across Canada.  If the shipping cost is higher than the estimated shipping* then GibbysESM will contact you for approval before we process your order.

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Alpine Canada 1 Year Limited Warranty


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