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Alpine SWS-1223D

12" Dual 2 ohm Type-S Series Car Subwoofer

Discontinued
|

Good news and a little bad...

This item has been discontinued

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

sws12d2 thumbnail

Alpine SWS-12D2

OUR PRICE: $94.99

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  • 12" Dual 2 ohm Type-S Series Subwoofer
  • Power Handling:
    • Peak: 900 watts
    • RMS: 300 watts
  • Impedance: Dual 2 ohm
  • Pulp/fiber cone reinforced with Kevlar
  • Santoprene rubber surround
  • Progressive NOMEX Spider
  • Reinforced layer spider integration
  • Compound radius curve motor structure
  • Co-molded Spider/voice coil coupling ring
  • High strength custom steel frame with perimeter venting
  • Frequency response: 27-700 Hz
  • Sensitivity: 86 dB
  • Top-mount depth: 5"
  • 1-year SonicElectronix.com warranty

Alpine products are warranted solely by Sonic Electronix, Inc. under the same period and terms as the original Alpine warranty. Sonic Electronix is not an Authorized Alpine Dealer and Alpine requires all merchandise purchased by Sonic Electronix customers to be returned solely to Sonic Electronix. Alpine products are also covered by our Standard Return Policy for returns on exchanges or refunds within 30 days from the date of purchase.

Product History:

Alpine SWS-12D2 thumbnail
(newest, current model)
Alpine SWS-1223D thumbnail
(previous model, replaced by Alpine SWS-12D2)
Alpine SWS-1222D thumbnail
(previous model, replaced by Alpine SWS-1223D)

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Type-S (Alpine)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
900 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
300 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Dual
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
2 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
27 - 700 Hz
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
86 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
12.8 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Black
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Glass Fiber and Pulp/Kevlar
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Santoprene Rubber
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
Optional (Accessory required and sold separately)
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.
No

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Sealed
Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
.85 cubic feet
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.5 cubic feet
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.25 cubic feet
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
2.0 cubic feet
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
5-1/16"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
10-11/16"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 10.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
64%
4 Star
36%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.8
Value
4.6
Features
4.6
Design
4.8
Usability
4.9

Walter

Omaha, NE

Overall
Durability
Value
Features
Design
Usability

Good SQ and SPL

July 29, 2013

I usually stay away from alpine because just like JL audio they're way over priced and just like JL audio they cant hold up to their claim vs cost and will blow up quick!

0 of 0 found this helpful

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L. Suga

Jacksonville, FL

Overall
Durability
Value
Features
Design
Usability

Capable shallow mount sub

July 6, 2013

I have been a fan of Alpine head units and speakers for over a decade, although this is my first Alpine sub. I mounted it in a 1.0 cf box (recommended) and it hits hard and tight. You don't get the deep lows you would with a sub with a bigger magnet or more play but it works well for under the back seat of a crew cab truck. Not the sub you need if you are looking for window cracking bass but it enhances all types of music and will still set off car alarms. I am pleased with my purchase and will continue to purchase quality Alpine gear.

0 of 0 found this helpful

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Matt

Topeka, KS

Overall
Durability
Value
Features
Design
Usability

great

January 5, 2013

Love these subs got them pretty cheep on a Christmas clearance and hooked them up to a re audio 1000 watt amp and they sound amazing get them while you still can only had them for a couple weeks tho so cant say on the durability.

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juan

La Joya, TX

Overall
Durability
Value
Features
Design
Usability

Nice

February 23, 2012

Just recieved mine today hooked em up to a kicker 400 watt amp which pounds the hell out of em. Really good sound. Crystal clear bass.

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Josh

Canada

Overall
Durability
Value
Features
Design
Usability

great subs

January 30, 2012

I have two of these subs and they pound hard! Mine arent even being powered by the proper amp and they pound very hard cant wait until i get a proper mono amp. I would recommend these subs. Alpine is an extremely good brand. Very good quality.

0 of 0 found this helpful

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DREWKANG34

milledgeville ga

Overall
Durability
Value
Features
Design
Usability

Alpine Rules Only

August 29, 2011

I brought 4 and put them in a sealed box, sounds good real low bass. If you are looking for good woofers look no more. Alpine is top of the line and have been making good car audio since N.W.A and before! So who you with.

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jordan

potosi, MO

Overall
Durability
Value
Features
Design
Usability

last long!

April 5, 2011

I've had this same sub going strong for a good 2 years now it was in my car for a year and now its in my dads truck in a 2.0 cubic foot ported box tuned to 34 hz and it hits pretty hard and sounds amazing in my dads truck....i myself have the alpine type R 12 in a 2.3 cubic foot ported box tuned to 32hz and i love it! it's been living for a year now lol.....if you're looking for a good sq/spl sub that will last long either of these subs would be a good choice cuz you can't go wrong with /////ALPINE.......and i ALWAYS let my alpine subs break in for about a month or so before i start pounding them real real hard everyday so they will live longer and sound better down the road

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jimi

DANSVILLE

Overall
Durability
Value
Features
Design
Usability

Alpine SWS-1223D

January 3, 2011

Once broke in sounds like you want it to plenty of boom

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Vladimir

Jamaica, NY

Overall
Durability
Value
Features
Design
Usability

Great price!!! Great quality!!!

November 15, 2010

Very good subs I have 2 of em in my car. it is powerful and for a very cheap price + it is Alpine! I suggest everyone this great product!!

0 of 0 found this helpful

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Reggie

Bird-In-Hand, PA

Overall
Durability
Value
Features
Design
Usability

Alpine sws-1223D

June 1, 2010

These Alpine SWS-1223D Type S (series) Subwoofers are a tremendously great buy. They offer the great lower frequencies that we all look for down to 27hz without a struggle and distortion. They can handle a great Mid Range bass, it's very punchy, tight and accurate. The transition from mids to high an low to high is amazing. I have them vented with the box at 3.40 cubic feet. These were the missing link in my car audio system. The greatest part is that they are also shallow mount, so you can pretty much fit them in any car. They will get the job done as long as you break them in easy and you have amp that powers them but doesn't clip or have a lot of distortion. Looking down the road I don't regret buying these, they will not let you down.

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Brett

Visalia, CA

Overall
Durability
Value
Features
Design
Usability

Pretty good.

February 15, 2010

Ive had this sub a couple days and it has great sq! The lows come out pretty good for me and its in a small sealed box. I haven't gotten too much spl out of it but its still breaking in.

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Chad

pikeville ky

Overall
Durability
Value
Features
Design
Usability

Awesome sub, awesome price

May 10, 2009

this sub sounds amazing, and is super cheap through this dealer, however i would recommend a truck box for this sub, it is a very shallow sub and a big box will destroy the sound, i will never own another sub than alpine

0 of 0 found this helpful

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vince

Schaumburg, IL

Overall
Durability
Value
Features
Design
Usability

Dual Type S

July 11, 2008

i have 2 of these in my 1992 ford explorer and they hit very clearly and very hard......with 2 of these things its makes my vision vibrate, these are very good subs as long as you power them correctly......i would give these subs 4 staRS ****

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Bryce

Las Vegas, NV

Overall
Durability
Value
Features
Design
Usability

Great sub, even better price

July 10, 2008

I was looking for some decent power/sound for my Blazer. I am running this sub through a Power Acoustik 1200 Gothic series amp and it sounds amazing. I considered going with a different, higher-powered sub but decided against it and am happy with the decision. The sub had plenty of power and handles any style of music, and not to mention it looks clean with the kevlar cone. It complements my Apline CDA-9884 head unit (which I also recommend) and alpine speakers perfect. Apline definitely puts out a quality product and Sonic Electronicx has the prices that can't be beat.

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Accessory Tools and Products

Accessories added

Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure

CARB Compliant, 5/8" MDF Shallow Sub Enclosure Lined with Polyfil.

Your Price $34.99

Single 12" Sealed MDF Subwoofer Enclosure

12-inch Sealed Car Sub Box Made with 3/4" MDF and lined w/ Polyfil.

Your Price $34.99

Single 12" Ported Enclosure Custom Black Baffle

Gold Binding post terminals and a high quality 5/8" MDF construction.

Your Price $59.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $44.95

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $59.99

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $109.95

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $69.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $6.99

Spring Post Terminal Cup

Makes adding a spring post terminal to an enclosure simple! Banana clip ready!

Your Price $3.99

40" x 15 Ft Piece of Premium Un-Backed Automotive Trim Carpet

Durable design for long life-span, available in many colors and shades.

Your Price $39.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $3.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $12.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $79.99

4 Ft of 1/4" Thick Black Heat Shrink Tubing

Provides abrasion resistance and added protection for your cables.

Your Price $3.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

12" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $4.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

AutoSound 2000 CD-101

Low frequency test CD

Your Price $11.99

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 Alpine SWS-1223D Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

2 Alpine SWS-1223D Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 Alpine SWS-1223D Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

4 Alpine SWS-1223D Subwoofers

2 Channel Amp

4 Channel Amp

Product Summary

Manufacturer

Model Number

SWS-1223D

UPC

793276620941

Weight

17.00lbs

Internal SKU

sws1223d

Internal Product ID

9332

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Alpine SWS-1223D