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RE Audio SRX12D2

300W 12" SRX Series Dual 2 ohm Subwoofer

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This item has been discontinued

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Monster Performance

Get big bass with the RE Audio SRX series of car subwoofers.! Easily expect monster performance and deep bass from these quality drivers. The SRX series has twice the power handling and improved audio output over the RE Audio REX series. The striking cosmetics complete the look of the subwoofer, while ensuring that high quality sound is produced. Once mounted, the kraft pulp cone and rubber surround will be visible for all to see. Underneath the cone is a 4-layer copper voice coil, a FEA optimized motor structure, double stacked magnets that all work together to keep the subwoofer linear and sounding great. The RMS of the SRX series is an affordable 300 watts and is perfect for those just starting their car audio system or the long time car audio enthusiast. Like all of the RE Audio subwoofers, they are capable of accepting much more power then the recommended RMS. For excellent performance for a great price, check out the RE Audio SRX car subwoofers

Subwoofer Features:
  • 12" Dual 2 ohm SRX Series Subwoofer
  • Power Handling:
    • RMS: 300 watts
  • Impedance: Dual 2 ohm
  • Kraft pulp woofer cone
  • Rubber surround
  • Pressed steel basket
  • FEA optimized motor structure
  • Linear spiders
  • Foam gasket
  • 4-Layer copper voice coil
  • Double stacked magnets
  • Also available in dual 4 ohm: RE Audio SRX12D4
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
SRX 10" T/S Parameters:
  • Electrical Q Value (Qes): 0.41
  • Mechanical Q Value (Qms): 4.99
  • Total Speaker Q Value (Qts): 0.38
  • Free Air Resonance (Fs): 23.6 Hz
  • Equivalent Compliance (Vas): 85 liters
  • One-Way, Linear Excursion (Xmax): 18 mm
  • Efficiency (SPL 1W/1m): 86.2 dB SPL
  • Effective Piston Area (Sd): 480 cm^2
  • DC Resistance (Re): 1.8 ohm
  • Nominal Impedance (Znom): Dual 2 ohm
  • Thermal Power Handling (Pe): 300 W
  • Force Factor (Bl): 14.35

For more information on the Thiele and Small Parameters, visit our T/S Parameters Article

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
SRX (RE Audio)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
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.
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.
18 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.
Kraft Pulp
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.
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.
No
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.
0.5 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.
1.25 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.
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.
6-1/2"
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.
11"
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
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
93%
4 Star
7%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.9
Value
4.9
Features
4.9
Design
4.9
Usability
5.0
franco

Philippines

Overall
Durability
Value
Features
Design
Usability
srx

October 14, 2010

I like this sub...I have one of this put it on 2cft enclosure running 1200W RMS amp @ 1ohm! The meter is 138.3db, this sub is amazing.

2 of 2 found this helpful

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San Nicolas

Lakewood, WA

Overall
Durability
Value
Features
Design
Usability
Great price for quality loud subs!!!

February 26, 2014

I've had this for about a month now 2 of these installed in a ported box tuned to 33hertz and lemme say they sound amazing!! Sound quality is superb and it hits the lows pretty hard. Plays deep. Have yet to see the full potential but so far I am blown by what these 300watts rms subs can do. Flexing everything. Even my windshield. I owned rockford a before this and it blows them outta the water. Highly recommend this sub for price quality and sound. Will not disappoint you granted you know what you're doing. Match them up to the right amp in the right enclosure and you're good to go!

0 of 0 found this helpful

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Luke

Canada

Overall
Durability
Value
Features
Design
Usability
ReAudio SRX12D2 update

January 30, 2014

Okay so I've got 2 of these 12"SRX12D2 subs in a custom built ported box, 3.3cu ft, tuned to about 31.5Hz and it is insane, they are powered by a Kenwood 990Watt RMS mono amp and they flex the roof in my Chevy Colorado 4door truck, They are loud and hit LOW! Was getting a bit rattling sound on the one sub, sounded like the speaker wire was hitting off the back side of the cone but after turning the sub out to 0 on the deck it seemed to go away, gonna keep an eye on it but other then that everything's great, so far so good, it's currently winter, and we've been getting -30c weather where I'm from so I don't crank them up at that temp but they are still working great, great price from this website, I am pleased.

0 of 0 found this helpful

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Hddogg

Canada

Overall
Durability
Value
Features
Design
Usability
RE Audio SRX12D2 subwoofers

December 8, 2013

I ordered 2 RE Audio SRX12D2 (12" Dual 2Ohm voice coil) the website said next day delivery but took over a week. They are temporarily in a sealed box but my friend is building a custom ported box to spec of the sub, 3.3cu ft, and tuned to 30Hz. I've just been breaking in the subs for 3 weeks now and they sound OK in the sealed box. I am running them into a 2Ohm load and am powering them with a Kenwood amp 900watt RMS@2Ohm. Will try and update after they're in new box. My buddy swears by RE Audio and I've seen what they can do and I got a lot better of a deal here then he could get from his supplier! Would def recommend RE Audio. So far so good... Also they're in a Chevy Colorado 4 door truck.

0 of 0 found this helpful

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Jeremy

Ohio

Overall
Durability
Value
Features
Design
Usability
2 yr update

December 1, 2013

I reviewed these about 2 months after I got them, have had them about 2 yrs now and they are still going stong! Best subs I've ever had. The JL's I had were replaced under warranty several times...... I have now built a ported box to RE's specs and run by an ED Nine.1 @ 2ohms - about 1kw, and they love it!!! I recommend them to everyone that is looking for subs.

0 of 0 found this helpful

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chris

Kansas City, MO

Overall
Durability
Value
Features
Design
Usability
woah..

October 19, 2013

This sub is as good as you can get when it comes to quality, having it powered perfectly to 300rms with a small ported box is how i have the sub in a saturn ion, and let me tell you its worth the money for quality assurance.

0 of 0 found this helpful

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andy

palm beach gardens, FL

Overall
Durability
Value
Features
Design
Usability
Absolutely perfect for my setup.

September 27, 2013

Wired to a 5-channel amp with 250 RMS watts going to this sub, enclosed in a sealed box, this subwoofer was the perfect choice. I would highly recommend it to anyone with the same or similar setup as myself. Do your research. Research, research, research! And then buy.

0 of 0 found this helpful

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JVett

Tulare, CA

Overall
Durability
Value
Features
Design
Usability
Nice subs!

September 1, 2013

I ran two of these in a 4th order blowing through the rear deck of my Camry and they were pretty darn impressive. Great starter subs but if you are looking for some nasty bass you would definitely want to try a higher end RE model.

0 of 0 found this helpful

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John

New York, New York

Overall
Durability
Value
Features
Design
Usability
Incredible

July 19, 2013

Currently running just one in a 1/4 wave transmission line tuned to 32hz, on 300-400 rms. It has exceeded my expectations in every possible aspect. Just one has my seats/doors/roof resonating visibly. I can't speak for people who will use a sealed or ported box, but for t-lines I'd recommend it without a second thought. Curious to get it metered, It makes my ears uncomfortable when I'm pushing it hard.

0 of 0 found this helpful

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Jeremy

Ohio

Overall
Durability
Value
Features
Design
Usability
Awesome

November 29, 2011

These could be the best sub for the money -EVER-!!! I have not found anything that they don't absolutely excel at. They sound good at low volumes and when you decide to turn it up, they just keep beating harder and harder!!! Have recommended them to several people.

0 of 0 found this helpful

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Andrew

Springville, UT

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Durability
Value
Features
Design
Usability
GREAT 12's

August 1, 2011

Does exactly what it is meant to do. A slight delay in response time is noticed, not horrible, it's just more than the original set up. As far as durablility goes, it's only been about 6 months since the installation, so i can only asssume it will last some time.

0 of 0 found this helpful

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Matthew

Memphis, MO

Overall
Durability
Value
Features
Design
Usability
oh heeeelllllsss ya

June 25, 2011

i just got these hooked up today and kept running at 1/4 of radios output (sonycdx-gt740ui) and damn all i can say is these babies hit hard running a hifonics hfi1000.1d at 2ohms putting out 750watts over the rms by 75 watts and phenominal sound a definate must have if you want awsome bass at an affordable family price.

0 of 0 found this helpful

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rob

Indianapolis, IN

Overall
Durability
Value
Features
Design
Usability
RE Audio SRX12D2

June 6, 2011

I have 2 of these bad boys on a Rockford T-1000bdcp, Stinger power cell with monster speaker cable that I order from Sonic. It is the sound that I was missing the whole time. This sub puts out clean deep loud bass. You can not beat the price either. Thanks Sonic

0 of 0 found this helpful

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ssmobile

Olean, NY

Overall
Durability
Value
Features
Design
Usability
Good Bass

February 5, 2011

they r underrated im pushing 1200 @ 1ohm to 2 12s n there great there in a 1.65 cu ft box ported to 37 htz

0 of 0 found this helpful

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Gary

Beaver, WA

Overall
Durability
Value
Features
Design
Usability
Amazing subwoofer!

January 1, 2011

I had two of these subs running on 250 watts each. My system was hitting around 135db. You CANNOT find a better sub for the same amount of money.

0 of 0 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

25 ft. of Streetwires 12 Gauge Speaker Cable

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

Your Price $44.95

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

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 RE Audio SRX12D2 Subwoofer

Mono Amp

Mono Amp - Option 1

2 Channel Amp - Bridged

2 RE Audio SRX12D2 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 RE Audio SRX12D2 Subwoofers

Mono Amp

Mono Amp - Option 1

4 Channel Amp

4 RE Audio SRX12D2 Subwoofers

2 Channel Amp

4 Channel Amp

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RE Audio SRX12D4

• RMS Power: 450W
• Kraft Pulp Cone
• Rubber Surround
• FEA Optimized Motor Structure
• 4-Layer Voice Coil
• Double Stacked Magnet

Your Price $119.99

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Product Summary

Manufacturer

Model Number

SRX12D2

UPC

611892991125

Weight

19.00lbs

Internal SKU

srx12d2

Internal Product ID

27303

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: RE Audio SRX12D2

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