Alpine SWR-T12

600W 12" Type-R Shallow Mount Single 4 ohm Subwoofer

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List price $549.99

$299.95

with warranty

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Arrives by Thursday, Nov. 6 to zip 07095

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Product Features:

  • 12" Single 4 Ohm Type-R Shallow-Mount Subwoofer
  • Power Handling:
    • Peak: 1800 watts
    • RMS: 300-600 watts
  • Impedance: 4 Ohms
  • Aluminum woofer cone
  • Injection Molded Santoprene rubber surround
  • High-Amplitude Multi-Roll (HAMR) suspension results in the highest X-max and SPL output in its category
  • Thin design allows for installation in compact areas
  • FEA-Optimization allows for maximum linearity, greatly reduces distortion, and improves power handling and output
  • Vented voice coil heat sink, and airflow management system keeps subwoofer cool, while reducing distortion
  • 4" diameter single layer edge-wound ribbon wire voice coil
  • Unique spider and pass-through gap design, provide over 50mm of peak-to-peak excursion
  • Neodymium 35SH magnet structure
  • Frequency response: 26-200 Hz
  • Sensitivity: 84dB
  • 1-year Sonic Electronix 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.

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Type-R (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.
1200 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.
600 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.
Single
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.
4 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).
26 - 200 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".
84 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.
15 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.
Aluminum
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.
0.40 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.
0.75 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.
1.0 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.
1.5 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.
3-1/2"
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.
10-15/16"
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.

Yes

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
83%
4 Star
6%
3 Star
11%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.4
Value
4.3
Features
4.7
Design
4.9
Usability
4.9
Obama

VA

Overall
Durability
Value
Features
Design
Usability
Great

June 20, 2011

Installed this in a custom sealed box in my 350z and it sounds great. I had the old, thicker 12" Type R and this sounds just as amazing. I even installed this in the worst location (the compartment behind the driver's side seat in the 350z) and it still sounds awesome. Can't even beat the price anywhere else.

4 of 4 found this helpful

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08Tundra

Zebulon, NC

Overall
Durability
Value
Features
Design
Usability
Great shallow sub!!

November 17, 2010

I bought this sub to go in my 08 Tundra. When I started my audio build I initially went with the Rockford P3 10' shallow sub, then upgraded to the P3 12', and finally to this sub. This sound undoubtibly sounds better that both of the previous subs, it will really handle the lows alot better than I expected. And right now I only have and MRP 500 pushing it. I am not even sure I will upgrade the amp it just sounds and pounds so good now. It is a little $ but you get what you pay for, and out of all the shallow subs I have heard this one is the cleanest, tightest, most accurate I have heard. Semper Fi

4 of 4 found this helpful

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Jeremy

Tarentum, PA

Overall
Durability
Value
Features
Design
Usability
Great Sub

June 7, 2011

I bought this sub 6 months ago and put it behind the seat in my Dodge Ram 1500 standard cab truck and it pounds so hard. I would definitely recommend it to anyone who's looking to get a lot of sound and power out of such a thin sub.

2 of 2 found this helpful

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Brendan

Austin, TX

Overall
Durability
Value
Features
Design
Usability
Blows easy

August 6, 2014

I bought this subwoofer a year ago and put it in my truck with the alpine pdx-m6. Both units run at 600w rms and I somehow blew the sub the same night. Granted my wiring might have been the problem. I then upgraded some wires and got another one. (No warranty) this then sounded great and was honestly a wonderful sub! I had it in a down firing box under my seat and if you stood outside of the truck you couldn't hear any obnoxious bass. But inside the truck everything vibrated crazy! But then it blew randomly one night at sonic, without being turned up. These shallow mount subwoofers aren't able to take the abuse as a regular subwoofer and although it sounds good the reliability isn't there.

0 of 0 found this helpful

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Aldog

Valencia, CA

Overall
Durability
Value
Features
Design
Usability
Good sub

July 24, 2014

I had this sub installed in a 06 f150 supercrew under my back seat. This is a good sub and it sounded great. However for the price(currently 309.00) and the single voice coil config, I would recommend something else. I currently own a 2011 supercrew f150 and for the price of 1 of these subs, I was able to purchase 2 skar audio vd-10(10") subwoofers and a box for under the back seat. I must say these 2 dvc 10" subs have more wiring options than the Alpine. They also blow the single 12" away. Using an online port calculator I ported my current enclosure to around 35 hz and they sound incredible. They shake my truck like the Alpine never could. The point I am trying to make is that while Alpine has a great product, I believe that for the price, there are a lot more options out there. All it take is some patience and a little research.

0 of 0 found this helpful

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Jr

Van Nuys,CA

Overall
Durability
Value
Features
Design
Usability
Great subwoofer

July 21, 2014

This subwoofer has amazing bass for a shallow mount plus it's has a well built frame.

0 of 0 found this helpful

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Hardy

Australia

Overall
Durability
Value
Features
Design
Usability
Nice lil sub

May 23, 2013

Very happy with this product. Good for small spaces and surprisingly loud. Could not really fault this product. Perfect for what I wanted.

0 of 0 found this helpful

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Alvin

Valencia, Ca

Overall
Durability
Value
Features
Design
Usability
Good Sub!!

August 30, 2012

I have an f 150 supercrew. I have the alpine in an enclosed box underneath the seat with an alpine m500 powering it. The speaker hits hard. It rattles my rear view mirror. The range is pretty good, but it doesn't hit as low as my old 12" kicker cvx. However it's compact design eliminates a big box on my back seat, and I love that. Overall, I love this sub. A definite bonus addition to replace big bulky boxes sliding around the back seat.

0 of 0 found this helpful

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Mac

Bellevue, WA

Overall
Durability
Value
Features
Design
Usability
Rocks!

December 14, 2011

It's the slim design of course - fits right under the seat in it's enclosure in my pickup. But I also wanted a sub that provided clear reproduction without being boomy. This Alpine meets its traditional fame for doing just that. I listen to a broad range of genres and this sub is perfect for everything from classical to prog rock.

0 of 0 found this helpful

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Heather

Canada

Overall
Durability
Value
Features
Design
Usability
good quality

October 6, 2011

Would recommend, good sound solid product.

0 of 0 found this helpful

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Kyle

Kansas City, MO

Overall
Durability
Value
Features
Design
Usability
Not bad for a shallow sub

September 14, 2011

Very well built thin/shallow sub. If your restricted to needing a shallow sub this is one of the best out there. Very clean in a sealed enclosure for one 12" at roughly .72 ft3. Not as much output as a regular sub so keep that in mind. Worth the money if you have to go this route.

0 of 0 found this helpful

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Col

Australia

Overall
Durability
Value
Features
Design
Usability
ALPINE SWR-T12

August 16, 2011

The slimline Subwoofer has a nice sleek design and it sounds great. I also liked the service that sonic Electronics provided to me here in Australia, very reasonable shipping cost for an item this size. Thank you. CH

0 of 0 found this helpful

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Damien

Canada

Overall
Durability
Value
Features
Design
Usability
Very clean bass

June 6, 2011

I am very pleased with the performance of this sub. I was skeptical about how good it would sound compared to a regular 12" and it totally exceeded my expectations. I am running it with an '10 Apline PDX M6. I built the enclosure to manufacturers volume recommendations and it's perfect. I had to custom build a funky shaped box to fit behind the back seats of my '09 Tacoma double cab. I went to a few car audio shows and have by far the highest SPL Tacoma in Edmonton with an OEM style system (no huge box in the cab) As long as your enclosure volume is correct you will love this sub.

0 of 0 found this helpful

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zz

los angeles, ca

Overall
Durability
Value
Features
Design
Usability
Solid Sub

February 27, 2011

Bought this sub to go in my truck due to lack of space. I have had Type R 12"s before and they sounded great. Props to Alpine for getting it right on the shallow mount. I have heard several shallows, and none compare. Just one in a small box hits pretty hard, it won't blow your mind but its a good sub. I would not pay what other places charge for this woofer, some up to 500, but for what its listed for here its a great deal when space is an issue. I will say the box and power are very important. I had it in a .4 cubic foot box and it sounded terrible, switched to a .75 box and it made a world of difference. Give it at least 500 watts rms too, trust me it needs it. Also, make sure to get a grill, although its constructed very well the cone will take dents very easily.

0 of 0 found this helpful

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MR.Noitall

Bakersfield,CA

Overall
Durability
Value
Features
Design
Usability
Nothing else compares

December 24, 2010

WOW!! I must say that alpine did it again! This shallow mount sub is by far the best i have heard! If i didnt no that they were shallows, i could swear the sound like reg 12s. Dont settle for anything else!

0 of 0 found this helpful

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Love music

Denver Colorado

Overall
Durability
Value
Features
Design
Usability
Sounds great

January 18, 2013

I had 3 of these installed in my dodge 1500. The sound is unbelievable. I have a Rockford Amp pushing them all in a series with a 1 ohm load Would defiantly recommend.

0 of 1 found this helpful

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Marcus

Covington, GA

Overall
Durability
Value
Features
Design
Usability
Love it

August 12, 2011

Love this woofer.

0 of 2 found this helpful

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James C.

Corpus Christi, Tx

Overall
Durability
Value
Features
Design
Usability
Great Sound!! Not Long Lived!!

April 16, 2011

I got one of these T-12 for my 07 chevy crew cab. Built a custom ported box too Alpine specs to fit behind the back seat. I'm running it with a Kicker ZX1000.1 (4ohms 500watts rms). I have had it for less then six months and it is dead "internal meltdown"!! It had awesome sound, hard hitter, feel it in your chest!!! When it went i was not even playing it loud. This is the only sub i have ever blown. I've had Kicker & JL. Hope this helps somebody in the future.

0 of 2 found this helpful

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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

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

25 ft. of Streetwires 12 Gauge Speaker Cable

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

Your Price $44.95

40 Square Feet of Sound Dampening Material

Thicker than the competition, complete sound damping kit for entire vehicle! Use for trunk, doors, roof and floor.

Your Price $119.99

Dynamat Sound Dampening Bulk Kit

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

Your Price $159.95

Stinger Sound Dampening Bulk Kit

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

Your Price $99.99

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 $1.99

Car Stereo and Speaker Installation Tool Kit

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

Your Price $14.99

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

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 Alpine SWR-T12 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Alpine SWR-T12 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 Alpine SWR-T12 Subwoofers

4 Channel Amp

4 Alpine SWR-T12 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

SWR-T12

UPC

793276601513

Weight

15.50lbs

Internal SKU

swrt12

Internal Product ID

27183

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 SWR-T12