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Alpine S-W12D4

S-Series 12" subwoofer with dual 4-ohm voice coils

Item # 500SW12D4

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

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

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Item # 500SW12D4

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$149.95 each

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About the Alpine S-W12D4

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-W12D4 12" sub can handle up to 600 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.

To drive this single subwoofer, we recommend a mono amplifier rated between 450 and 900 watts RMS at 2 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

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Product highlights:

  • 12" subwoofer with dual 4-ohm voice coils
  • Kevlar reinforced pulp cone with HAMR Santoprene rubber surround
  • frequency response: 26-200 Hz
  • power handling: 600 watts RMS (300 watts per coil)
  • peak power: 1,800 watts
  • top-mount depth: 5-1/16"
  • grille not included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # S-W12D4

What's in the box:

  • One 12" Dual 4-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)

Customer reviews

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Alpine S-W12D4 reviews

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Alpine S-W12D4

Crutchfield customer from Houston, TX on 6/12/2019

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Great sub for a well rounded system at a great price.

Pros:

Cons:

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1 of 1 found this helpful

Blew the Voice Coil Under Minimal Power in Less Than 3 Weeks

Trevor from Terryville on 6/9/2019

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This product is a pile of trash. I had it hooked up to an Alpine MRP-M1000 and had the gain turned all the way down. I only used it for about 3 weeks before the coils started smoking and in no time they uncoiled. Let this be a warning to future customers. Don't buy.

Pros: Bumps hard

Cons: Blew up in no time. Don't buy.

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1 of 4 found this helpful

Alpine S-W12D4

Crutchfield customer from Warsaw, IN on 3/29/2019

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Hooked this all up.. An hour later my trunk was smoking... Something had happened and all the voice coils unwrapped on the inside.. I truly believe this speaker i got was defective.. $$$ down the drain ??

Pros:

Cons:

Crutchfield response on 4/2/2019
Once we saw this review, our Tech Support specialist, Nicole, reached out to this customer to help him further. Whenever you encounter a problem with anything you purchase from Crutchfield, please contact our Tech Support team right away. Lifetime tech support comes with every Crutchfield purchase.

1 of 2 found this helpful

Alpine S-W12D4

Crutchfield customer from Winnemucca, NV on 3/11/2019

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Great product great quality and most of all price is reasonable .. the mounting depth is just what I needed for my speaker box of my titan

Pros: Concealed mounting gasket sticks further than hamr surround so no damage can be caused

Cons: None

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1 of 1 found this helpful

Alpine S-W12D4

David from Phenix City, AL on 2/7/2019

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Sounds great.

Pros:

Cons:

Crutchfield response on

2 of 2 found this helpful

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More details on the Alpine S-W12D4

Pat M.

Product Research

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 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 4Ω voice coils. When the voice coils are wired in parallel, the woofer presents a 2Ω load. When the voice coils are wired in series, the woofer presents an 8Ω 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 8 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 2Ω load) or series (for an 8Ω load).

Enclosure Compatibility

Sealed Box: Alpine recommends a sealed enclosure with an internal volume between 0.61 and 1.06 cubic feet, with an ideal volume of 0.85 cubic feet. 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 1.06 cubic feet to 1.56 cubic feet, with the ideal size being 1.51 cubic feet, using a slot port measuring 12-1/2" (W) x 1" (H) x 16" (L).

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