Alpine SWR-8D2 Type-R 8″ Subwoofer With Dual 4-ohm Voice Coils

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$299.00 $149.99

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Alpine SWR-8D2 Type-R 8″ Subwoofer With Dual 4-ohm Voice Coil

  • 8″ subwoofer with dual 2-ohm voice coils
  • Kevlar reinforced pulp cone with Hamr Santoprene rubber surround
  • Frequency response: 30-200 Hz
  • Power handling: 150-350 watts RMS (175 watts per coil)

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SKU: SWR8D2 Category:

Frequently Bought Together

Alpine SWR-8D2+
Price for both:   $635.99

Product Description

Alpine SWR-8D2 Type-R 8″ Subwoofer With Dual 4-ohm Voice Coils

Alpine SWR-8D2 Type-R subwoofer has a two-piece structural parabolic Kevlar reinforced pulp cone. Kevlar adds strength and tear resistance to the woofer cone while maintaining the benefits of a pulp cone design. There is also an oversized inverted poly-mica dust cap, which increases rigidity and virtually eliminates cone distortion at extreme volume levels.

Alpine SWR-8D2 Type-R Subwoofers will bring big bass to just about any vehicle. The SWR-8D2 8″ sub features a cone made from Kevlar treated pulp the same material used to make bulletproof vests and its durable HAMR Santoprene surround allows for huge amounts of excursion. This sub was built for bassheads that want the best of both worlds accurate response and otherworldly thump.


The woofer features a High Amplitude Multi Roll Surround (HAMRS), made of Santoprene, that allows a large linear excursion and greater SPL. The HAMRS design allows extreme excursions without sacrificing valuable cone area.

Progressive Spider

The progressive Conex spider has reinforced layer tinsel leads to ensure reliable and consistent control of the tinsel leads and eliminate any mechanical noise or interference often seen in high excursion cone designs.

Compound Radius Curve Pole Geometry

Alpine’s Patented Compound Radius Curve pole geometry ensures a symmetrical magnetic field, while optimizing flux density to reduce distortion and further improve power handling and output.

Oversized Voice Coil

The oversized (40mm), high-temperature, 4-layer dual voice coils offer increased power handling to 350W RMS / 1000W Peak.

Dual Voice Coils

For system flexibility, the woofer has two 4-ohm voice coils. When the voice coils are wired in parallel, the woofer presents a 2-ohm load. When the voice coils are wired in series, the woofer presents an 8-ohm load.

Spring Terminals

The spring post terminals are all located on one side of the woofer. The terminals will accept bare wire up to 8 gauge, pin connectors, or single banana plugs.


Included with the woofer are two voice coil terminal jumpers. These jumpers allow you to easily wire the voice coils in parallel (for a 2-ohm load) or series (for an 8-ohm load).

Additional Information


– Subwoofer Series>: Type-R (Alpine)
– Subwoofer Size: 8″
– Peak Power Handling: 1000 watts
– RMS Power Handling: 350 watts
– Voice Coil(s): Dual
– Impedance (Per Voice Coil): 4 ohms
– Voice Coil Diameter: 1-5/8″
– Frequency Response: 30 – 200 Hz
– Sensitivity: 40 dB
– Xmax (millimeters): 12 mm
– Subwoofer Design: Round / Circle
– Main Cone Color: Black
– Woofer Composition: Kevlar Reinforced Pulp Paper
– Woofer Surround: Santoprene Rubber
– Magnet Structure: Double Stacked
– Subwoofer Grille: No
– Re-Cone Kit Available: No

Car Subwoofer Size


RMS Power

101 to 200 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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