Alpine Type-S SWS-12D2 1500W Peak 12" Type-S Series Dual 2-Ohm High Performance Subwoofer

Alpine Type-S SWS-12D2

1500W Peak 12" Type-S Series Dual 2-Ohm High Performance Subwoofer

1500W Peak 12" Type-S Series Dual 2-Ohm High Performance Subwoofer

• 1500W Peak
• 500W RMS
• Dual 2-Ohm Voice Coil
• Kevlar Treated Pulp Cone
• Durable HAMR Santoprene™ Surround

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

sw12d2 thumbnail

Alpine S-W12D2

OUR PRICE: $179.95

View item

Authorized dealer

General Features:

  • 12" Type-S Series Car Subwoofer
  • Power Handling:
    • Peak: 1500 watts
    • RMS: 500 watts
  • Recommended power range: 150 - 500 watts RMS
  • Impedance: Dual 2 ohms
  • Kevlar treated pulp cone
  • Durable HAMR Santoprene surround
  • High strength steel frame
  • Progressive conex
  • 2.6" 5-Layer High-Temp Voice Coil
  • 64oz. Strontanium Ferrite magnet motor structure
  • 12" Protective 2-Piece Subwoofer Grille Available, sold separately:
  • Frequency response: 26-200 Hz
  • Resonance Frequency (Fs): 34Hz
  • Top-mount depth: 5-7/8"
  • Sensitivity: 86.4dB
  • CEA-2031 compliant
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

PROP 65 WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling. For more information, visit

Product history:

Alpine S-W12D2 thumbnail
(newest, current model)
Alpine SWS-12D2 thumbnail
(previous model, replaced by Alpine S-W12D2)
Alpine SWS-1223D thumbnail
(previous model, replaced by Alpine Type-S SWS-12D2)
Alpine SWS-1222D thumbnail
(previous model, replaced by Alpine SWS-1223D)
Subwoofer Specifications
Subwoofer Series
Type-S (Alpine)
Subwoofer Size
Peak Power Handling
1500 watts
RMS Power Handling
500 watts
Voice Coil(s)
Impedance (Per Voice Coil)
2 ohms
Voice Coil Diameter
Frequency Response
26 - 200 Hz
86.4 dB
Xmax (millimeters)
15 mm
Subwoofer Design
Round / Circle
Main Cone Color
Woofer Composition
Kevlar Reinforced Pulp Paper
Woofer Surround
Santoprene Rubber
Magnet Structure
Single Stacked
Subwoofer Grille
Re-Cone Kit Available
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Minimum Sealed Box Volume
0.65 cubic feet
Optimum Sealed Box Volume
0.75 cubic feet
Maximum Sealed Box Volume
1.0 cubic feet
Minimum Ported Box Volume
1.0 cubic feet
Optimum Ported Box Volume
1.25 cubic feet
Maximum Ported Box Volume
1.50 cubic feet
Top-Mount Depth
Cutout Diameter
Shallow Mount Installation
Electromechanical Parameters
Free-Air Resonance (Fs)
34 Hz
Equivalent Compliance (Vas)
44 liters
Total Speaker Q Value (Qts)
Electrical Q Value (Qes)
Electrical Resistance of Voice Coil (Re)
3.6 ohms
Mechanical Q Value (Qms)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Alpine Type-S SWS-12D2

Alpine Type-S SWS-12D2



Write a review

Overall rating distribution

5 star
4 star
3 star
2 star
1 star

By feature average rating



January 10, 2013


I bought two of the 12 inch type s subs and am happy with them. They arnt the loudest but are worth the money. Great for someone getting into the sub game


found this helpful.


July 23, 2013

Alpine Subs

Worked great in my application, always have had good experience with Alpine products. The dual voice coil configuration makes it easy to order what you need to run your subs at 2 ohms.


found this helpful.


August 17, 2014

Great sub and great price!

Alpine has never let me down. This subwoofer hits extremely hard. I have one powered by an alpine mrv-m500 wired at 4 ohms in a ported box. The amp is only at the normal output power setting and that's all I need. This sub is a great buy for anyone who wants the perfect amount of bass to not drown out the music completely. Don't get me wrong though, this sub is capable of doing that if you want it to.


found this helpful.


February 25, 2013


If u know me I like bass! I have 2 of these in the ground shaker 2 12 sqp
Box and it slams. I was surprised cause that's really nota big box. Imagine
A custom box! Other than that I have it hooked up to a brutis 1200 @ 2 ohms. Good subs.


found this helpful.


March 27, 2014


My boyfriend wanted these subs so i decided to buy them fir him hes happy with them


found this helpful.


September 2, 2013


This speaker was second choice in regards of finding one that had high temp voice coils. I hooked it up to class d autotek1500d and dropped ohms to 1. I broke it in over three weeks and then as soon as she started banging good, it blew. It had great sound but maybe sealed box and hot summer day banging didn't go well? Either way can't really be mad it was good just not good enough for my application. Vented boxes keep speakers cooler just don't have that tight low I like so if you like sealed set up then get something that can handle the heat!


found this helpful.


August 21, 2013

Best subs around for the price

Started with a 10" alpine type E that is now in my girlfriends toyota celica. Bought 2 of these for my car and they sound amazing no matter what style of music im listening to. I couldnt say enough good things about these subs. Extremely satisfied with all alpime products, especially the type S subs.


found this helpful.

bass head!!!

November 12, 2012

bass shaking, hard hitting, deep low traveling bass by far!!!!!

I had just replaced 4 10" orion cobalt subwoofers in a 5 cubic foot box ported at 45hertz. with a sws12d2 subwoofer in a 1.5 cubic foot L vented wedge box tuned at 35.1 hertz. this thing hits as hard as my old 4 orion 10" and hits as low as the 4 10". for the price of this sws you get more then your money's worth!!! this sub slams hard in my hatch back!!! I've been thinking bout getting a sws15d2. don't get me wrong the 12 is loud n hits low. but im a bass head!!!! to the fullest!!!


found this helpful.


August 10, 2013

It Alright

I have owned two of these both have broken on me. Thee first was my fault and the second was a factory issue but would not honor warrenty. They sounded awesome when they worked. I had only one hooked up at a time in a ported box with a alpine mrv500 amp.


found this helpful.


March 27, 2014

excellent budget sub

Great service from the guys at sonic electronix as always. Sub is one of the best bangs for the buck. It sounds great paired with my hifonics amp. I can't imagine how it would sound if I built a tuned box


found this helpful.


February 14, 2014

great sub for the price

The sub works great with my 1200 watt pioneer mono amp, and it thumps hard even when not using 100% of its potential. I would recommend a lower wattage amp, because my amp blows out the sub.


found this helpful.


January 19, 2015

great, pretty sub.

this subwoofer is great on my phoenix gold 300.1 at 1 ohm(makes 340 rms at 2 ohms) and it likes high 30 hz to 45hz. recommend to anyone who appreciates sq and a little bump to make your music come alive.


found this helpful.


January 16, 2015

Great subs

where to began.. i have 2 of theese wired in 2 ohms powered by a ZRX1800.1D in a ported box tuned at 35 and it rocks my trunk i have a 1977 chevy caprice so i want 2 more (trunk is big enuff) and the amp can handle 4(so why not if you wanna B herd for a block or 2.. two of these is all you need


found this helpful.


December 21, 2014

Lotta bass, little money

I ordered 2 of these subs for my senior project and boy, i was definitely not disappointed. I built a sealed box to the manufacturers specs and machined it out on a CNC router machine. Whoever said sealed subs don't hit hard definitely hasn't heard these baby's! You can feel the bass in your chest and there's great response with a sealed box with really tight sound. I wired each subs coils in series, to double impedance then parallel together to cut it in half to bring the final impedance to 2 ohms. Im using the hifonics 2000.1D amp tuned to run at 900w rms. These subs really bump for a great price, all the kids say they hear me coming up the school driveway! if you are looking for an ear piercing bass i would build a ported enclosure because im sure these things would perform great in that scenario too. But 2 of these subs in a sealed box tuned to max potential is perfect for what i wanted for daily driving, cant even see out the rearview! these things perform great in a sealed box and have been running cool, they definitely handle the power efficiently. Alpine all the way! i have been recommending the type s's and type r's to all my friends now, these are some of the crispest subs and the tightest bass ive ever heard. I cant speak to the durability because i've only had them for 2 weeks, but after driving for a while i stopped to check how they were doing and the cone wasnt even warm after bumping for hours at 900w between the 2 subs.


found this helpful.


August 20, 2015

best 12 for the price

I order this sub thinking it be OK till I git a better on but when I built the box for it and got it playing its really loud and clean sounding it sounds good in 1.70 cubic box with 4 in port that a foot long and mount the sub up side down works better btw, but I got told a lot that its loud


found this helpful.
Wiring Guide to Wire 1 Alpine Type-S SWS-12D2 Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Alpine Type-S SWS-12D2 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Alpine Type-S SWS-12D2 Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

Wiring Guide to Wire 4 Alpine Type-S SWS-12D2 Subwoofers

2 Channel Amp

4 Channel Amp


Best selling similar products

Planet Audio AC12D

• Peak Power: 1800W
• RMS Power: 900W
• Sensitivity: 88 dB



JBL Stage 1210

• 1000 Watts Max
• 250 Watts RMS
• Polypropylene Cone
• Rubber Surround
• Competitively Tuned
• Sensitivity: 91dB


Kicker CompC CWCD124 (44CWCD124)

• 300 Watts RMS
• 600 Watts Max
• Injection-Molded Polypropylene Cone
• Ribbed Polyurethane Surround with Yellow Stitching
• Stamped Steel Basket




• Power Range (RMS) 850-1000 Watts
• Woven Fiber Pressed Paper Cone
• Custom High Roll Foam Surround With Nylon Stitching
• Die Cast Aluminum Basket
• Dual Poly-Cotton Spiders



NVX VSW124v2 (VSW 124 v2)

• 600 Watts RMS / 1200 Watts Max • Dual 4-ohm Voice Coil • Non-Pressed Paper With Woven Carbon Fiber Top • High Excursion Foam Surround • Stamped Steel Basket • Single Nomex Spider



Searches Related to the Alpine SWS-12D2


Model Number:




Internal SKU:


Internal Product ID:


Item Added to Cart

1500W Peak 12" Type-S Series Dual 2-Ohm High Performance Subwoofer


Keep Shopping

Why SquareTrade?

  • The #1-Rated Protection Plan
  • 5-Day Service Guarantee & Free Shipping
  • Protection from Normal, Everyday Use
You have added a warranty
Add Warranty
3 years of protection

FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.


12" Subwoofer Small Sealed Enclosure

CARB Compliant, 3/4" MDF Sealed Enclosure Lined with Premium Carpeted Finish


Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.



Don't see the accessory you're looking for?
View all available accessories for the Alpine Type-S SWS-12D2.