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Alpine S-W8D2

S-Series 8" subwoofer with dual 2-ohm voice coils

Item # 500SW8D2

To create great bass, you need the best in materials and engineering.

Read more from Crutchfield writer, Bob B.

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$119.99 each

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About the Alpine S-W8D2

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.

Great bass in less space

Alpine Authorized Online Dealer

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-W8D2 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 2-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.

To drive this single subwoofer, we recommend a mono amplifier rated between 225 and 450 watts RMS at 1 ohm or 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

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Product highlights:

  • 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
  • Our 60-day money-back guarantee
  • MFR # S-W8D2
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What's in the box:

  • One 8" Dual 2-ohm voice coil subwoofer
  • 1 Rubber concealing ring (installed)
  • Two 3" jumper cables (each has a single banana connector on each end)
  • Subwoofer Application Guide (English/ French)
  • On-line product registration information (English/ French/ Spanish)
  • Warranty information (English/ French)
  • Important Notice! (English/ French)

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More details on the Alpine S-W8D2

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Features
Enclosure Compatibility

Features

Kevlar Reinforced Pulp Cone: This Alpine S-Series subwoofer uses a parabolic cone structure, with a Kevlar reinforced pulp cone and a Poly-Mica-Talc dust cap. Kevlar adds strength and tear resistance to the woofer cone, while maintaining the damping benefits of a pulp cone material. The oversized, inverted dust cap increases rigidity and virtually eliminates cone distortion at extreme volume levels.

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

Progressive Spider: The progressive 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 extended pole geometry ensures a symmetrical magnetic field, while optimizing flux density to reduce distortion and further improve power handling and output.

Dual Voice Coils: For system flexibility, the woofer has two 2Ω voice coils. When the voice coils are wired in parallel, the woofer presents a 1Ω load. When the voice coils are wired in series, the woofer presents a 4Ω load.

Spring Terminals: The spring post terminals are all located on one side of the woofer. The terminals will accept pin connectors, single banana plugs, or bare wire up to 10 gauge.

Jumpers: Included with the woofer are two voice coil terminal jumpers. These jumpers allow you to easily wire the voice coils in parallel (for a 1Ω load) or series (for a 4Ω load).

Enclosure Compatibility

Sealed Box: Alpine recommends a sealed enclosure with an internal volume between 0.18 and 0.53 ft³, with an ideal volume of 0.3 ft³. Sealed enclosures provide the most control over a woofer, will handle a lot of power, and provide accurate sonic reproduction, making them suitable to all types of music.

Ported Box Volume: The recommended ported box volume ranges from 0.48 ft³ to 0.83 ft³, with the ideal size being 0.71 ft³, using a slot port measuring 7" (W) x ¾" (H) x 15½" (L).

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