Alpine SWS-12D4

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

Item #: 500SWS12D4

In Stock

15 Reviews | 5 questions - 9 answers

Your price: $169.99 Earn up to 170 Rewards points

Add to Cart Free Shipping Lifetime Tech Support

+ Add to wishlist + Email me alerts for this product

Scratch & Dent: $144.49

View all associated offers

1.888.955.6000

Email

Chat

We don't check this item for fit or compatibility.

Bring on the bass

Alpine Authorized Online Dealer

You can tell that Alpine's bass pedigree runs deep in their latest line of Type-S subwoofers. Using technology found in their higher end subs, this sub will rock your system and add depth to your favorite tracks. You'll love the detail it brings to a bass guitar and the impact you'll feel when a kick drum hits. Throw a couple of these in your ride and prepare to be amazed by unrelenting bass.

Side view of SWS-12D4 subwoofer

Advanced materials

The SWS-12D4 can handle up to 500 watts of RMS power, so you can drive it hard and it'll keep up. The tough 12" Kevlar® treated cone stays rigid under pressure, while its rubber HAMRS surround allows for maximum excursion. Its dual 4-ohm voice coils allow for 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.

Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible.

To drive this single subwoofer, we recommend a mono amplifier rated between 375 and 750 watts RMS at 2 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

Product Highlights:

  • 12" subwoofer with dual 4-ohm voice coils
  • Kevlar reinforced pulp cone with HAMRS Santoprene rubber surround
  • frequency response: 26-200 Hz
  • power handling: 150-500 watts RMS (250 watts per coil)
  • peak power: 1,500 watts
  • sensitivity: 86.5 dB
  • top-mount depth: 5-13/16"
  • sealed box volume: 0.71-1.06 cu. ft.
  • ported box volume: 1.06-1.56 cu. ft.
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Hands-on research

What's in the box?

Download owner's manual

  • 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)
  • Type-S Subwoofer Application Guide (English/ French)
  • On-line product registration information (English/ French/ Spanish)
  • Warranty information (English/ French)
  • Important Notice! (English/ French)

Product Research

Features
Enclosure Compatibility

Features

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

HAMRS: 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 (65mm), high-temperature, 5-layer dual voice coils offer power handling up to 500W RMS / 1500W Peak (250 watts RMS per coil).

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 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 2-ohm load) or series (for an 8-ohm load).

Enclosure Compatibility

Sealed Box: Alpine recommends a sealed enclosure with an internal volume between 0.71 and 1.06 cubic feet, with an ideal volume of 0.9 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 to 1.56 cubic feet, with the ideal size being 1.46 cubic feet, using a slot port measuring 12.5" (W) x 1" (H) x 18" (L).

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Alpine SWS-12D4 Reviews

Average Customer Review:

15 reviews
Review this product
Great Gear Giveaway

Submit a review and then enter to win a $500 rewards card

(0)
(0)
(0)
(0)
(0)

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
Rate the following specific attributes
  Value
 Sound Quality
 Ease of Use
 "Coolness Factor"
 Build Quality
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

LOUD

Written By Ricky, Sabattus, maine on Wednesday, July 30, 2014

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

This sub is absolutely AMAZING! This sub shakes my whole car even turned up a 1/4 and when its all the way up i'm able to shake the cars next to me. I'm only feeding it 100 watts also since if i hooked it up to my sound ordanance m1500 it would probably destroy my battery.. So once i get a new battery it won't be thirsty anymore. I can't thank Crutchfield enough and alpine!! I will keep buying stuff from this website and will only buy from Crutchfield!

Pros: Loud

Cons: Nothing yet!

Alpine SWS-12D4

Written By Irishlad, Orwigsburg, PA on Monday, July 21, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

These subs are awesome..I purchased two 12 inch and are running them in a ported box along with a class d mono amp...can ya say thump! !!!

Pros: Priced right!!!

Cons: None

best sub ive owned

Written By ronnieb, elkhart indiana on Thursday, June 19, 2014

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

The best sub I've ever had. I heard it and immediately sold my 2 15 inch kicker squares to go get one with a ported bassworkx box and couldn't be happier.

Pros: Sounds like 2 15s

Cons: Not a single complaint

Amazing for the price

Written By bncjr, phenix city AL on Thursday, June 19, 2014

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

The bad reviews I read here sound like either improper amp match or improper amp gain settings. Do not let that discourage you. If you match it and set it up correctly it is amazing.

Alpine Type S 12' Sub

Written By Evan, Kennesaw GA on Friday, April 04, 2014

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I love this sub. Even though, yes it is my first sub and yes, I am probably fanboying over it, It hits really hard. i have it paired with alpines MRV-500 amp and have the gain set to 2/3 and bass boost set to 9db. I have a convertible mustang so I had to make a fiberglass enclosure- roughly .85 cubes- and it sounds great. hits the lows and is very loud. My only complaint is that there a slight ruffly sound it makes when it hits the extremities- higher or lower notes, but only I notice it- none of my passengers do. And yes, i have shocked them when i reveal that it is only one sub. Anyways, i recommend it.

Pros: Loud, accurate, great bang for buck.

Cons: Slight ruffling when it hits the higher or lower notes (almost inaudible though)

Great sub, almost as good as 1990 lanzar pro

Written By BatsonE, Aiken, SC on Friday, March 07, 2014

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I wanted to share my experience since I used to be very heavy in the Crank it up scene in the 80's-90's. I used to run Lanzar Pro subs with 90-93 db efficiency. These are 86db. You have to double the watts to add 3 db so a more efficient sub takes less power to get the same db as cheaper subs. This is a good tight well controlled sub in an enclosed box of 1.2 ft2. I am running 1 with a late 80's ZED audio made Autotek 7050BTS. This is a high current 22w x 2 amp that puts out around 150w at 2 ohm ( how I have it ) and 250w at 1 ohm. In my 4 door with the box in the trunk I hit 120db at the drivers seat with 1 sub. A pro sub would be 90+ db efficient but for the money and the low cost of amps now this is a very well controlled sub for rock, classical. jazz, and somewhat for rap. Would be best if ported for Rap but Chicago and all the other 80's groups sound great with it.( I'm old ) Oh, I played Boom Boom Pow to get the spl. I got beat by 2 db by cars with dual subs and/or 500-1000 watt amps. Well worth the money for tight controlled sound. There may be better for pure loudness but my systems have always been about SQ and not all about loudness.

Pros: Quality sound Tight base in sealed box

Cons: wish was more efficient 86db not good enough

Great Sub!

Written By Anonymous, Anchorage, Alaska on Friday, January 24, 2014

  • rating
    "Coolness Factor"
  • rating
    Build Quality
  • rating
    Ease of Use
  • rating
    Sound Quality
  • rating
    Value

I bought this sub to replace 2-10" subs I had before and it was well worth it! I have an Alpine MRP-M500 amp powering my 12" and it's perfect! I bought the 4 Ohm dual voice coil because I already had the amp an didn't want to buy a new one and I could just bridge the 12" from 4ohms to 2ohm which is perfect case now I can use all 500watts if I want and don't have to worry about overpowering the amp or sub.

Alpine Type S with an Audiopipe 1500

Written By Moyses, Indianapolis, IN on Monday, October 28, 2013

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Recently bought an alpine type s and wow does it pound. I decided to put it in a sealed box since i never used one before and let me tell you it sound incredible. I bought an audiopipe 1500 since i was on a budget and it does the job. One big thing though, i have all the settings and gains set really low because i dont kknow if the sub would accept all the 1500 watts. Sounds really good either way.

Pros: Looks very sleek with the black cone. Small and versatile. Version of older type r. Good for people on a budget.

Cons: None so far.

decent sub

Written By todd, Logan, OH on Friday, June 07, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Only using a 500 watt alpine amp turned up half way with the eq down and I smelled one of the voice coils but it still hits pretty good for a single 12, I would buy atleast a 700 rms amp and turn it down.

Pros: Looks build quality

Cons: Price, theres a lot better subs from the smaller guys that are every bit as good if not better for a lot less.

Great sub

Written By Derek, Cheektowaga, new york on Friday, April 19, 2013

  • "Coolness Factor"
  • rating
    Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Excellent but, got them like 6 months ago and they are great.

Pros: All around good, sounds is great

Cons: Nothing

Good sub

Written By Ts1991, Englewood ,Fl on Thursday, March 28, 2013

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

Sounds nice powered by a 500 watt alpine amp. Would defanitly buy again

////Alpine SWS-12D4

Written By J C, Sargent, Ne on Tuesday, March 26, 2013

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

i have two of these in my car in a ported box on a 1200 watt hifonics amp and every body tells me to turn them down when they are not even 3/4 the way to full power they will blow your socks off.

Pros: everything

Cons: little bit cheap on the terminals on the sub but they work fine

Alpine

Written By Justin, hudson, ohio on Saturday, July 28, 2012

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

bought one of these from my local car audio dealer. Powered by a powerbass 400.2 watt amp (with 800 watts peak power) and its inside a ported box. This sub does a really nice job and reallyyy bumps on songs with good bass. it rattles my change in my cup holder on some songs. If you got two these things would be devastating! but just one works too im pretty happy with it.

decent

Written By theo, hastings mn on Friday, June 22, 2012

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

everything is great on this sub except for the outside of the cone where the ruffles are. It makes it sound vibrating and not very good

Amazing

Written By Jp84, Bairdford, PA on Monday, May 28, 2012

  • "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

I have one type s in a ported box. It's powered by a Polk 880 mono block amp, and an alpine Ina-w900bt running everything. This sub is an incredible value 150 bucks for near type r performance. I am impressed and now an alpine fan for life.

Pros: Inexpensive and great performance.

Cons: I wish I would have bought two!

Get everything you’ll need to enjoy your new Alpine SWS-12D4

We've verified that these enclosures are a good match for this subwoofer.
It's critical to have good wire, and none is included with the sub.
Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
Add a grille and keep your sub safe.
These can be useful if you are building a custom box.
Sound Ordnance™ Bass Bunker

Sound Ordnance™ Bass Bunker

Sealed single 12" subwoofer enclosure (Model BB12-95S)

Item #: 777BB1295S

(21)

$59.99
Add to Cart
Sound Ordnance™ Bass Bunker

Sound Ordnance™ Bass Bunker

Ported dual 12" subwoofer enclosure (Model BB122-125V)

Item #: 777BB1222V

(17)

$79.99
Add to Cart
Sound Ordnance™ Bass Bunker

Sound Ordnance™ Bass Bunker

Sealed dual 12" subwoofer enclosure (Model BB122-100S)

Item #: 777BB1221S

(9)

$59.99
After $20.00 Price Break Add to Cart
T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW16WB1

(13)

T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW12WB1

(30)

Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

Item #: 541SPW516B

(51)

Dynamat SuperLite Tri-Pak

Dynamat SuperLite Tri-Pak

Triple package — 3 sheets, 12 square feet (Model #10612)

Item #: 15410612

(17)

$69.99
Add to Cart
Dynamat Xtreme Trunk Kit

Dynamat Xtreme Trunk Kit

5 sheets, 20 square feet

Item #: 15419405

(13)

$169.99
Add to Cart
Dynamat 19100

Dynamat 19100

License Frame Kit

Item #: 15419100

(15)

$14.99
Add to Cart
Dynamat Xtreme Wedge Pack

Dynamat Xtreme Wedge Pack

1 sheet, 4 square feet

Item #: 15410425

(7)

$39.99
Add to Cart
Dynamat Dynaliner

Dynamat Dynaliner

One 54" x 32" sheet (1/8" thick)

Item #: 15411101

(6)

$69.99
Add to Cart
Alpine KTE-12G

Alpine KTE-12G

Grille for 12" Type-R and Type-S subwoofers

Item #: 500KTE12G

(26)

$29.99
Add to Cart
Speaker Grilles

Speaker Grilles

(12" waffle style)

Item #: 125G12

(43)

Polyester Fiber Stuffing

Polyester Fiber Stuffing

Make your subwoofer think it's in a bigger box (1-pound pack)

Item #: 027808

(35)

$12.99
Add to Cart
Metra Speaker Terminal

Metra Speaker Terminal

Round terminal cup with binding post connectors (for do-it-yourself box builders)

Item #: 120TCRB

(13)

Metra Box Carpet

Metra Box Carpet

Carpet roll (54" x 5 yards) — available in 3 colors (Black)

Item #: 120TL3015

(24)

$39.99
Add to Cart
Rubber Feet

Rubber Feet

Item #: 125F1692

(4)

Metra Speaker Terminal

Metra Speaker Terminal

Square terminal cup with binding post connectors (for do-it-yourself box builders)

Item #: 120TCSB

(7)

Corner Protectors

Corner Protectors

Item #: 1251536

(5)

Metra Speaker Terminal

Metra Speaker Terminal

Round terminal cup with spring clip connectors (for do-it-yourself box builders)

Item #: 120TCRS

(6)

Springback Handle

Springback Handle

Item #: 125H1051K

(2)

Metra Speaker Terminal

Metra Speaker Terminal

Square terminal cup with spring clip connectors (for do-it-yourself box builders)

Item #: 120TCSS

(7)

Autosound 2000 Disc One

Autosound 2000 Disc One

Low Frequency Test CD (Disc One)

Item #: 503CD101

(1)

$19.99
Add to Cart

Questions & Answers Ask the community. Share your knowledge.

5 questions already asked

Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system. [ Krissy  Nov 14, 2014 ]  Staff
yes [ rudy  Nov 14, 2014 ]
yes. you need a good amp for these aswell. you might be able to fit it in your cars sub space in the back (if you have one), but i doubt it could fit a twelve And i don't think factory subwoofer amps could put enough power into it. [ Todd M.  Nov 13, 2014 ]
Yes, to optimize the sound properly the sub needs to be in a box [ BRAD P  Nov 12, 2014 ]
Yes. I just had the local place that was installing it put it in a box. Also recommend you secure it in the back so it won't slide around back there. [ AARON C  Nov 12, 2014 ]
Thanks for your question. For information on comparing two or more models I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget. [ Krissy  Mar 02, 2014 ]  Staff
Thanks for your question. For recommendations I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget. [ Jeff  Feb 08, 2014 ]  Staff
hi I have a alpine mrp m500 want to know if sws 12d4 is ok for my amp? thanks [ hector  Feb 18, 2014 ]
It depends on what type of amp you have, you either wire it in series or parallel based on your ohm rating of your amp and subwoofer. There is a wiring diagram chart on crutchfield. [ STEPHEN  Dec 27, 2013 ]