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Alpine SWR-12D2

Type-R 12" subwoofer with dual 2-ohm voice coils

Item #: 500SWR12D2

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17 Reviews | 3 questions - 3 answers

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Maximum bass output

Alpine Authorized Online Dealer

Alpine's Type-R subwoofers will bring big bass to just about any vehicle. The SWR-12D2 12" 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.

Side view of SWR-12D2 subwoofer

Bring on the power

The SWR-12D2 can handle an astounding 1000 watts of RMS power, so be sure to choose a suitable amplifier as these bass monsters definitely want lots of power. Its dual oversized 2-ohm voice coils offer the wiring flexibility you'll appreciate as your system changes and grows, so you can always pull maximum power from your amp. It works well in sealed and ported enclosures so you can choose what kind of bass you want to hear and feel.

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 750 and 1500 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

Product Highlights:

  • 12" subwoofer with dual 2-ohm voice coils
  • Kevlar reinforced pulp cone with HAMRS Santoprene rubber surround
  • frequency response: 24-200 Hz
  • power handling: 300-1,000 watts RMS (500 watts per coil)
  • peak power: 3,000 watts
  • sensitivity: 84.7 dB
  • top-mount depth: 6-3/8"
  • sealed box volume: 0.75-1.00 cu. ft.
  • ported box volume: 1.25-1.50 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 2-ohm voice coil subwoofer
  • 1 Rubber concealing ring (installed)
  • Two 3" jumper cables (each has a single banana connector on each end)
  • Type-R 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-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.

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, 4-layer dual voice coils offer increased power handling to 1000W RMS / 3000W Peak.

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

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 1-ohm load) or series (for a 4-ohm load).

Enclosure Compatibility

Sealed Box Volume: The recommended sealed box volume ranges from 0.65 cubic feet to 1.1 cubic feet, with 0.85 cubic feet being the ideal size.

Ported Box Volume: The recommended ported box volume ranges from 1.1 cubic feet to 1.6 cubic feet. The ideal size is 1.48 cubic feet, using a slot port measuring 12-1/2" (W) x 1" (H) x 19" (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 SWR-12D2 Reviews

Average Customer Review:

17 reviews
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Alpine Type R

Written By MarcR, Oakes, ND on Thursday, December 18, 2014

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

Bought a pair of these off a friend and I only run them with a tiny 250w amp and they still pound really hard. They are about perfect with a 600w though.

Pros: Look amazing, great sound.

Cons: pretty heavy, especially paired in a box haha.

The mother of all speakers

Written By Anonymous, Kapaa, HI on Sunday, November 16, 2014

Crutchfield Customer Review (What's this?)

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

This is the mother load....this speaker has the deepest bass of any speaker I have ever owned. It take a good sized amp to run it but you will be more than satisfied with your purchase.

Pros: Clear deep bass, great design, cool logoing, and clear instruction for various uses.

Cons: Needs a large amp...power hungry

amazing BANG FIR YOUR BUCK.

Written By MGKMAN NYC, Brooklyn NY on Thursday, September 11, 2014

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

My first amp was an alpine 500 watt which worked really good. I then wanted Moore so I go 1000/1 jl audio amp and its insane. One is all you need. I had a w6 jl 12" and this one has it beat and half the cost. Alpine pounds on. 10/10

Pros: Perfect hard hitting bass of any type if wired and. Paired right

Cons: None

could hit harder

Written By Anonymous, rock springs, wy on Saturday, July 26, 2014

Crutchfield Customer Review (What's this?)

Well for being a 1000 rms and 3000 max sub it does not handle power well. I had a 2500 watt amp and heard voice through it so I sold the amp and got a DC 1.2k wired to a 1ohm the amp pushes it hard and sub heats up quick. Now before I had this sub, I had a Kenwood performance and I felt it hit harder at a 600 rms and 1200 max. If I could take it back, I would.

Pros: Easy to use, just plug and play

Cons: Heats up quick and doesn't hit as hard as you think.

Alpine Subwoofers

Written By Tyler, Silverthorne, Colorado on Saturday, April 12, 2014

Crutchfield Customer Review (What's this?)

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

I think they look SWEET! Listened to them at the local sound shop and they are clear. They look very sleek!

Pros: Look great!

Cons: A little pricey.

wanger

Written By el jefe, kewanee IL on Wednesday, March 26, 2014

Crutchfield Customer Review (What's this?)

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

Look good and sound better

Pros: Hits hard for the $$

Cons: Haven't seen any so far

Alpine SWR-12D2

Written By Jeff, louisiana on Friday, March 07, 2014

Crutchfield Customer Review (What's this?)

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

Sounds great paired with a Memphis amp

Another solid Alpine product

Written By Wayne, Madison, WI on Wednesday, February 19, 2014

Crutchfield Customer Review (What's this?)

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

Running 1 Type R on a JL J21000.1. Sounds great, a big improvement over last year's model.

Pros: Can handle more than enough power for a medium duty system. Woofer feels very sturdy.

Cons: Not for the larger ported SO sub box.

Finally. A Sub I can live with!

Written By Brian, Georgia on Friday, January 31, 2014

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

I've swapped in and out pairs of cheap ($30) and middle of the road ($60) 10" subwoofers and I even gave Pioneer's top model 12" a try but none of them has made me happier than this subwoofer. It has always been a trade off between bass and space in the past. 2 10s in a 2 cubic foot sealed or a 3 cubic foot ported box. Now I've been getting the same output from one 12" in a 1 cubic foot sealed box. Lately I've built a ported box tuned to around 32 hz and it has even better output. Now the bottom note in Young Jeezy's: Put On has become not only audible, but vibrates the seats in my full-sized sedan. Even though this subwoofer is extremely loud, it is not a "kiddish" or "childish" thing. This subwoofer produces well-refined, accurate, and detailed sound that will give your vehicle a real luxury feeling when you listen to it at low volumes. And of course, when you do feel like letting everyone in a parking deck know you're there, you can.

Pros: Loud when you want it to be. Deep, soothing sound at low volume. Small box size. Requires very little power to get a lot of output. Good looking.

Cons: The grill to protect it is expensive. It weighs 30lbs. Not that I have a problem with that. Just trying to find something negative about it.

Amazing SQ with tons of SPL

Written By Chad McCormick, Columbus Georgia on Friday, July 05, 2013

Crutchfield Customer Review (What's this?)

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

This is an amazing subwoofer, but if you wire it incorrectly or under-power it, prepare to be underwhelmed. Of course that goes for all subs though. I do recommend a bigger box than the specs provided by Alpine. I built a box to their specs and it sounded great. Then to increase volume inside the box (as an experiment) I inverted the sub and got a drastic increase in SPL. I'm not necessarily recommending inverting, because I feel like my sub is to exposed, but I do recommend at least 2 cubic feet inside a ported box. And that is not counting the port or subwoofer displacement. Of course tune it how you like, but I do not feel like I lost any SQ with the added volume. In fact I feel like I gained some on songs that do not have much bass.

One of these subwoofer **properly powered** is enough for someone who wants excellent sound quality, with the capabilities to get loud when they want. You have to plan for the future also. If you plan on having 2 of these, be sure to buy the 2 ohm version, but if you are going to stick with one, I recommend the 4 ohm version. That way in the end you will have 2 total ohms and will be able to get the most from your amp

Pros: Excellent SQ and SPL Can get loud, but also doesn't sound bass heavy on songs that are not bass heavy.

Cons: Requires a little knowledge of impedance. But no worries! Crutchfield is here to help!

Ride with this thumper!

Written By Bwendan, Lafayette, Ca on Monday, March 04, 2013

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

I bought this sub just under a year ago and I cannot be happier with it. I knew I wanted one for a long time but I could not decide on which one to get. I decided to get one sub with a 500W amp and I am not at all disappointed with my purchase. I use it every single time I drive somewhere. Having a sub like this made me appreciate certain kinds of music more because it adds a whole new element to the beat and song. When I crank the volume it is a massage.

Pros: Hits crisp high and low frequencies. Better low's than friends 2x JL W3.

Cons: None

Amazing

Written By donD, saskatchewan on Wednesday, February 27, 2013

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

words cant describe this sub. i had one 12 inch type S and liked it but cold weather got to it and cracked the surround so I upgraded to 1 12 type R running off a alpine mrx-m110 amp with all alpine type s 6x9s in the vehicle and with the amp only runnin half power and the deck at -7 for bass the sub still overpowers the 4 speakers. It ratteled the windshield so much the seal on it broke. The Break in period did take about 30 to 40 hours but it really hits every note clean and can hold the bass no problem. Alpine is definately in my mind and others who have heard my system the best audio company out there with reasonable prices for their products.

Pros: just incredible, strong bass, loud, clear, crisp, hits every frequency, awesome

Cons: heavy haha, too much bass

9.5 on the Richter scale....DAYuuuuuum!!

Written By Bill K, Huntington, IN on Wednesday, February 13, 2013

Crutchfield Customer Review (What's this?)

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

These are the best subs Ive ever had. They hit very hard with no distortion and the sound is truely amazing. Very cool having the cooling hole through the magnet to the VC. I recommend these subs to bass heads who love serious bass without distortion or breakoff. Worth every penny!! Thank you Crutchfield for awesome fast and safe shipping of my subs.....kodos

Pros: great looks, great sound, decent price for what you get.....and we all know you get what you pay for :)

Cons: none!!

Type R's Go Hard

Written By Al Pine, Connecticut on Monday, October 08, 2012

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

I have a pair of alpine type r 12s in a ported box in the back of my 2003 mazda protege5. (hatch). hooked up 2 ohms to a 1000w alpine amp (last years model), only pushing each at half of the capable RMS, and these things quake. they have already made my rear view mirror out of a function. even side mirrors shake. At only 25/35 volume they out weigh my mids and highs by far. if youre looking for a set of QUALITY subs that are made to last and bump, go for alpine. dont go with kicker or some other crap. i out beat my buddies 3x type e's to a 4000w cheapo amp. both of us have the loudest bang around town though. these are really good buy.

Pros: quality reliable tight tuned

Cons: i blew my type s's so i upgraded to r and have had absolutely no problems.

Awesome

Written By Jason, Waynesboro, Va on Sunday, June 03, 2012

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

With a growning family I had made the choice to retire my 2 12" infiniti kappa subs and replace them with a smaller 10" sub so I could reclaim some trunk space. I am running a Profile AP2000 960 watts RMS @ 4 ohms & a Kenwood DNX 5120 head unit. I chose the Alpine SWR-10D2 as it seemed a very good choice and could handle the power my amp puts out as well as it was a smaller sub. I had that sub for almost a week it packed a really good punch but was leaving a some to be desired so I did some research and decided the 2 inches each direction of box space and an additional $50 would be well worth the investment if I could get the depth back in my music that I liked having. I do not regret the choice at all this sub hits every bass note in every song I could throw at it. Most of which it hammered great with the sub output on - 16 (Negative). I haven't had to turn the sub out on my head unit past -10 (negative) for any music type. This thing is insane!!!!

Pros: Ample power handling, Very responsive to all music types

Cons: None that have been found yet unless to loud for the nieghbors is a con

Amazing Sub

Written By pHaTe, Fort Dodge, IA on Sunday, April 29, 2012

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

This sub is amazing, I only put one in my '02 Expedition in a custom ported box powered by the Alpine M110 amp and it hits HARD. Amazing value for the sub at only $250.

Pros: Looks great, sounds great, hits hard as hell.

Cons: None.

Alpine type r SWR-12D2

Written By Moncur18, Yorkton, SK on Tuesday, April 17, 2012

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

This subwoofer is going to be the best subwoofer alpine has sold by FAR.

Get everything you’ll need to enjoy your new Alpine SWR-12D2

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 single 12" subwoofer enclosure (Model BB12-150V)

Item #: 777BB12150

(30)

$59.99
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
Sound Ordnance™ Bass Bunker

Sound Ordnance™ Bass Bunker

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

Item #: 777BB1222V

(17)

$79.99
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

(31)

Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

Item #: 541SPW516B

(53)

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

(14)

$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
Polyester Fiber Stuffing

Polyester Fiber Stuffing

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

Item #: 027808

(36)

$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

(14)

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.

3 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 09, 2014 ]  Staff
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  Jul 17, 2014 ]  Staff
I forwarded your question to an Advisor and they responded with the following: You can check out the wiring diagram for two of those subs and a mono amp here: http://a248.e.akamai.net/pix.crutchfield.com/ca/learningcenter/car/subwoofer_wiring/2DVC_2-ohm_mono.jpg If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy  Apr 13, 2014 ]  Staff