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RE Audio SEXv2-12D4

750W 12" SE-X v2 Series Dual 4 ohm Subwoofer

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List price $499.99

You Save: $270.00 (54.00%)


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SEX Subwoofer Series

The SEX v2 SERIES is an improvement in every way over RE Audio's most popular and best selling subwoofer series. The SEX v2 SERIES offers increased power handling, excursion as well as higher efficiency over the original SEX series. The SEX v2 SERIES touts a totally new look with its completely redesigned motor and magnetic assembly.

Subwoofer Features:

  • 12" Dual 4 ohm SEX v2 Series Car Subwoofer
  • Power Handling:
    • RMS: 750 watts
  • Impedance: Dual 4 ohm
  • Dual composite 2-piece cone
  • Rubatek foam surround
  • FEA Optimized motor structure
  • Progressive spiders
  • Wrap around rubber gasket
  • Tork-Tite terminals
  • 3" 4-Layer voice coil
  • Double stacked magnets
  • Cast aluminum basket
  • One-way, Linear Excursion (Xmax): 20 mm
  • Efficiency (SPL): 86.9 dB
  • Mounting Depth: 6-1/2"
  • Also available in a Dual 2 ohm: RE Audio SEXv2-12D2
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Need the Perfect Subwoofer Enclosure?

Check out the RE Audio SEXv2-12D4 Subwoofer Enclosure Guide

Product History:

RE Audio SEXv2-12D4 thumbnail
(newest, current model)
RE Audio SEX12D4 thumbnail
(previous model, replaced by RE Audio SEXv2-12D4)

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
SEX v2 (RE Audio)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
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.
750 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.
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.
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".
86.9 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.
20 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.
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.
Dual Composite 2-Piece Cone
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.
Rubatek Foam
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Double Stacked
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.
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.

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
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.
0.75 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.
1.0 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.
1.5 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.
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.
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.
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.


Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


McAllen, TX


November 1, 2014

Own 2 of this boyz wire at 1 ohm and let me tell you this subs have some serious power. Second battery recommended.. cracked my windshield on the 2nd day! Also have 1500 rms re audio amp which is good. I don't over power them or under power them.. i would recommend this to anyone that's serious about bass. Remind you again have a good electrical power on your ride for this babies ;)

29 of 56 found this helpful

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san Antonio

great experience

June 9, 2015

I purchased the RE Audio sex12v2 , 2 @ that.... great price, & fantastic customer service. Let me tell u the sound excellent, i have a Rockford 1500.1 on them at 1ohm & they can handle all the power i throw at it.

Thanks sonic

1 of 1 found this helpful

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Great Neck, NY


May 19, 2014

Not a bad sub to have. It all depends on what you are going for. This sub has the tendency to be accurate at reproducing the lows you need, if you listen to rap/hip-hop a lot, then this is a good fit.

I would not overdrive these sub, or any sub for that matter. Give it between a 1/2 and 2/3 of the RMS power in a vented enclosure, you'll be happy all day.

25 of 49 found this helpful

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Philadelphia, PA

Great sounding subs!

June 22, 2015

I purchased a pair of 12 inches and these things sound amazing! They hit extremely hard. All pros no cons. Will def purchase again. Also great service from Sonic!

1 of 2 found this helpful

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sanford nc

great subs

May 11, 2015

I had 2 p3 rockfords and they blew so I bought the re audio sex 12d4. They where out of stock so they upgraded me to the v2 for free. These subs bang hard an I'm glad I bought them. Sonic electronix always deliver on time. If buy these subs you your goin to need to souND deaden your trunk.

4 of 8 found this helpful

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Ashland, OR

Great product great service

April 12, 2015

Love these subs they sound better than I could ask for. Very happy with the product and with the customer service!

5 of 10 found this helpful

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Taylor T

Jamestown ND

One of the best!

May 9, 2015

I have 2 of these in seperate vented enclosures powered by a Hifonics BRX 1516 at 1 ohm with 4 gauge wiring and they sound almost too good! If i had a bigger enclosure I'm sure they would be even better but like myself and others say when we hear these subs "They are so loud and yet sound so clean" Definitely worth the $ if you want a higher end audio system in your car. I use to have two L7's and they were loud but not near as accurate or clear as these babies get! I can play hard hitting hip-hop all day and these never skip a beat or get hot. RE Audio is quality stuff.

3 of 7 found this helpful

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Philadelphia, PA

Hard Hitting, Great Sound Quality

March 23, 2015

One word... Impressed! I must say these subs not only pack a punch but the sound quality was very impressive as well. I've owned many brands of subwoofers except RE Audio, and I'm very happy with the decision of purchasing these SEXv2's. You won't be dissapointed!

4 of 10 found this helpful

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Schenectady, NY

great sub

April 4, 2014

this sub had some super deep bass but it doesnt over power the rest of the music. durable subs clear sound. best subs i have ever owned or herd

23 of 52 found this helpful

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Orange county, ca

love it

December 31, 2013

I had 2 old school 12" RE SE subs in a sealed box and they slammed obviously and now have one of these in a ported box and it sounds awesome.

21 of 50 found this helpful

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Accessory Tools and Products

Accessories added

12" SingleHatchback Style Small Sealed Subwoofer Enclosure

CARB Compliant, 3/4" MDF Dual Hatchback Style Sealed Enclosure w/ Premium Carpeted Finish

Your Price $42.95

12" Subwoofer Small Sealed Enclosure

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

Your Price $44.95

12" Vented Subwoofer Enclosure

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

Your Price $65.95

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

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

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 $159.99

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

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

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

Car Stereo and Speaker Installation Tool Kit

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

Your Price $16.99

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

1mm All Purpose Solder

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

Your Price $8.99

Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $19.95

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

1 RE Audio SEXv2-12D4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 RE Audio SEXv2-12D4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 RE Audio SEXv2-12D4 Subwoofers

Mono Amp

4 Channel Amp

4 RE Audio SEXv2-12D4 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 2 questions and 2 answers
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Why did you choose this?
Sonic Electronix Store
am going to be running 4 of these in a grand am with 2 massive audio amplifiers
Kimberly S on Jan 17, 2015
RE Audio is one of the best brands for the money I've seen in a while. Long lasting, sharp sound, quality guaranteed. Love this company.
Anthony C on Oct 15, 2014
Where are the complete set of T/S parameters for these... I can't believe that the neither the owner's manual nor the PDF for these woofers does not have the Vas, Qts, Qes, Qms, Sd, Fs, -OR- the Re; How do they expect someone to design a custom-tuned enclosure without those parameters?
A shopper on Feb 14, 2015
· Add Answer · I Have This Question Too (2)

Product Summary


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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 SEXv2-12D4

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