1.888.955.6000
 
 
1-888-955-6000
crutchfield.com
Crutchfield

Alpine SWR-12D2

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

Watch video
Zoom
  • Alpine SWR-12D2

    Front

  • Alpine SWR-12D2

    Back

  • Alpine SWR-12D2

  • Alpine SWR-12D2

  • Alpine SWR-12D2

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

Our take on the Alpine SWR-12D2

by John Pollard
Alpine

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.

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.

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
 

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Size
Loading...
12 -inch
Impedance
Loading...
2 ohms
Cone Material
Loading...
Pulp-Kevlar
Surround Material
Loading...
Santoprene
Ideal Sealed Box Volume (cubic feet)
Loading...
0.85
Ideal Ported Box Volume (cubic feet)
Loading...
1.48
Port diameter (inches)
Loading...
N/A
Port length (inches)
Loading...
N/A
Free-Air
Loading...
No
Dual Voice Coil
Loading...
Yes
Sensitivity
Loading...
84.7 dB at 1 watt
Frequency Response
Loading...
24 - 200 Hz
RMS Power Range (Watts)
Loading...
300-1000
Peak Power Handling (Watts)
Loading...
3000
Top Mount Depth (inches)
Loading...
6 3/8
Bottom Mount Depth (inches)
Loading...
7 3/16
Cutout Diameter or Length (inches)
Loading...
10 7/8
Vas (liters)
Loading...
46
Fs (Hz)
Loading...
27
Qts
Loading...
0.44
Xmax (millimeters)
Loading...
20
Parts Warranty
Loading...
1 Year
Labor Warranty
Loading...
1 Year
Product 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)

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.

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).

 
Review this product
Great Gear Giveaway rewards card

Submit a review and you will be entered to win a $150 gift card

Crutchfield Great Gear Giveaway Official Sweepstakes Rules

Alpine SWR-12D2 Reviews

Average Customer Review:

13 people say:

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
Filter by rating:
4 out of 5

Alpine Subwoofers

Written By Tyler, Silverthorne, Colorado on Saturday, April 12, 2014
Crutchfield Customer Review (What's this?)
 
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.
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

wanger

Written By el jefe, kewanee IL on Wednesday, March 26, 2014
Crutchfield Customer Review (What's this?)
 
Look good and sound better
Pros:
Hits hard for the $$
Cons:
Haven't seen any so far
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

Alpine SWR-12D2

Written By Jeff, louisiana on Friday, March 07, 2014
Crutchfield Customer Review (What's this?)
 
Sounds great paired with a Memphis amp
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

Another solid Alpine product

Written By Wayne, Madison, WI on Wednesday, February 19, 2014
Crutchfield Customer Review (What's this?)
 
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.
2 out of 2 people found this helpful
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

Finally. A Sub I can live with!

Written By Brian, Georgia on Friday, January 31, 2014
 
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.
2 out of 2 people found this helpful
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

Amazing SQ with tons of SPL

Written By Chad McCormick, Columbus Georgia on Friday, July 05, 2013
Crutchfield Customer Review (What's this?)
 
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!
9 out of 9 people found this helpful
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

Ride with this thumper!

Written By Bwendan, Lafayette, Ca on Monday, March 04, 2013
 
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
10 out of 10 people found this helpful
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

Amazing

Written By donD, saskatchewan on Wednesday, February 27, 2013
 
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
2 out of 2 people found this helpful
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

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

Written By Bill K, Huntington, IN on Wednesday, February 13, 2013
Crutchfield Customer Review (What's this?)
 
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!!
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

Type R's Go Hard

Written By Al Pine, Connecticut on Monday, October 08, 2012
 
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.
3 out of 3 people found this helpful
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

Awesome

Written By Jason, Waynesboro, Va on Sunday, June 03, 2012
 
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
7 out of 11 people found this helpful
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

Amazing Sub

Written By pHaTe, Fort Dodge, IA on Sunday, April 29, 2012
 
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.
4 out of 5 people found this helpful
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 
5 out of 5

Alpine type r SWR-12D2

Written By Moncur18, Yorkton, SK on Tuesday, April 17, 2012
 
This subwoofer is going to be the best subwoofer alpine has sold by FAR.
3 out of 5 people found this helpful
Was this review helpful?    Yes | No
"Coolness Factor"
Build Quality
Ease of Use
Sound Quality
Value
 

1 question already asked

I have two alpine swr 12d2 subs and would like to know how to wire them at two ohms? can u help plz [ el  Apr 12, 2014 ]
1 answer

Add accessories for the Alpine SWR-12D2

We've verified that these enclosures are a good match for this subwoofer. See all categories & accessories

Sound Ordnance™ Bass Bunker Sealed single 12" subwoofer enclosure (Model BB12-95S)
19 people say
Your Price: $59.99
Add to Cart
Sound Ordnance™ Bass Bunker Ported dual 12" subwoofer enclosure (Model BB122-125V)
12 people say
Your Price: $79.99
Add to Cart
T-Spec 16-gauge Speaker Wire Black/white jacket — priced per foot
9 people say
Your Price: $0.69
Add to Cart
T-Spec 12-gauge Speaker Wire Black/white jacket — priced per foot
17 people say
Your Price: $1.99
Add to Cart
Stinger PRO Series 16-gauge Speaker Wire Black jacket — priced per foot
37 people say
Your Price: $0.39
Add to Cart
Dynamat SuperLite Tri-Pak Triple package — 3 sheets, 12 square feet (Model #10612)
12 people say
Your Price: $69.99
Add to Cart
Dynamat Xtreme Trunk Kit 5 sheets, 20 square feet
11 people say
Your Price: $169.99
Add to Cart
Dynamat 19100 License Frame Kit
11 people say
Your Price: $14.99
Add to Cart
Dynamat Xtreme Wedge Pack 1 sheet, 4 square feet
6 people say
Your Price: $39.99
Add to Cart
Dynamat Dynaliner One 54" x 32" sheet (1/8" thick)
5 people say
Your Price: $69.99
Add to Cart
Alpine KTE-12G Grille for 12" Type-R and Type-S subwoofers
18 people say
Your Price: $29.99
Add to Cart
Polyester Fiber Stuffing Make your subwoofer think it's in a bigger box (1-pound pack)
31 people say
Your Price: $12.99
Add to Cart
Metra Speaker Terminal Round terminal cup with binding post connectors (for do-it-yourself box builders)
8 people say
Your Price: $9.99
Add to Cart
Metra Box Carpet Carpet roll (54" x 5 yards) — available in 3 colors (Black)
14 people say
Your Price: $39.99
Add to Cart
2 people say
Your Price: $5.99
Add to Cart
Metra Speaker Terminal Square terminal cup with binding post connectors (for do-it-yourself box builders)
5 people say
Your Price: $9.99
Add to Cart
5 people say
Your Price: $9.99
Add to Cart
Metra Speaker Terminal Round terminal cup with spring clip connectors (for do-it-yourself box builders)
5 people say
Your Price: $3.99
Add to Cart
2 people say
Your Price: $9.99
Add to Cart
Metra Speaker Terminal Square terminal cup with spring clip connectors (for do-it-yourself box builders)
5 people say
Your Price: $3.99
Add to Cart
Autosound 2000 Disc One Low Frequency Test CD (Disc One)
1 person says
Your Price: $19.99
Add to Cart
Your Price: $69.95
Add to Cart
Autosound 2000 Disc Four Amplifier Optimizer Test CD
7 people say
Your Price: $9.99
Add to Cart

Why choose SquareTrade?

The #1-Rated Protection Plan

Thousands of people have reviewed SquareTrade Protection Plans — and made us #1.

5-Day Service Guarantee & Free Shipping

We'll repair or replace your item in five business days or less after we've received it, or your plan is free. And, as always, we pay for all shipping.

Protection from Normal, Everyday Use

Repairing your average mechanical or electrical failure can cost as much as buying a new device. With SquareTrade, you're covered — including parts and labor.

3 Year Protection Plan
3 Year Protection Plan
Your Price: $34.99
Add to Cart

For a more in-depth review and enhanced detailed information on the Alpine SWR-12D2, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_500SWR12D2/Alpine-SWR-12D2.html ).

Get live, personalized service from an expert

Crutchfield Advisor: Hi there.

Crutchfield Advisor: We're happy to answer questions or provide additional info about this item.

Advisors also available at 1-888-600-3963