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RE Audio SEX12D4

600W 12" SE-X Series Dual 4 ohm Subwoofer

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List price $499.99

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$190.85

with warranty

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RE Audio SEX Subwoofers

RE Audio’s SEX Line of subwoofers redefines high performance and value. These subwoofers are placed in the middle of RE Audio’s full line-up, and can handle high power output around 600 watts RMS! These SEX Subwoofers are the perfect addition to any trunk!

These impressive subwoofers are built into a cast aluminum basket, and their triple stacked magnet drivers work off of a 3” 4-layer aluminum voice coil. This allows for quick bass response, and clearly outputs for deep bass in the lower frequency range. With an FEA optimized motor structure, the SEX subwoofer lineup maintains tight bass response and allows the subwoofer full control over all types of music.

Each one of these RE Audio SEX Subwoofer can handle 600 watts RMS of continuous power, no matter the size! These competitively priced subwoofers are an excellent complement to any audio system, and will provide you with that clean, hard hitting bass you’re looking for.

Subwoofer Features:
  • 12" Dual 4 ohm SEX Series Car Subwoofer
  • Power Handling:
    • RMS: 600 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
  • Triple stacked magnets
  • Also available in a Dual 2 ohm: RE Audio SEX12D2
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
SEX 12" T/S Parameters:
  • Electrical Q Value (Qes): 0.49
  • Mechanical Q Value (Qms): 4.5
  • Total Speaker Q Value (Qts): 0.44
  • Free Air Resonance (Fs): 25.1 Hz
  • Equivalent Compliance (Vas): 72.9 liters
  • One-Way, Linear Excursion (Xmax): 18 mm
  • Efficiency (SPL 1W/1m): 86.1 dB SPL
  • Effective Piston Area (Sd): 480 cm2
  • DC Resistance (Re): 2.8 ohm
  • Nominal Impedance (Znom): Dual 4 ohm
  • Thermal Power Handling (Pe): 600 W
  • Force Factor (Bl): 17.7

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

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 (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.
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.
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.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
3"
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".
86.1 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.
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.
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.
Triple 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.
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.
0.75 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.
1.0 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
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.
7"
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.
11-1/4"
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.
25.1 Hz
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.
72.9 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.
0.44
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.
0.49
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.
2.8 ohms
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.
4.5
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.
51.22

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
85%
4 Star
11%
3 Star
3%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.6
Value
4.8
Features
4.8
Design
4.9
Usability
4.9
Owen

Santa Clarita, CA

Overall
Durability
Value
Features
Design
Usability
One of the BEST Subs I’ve Ever Heard

September 7, 2010

The RE Audio SEX12D4 is one of the best sounding subwoofers I have ever heard. Seriously, this sub is incredible. At first I was a little skeptical about it. I had heard really good reviews about the sub, but I couldn’t get over the low price. I guess this subwoofer is in the same class as the Alpine Type-R, Kicker CVX, Rockford Fosgate P3, Pioneer Champion Pro, MTX Thunder 8500, etc… BUT I think it sound SO much better! The RE Audio SEX woofer plays LOUD. Right now I have it in a vented enclosure tuned at approximately 32 Hz and it is hands down the best sounding subwoofer I have had in my car. No matter what type of music I am listening to, it sounds great. When I’m testing my system with some Eagles – Hotel California (live version of course), the bass is the perfect amount to compliment the speakers. Not too overbearing, but just enough punch. When I put on some Hip Hop, the bass notes hit deep and I can feel the bass. This sub will sound great with all genres of music.

It has some serious excursion too. I put on the Bass Mekanik – Sonic Overload CD and really tested the bass. I was really impressed. The sub was flying all over the place! Sounded much better than the several subwoofers that have been in the car before it. Don’t want to say specifically which subs it sounded better than (hint: read above), but this is definitely sounded better, and not just for SPL. I have found that the RE Audio SEX 12” sub is great for SQ as well. Currently, I have it hooked up to a Kicker 750.1 amp that stated 925 watts RMS on the birth sheet. So even if the amp is just giving the sub 750 watts RMS, this sub is still running smooth. Even though they state 600 RMS, just bring the gains down and you can hook it up to amp that put out a lot more power. Probably the safest bet to hook it up to a perfectly matched 600-watt car amplifier.

Overall, I am 100% impressed and converted to RE Audio subs. For the price that Sonic Electronix has, you can’t go wrong. This is bass that I would expect to spend $400-500. Plus, I love the look of the cone. Just a simple black inverted dome with the RE logo. Simple and cool.

36 of 54 found this helpful

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Michael

Tulsa, OK

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Durability
Value
Features
Design
Usability
Awesome sub!

March 1, 2014

I replaced 2 Kicker comp vr 12's in a ported box with one of these in a sealed box. This one blows the kickers away! Sound quality is so much better, and bass is just as good.

20 of 30 found this helpful

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Josh

Iowa

Overall
Durability
Value
Features
Design
Usability
Amazing subwoofer

June 10, 2011

This sub is great, I own two of them in a ported box 1.75cu for each sub. I have them running on a Hifonics Brutus 1200.1 @ 1 ohm. These sound great in my suburban they hit the lows very well and get loud. Not to mention the sound quality is amazing. They are very power hungry I wish I would have gone with the 1700.1 amp. Ive pounded these subs very hard and clipped them for long periods of time to see what they can handle and they still hit hard. Amazing sub amazing service from Sonic Electronix.

18 of 30 found this helpful

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joshua

Leesburgleesburg, OH

Overall
Durability
Value
Features
Design
Usability
Simply amazing

August 3, 2014

I have 2 of these monsters in a custom ported box tuned to 34hz and have a Hifonics brx1600 powering them at 1 ohm. And they SLAM!!! I would definitely recommend these to anyone wanting subs at a good price that will still shake any building you drive by!

16 of 28 found this helpful

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Jacob

Louisville

Overall
Durability
Value
Features
Design
Usability
Excellent Woofer

December 24, 2013

When I originally purchased this sub, I was skeptical because I thought RE Audio wasn't as good as it used to be. Boy was i wrong, this sub can hit any note and sound good doing it. Just try not to go too much over the rms rating, around 750 watts is perfect. I fed mine 900 watts from a Hifonics Brz 1200.1 for around 6 months and it did fine. I upgraded to a Crescendo BC2000d and it couldn't take the 1,100 watts of power at 2 ohms and it finally blew. For what it's made for, it's an excellent woofer at a great price, sonic FTW.

11 of 18 found this helpful

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Jay Frank

Pittsburgh Pa

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Durability
Value
Features
Design
Usability
True Sleeper!!

August 25, 2010

I have 2 of these installed in my 03 Acura Cl. I have them hooked up to a Hifonics Amp @ 1ohm 2000 rms. Let me tell you it feels like my eye lids are flapping when i crank it. Highly recommended! All my friends have a puzzled look when i tell them RE Audio aka True Sleepers.

21 of 38 found this helpful

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Christian

Kingsburg, CA

Overall
Durability
Value
Features
Design
Usability
Hits low

August 20, 2010

i have this sub in a ported box with a hitron 1000 it hits hard and sounds clean but im going to upgrade the amp its alread speechless

17 of 30 found this helpful

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purple sage cowboy

Denver Co

Overall
Durability
Value
Features
Design
Usability
wow amazing wooofers

April 1, 2014

I bought 2 of these and bought a dual enclosed did not fit ended finding are very well built ported box 1.5 thick MDF .They are being powered by a Rockfort Fosgate 1500 -1 bd amp that the birth certificate says 1946 watts I like that they give 40 %more power free.. to get back to sub woofers they are great I based my purchase on the testimony of these prodcuts the rest the system everything purchsed at sonic my head unit is the Pioneeer DEH -PRS wow incredible front door RE XXX compo and in the rear helix comps running om Rock fort 800 *4 that puts out 97 watts .ALL THESE INSTAED IN 20008 TOYOTA Siena it rocks in very big way

19 of 35 found this helpful

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ty

lancaster ma

Overall
Durability
Value
Features
Design
Usability
tinsle leads

October 24, 2013

own 2 of these running on a hifonics brutus 1200 rms giving them both 600 rms. the tinsle leads break often. ive repaired them close to 15 times in a matter of 8 months not so satisfied but i do love these subs, i just wish they would last and not have to re solder the leads every month

6 of 9 found this helpful

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Sze

Detroit, MI

Overall
Durability
Value
Features
Design
Usability
Damn

September 3, 2011

Running two off a Soundstream DTR1700.1d @ 1 ohm in 5.5 cubes to 25 hz with two 4" aeros.

Where my backseat should be, I have my box with my subs inverted in a Grand Prix.

Eventually doubling the system and doing a wall.

Anyways, by-far cleanest subs I have EVER heard and loudest for it's power rating. Annihilates the lows causing my cab to feel like a wind tunnel and still being cleaner than anything.
Going from an MTX 9515, I've VERY pleased with how much better these hit the lows and are much more articulate while doing so. I really hated how "punchy" my 9500 was, where these are smooth and instantly transfer note-to-note without any transition noise, but rather just a clean sine wave.

16 of 29 found this helpful

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JP133

Fort Worth, TX

Overall
Durability
Value
Features
Design
Usability
I love it!

January 17, 2014

The subwoofer, in my opinion is one of the best you can get in the price range. It's beefy looking and sounds amazing. At the moment i have it in a pre. fab box, and it still sounds great. once i get a custom box, which are kind of price.. i expect this to sound like heaven.
i would recommend this to anyone who is starting out or looking for an inexpensive subwoofer to have in a small car. I only have one in my suzuki forenza and it shakes that trunk quite well.

16 of 30 found this helpful

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Tiburon

Parkers Prairie MN

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Durability
Value
Features
Design
Usability
Absolutely Solid Subs!!! cant go wrong!

December 2, 2013

Get 2 of these bad boys and you are set for all the bass in the world, If you do get 2, whatever you do, DO NOT put 2 of these subs in a open box and make sure there is a divider between otherwise you will have issues in the future.

7 of 12 found this helpful

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GB

Stony Brook, NY

Overall
Durability
Value
Features
Design
Usability
Be careful with RE Audio subs

January 2, 2013

Note: Sonic Electronics has been excellent in this whole mess, so this review is not about them.

I purchased (2) RE Audio SEX12D4 units. I am powering with a RF 1200.1 (600w each @ 1ohm). The speakers were broken in for about 2 weeks. They sounded great! I am not in comp and I am NOT a ground pounder. Just like my music to be loud at speed.

Within 5 months one unit blew a voice coil. Since unit was under warranty, RE replaced it (or repaired it), no charge.

New one came - had it installed. Let it break in 1.5 - 2 weeks. 3 months later, another V/C blew. Same amp, same box. Nothing else changed. I do not listen to distortion, more for SQ. Not sure what's going on. Sonic REPLACED this unit with a brand new unit. 2 weeks ago, blown V/C!! Now RE wants me to send it back, however, apparently they DO NOT cover blown V/Cs!

I am purchasing (2) Alpine Type R 12 Dual 4s. These are a very good sub for the money, and seem much more reliable.

7 of 12 found this helpful

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GBPLUS

Long Island, NY

Overall
Durability
Value
Features
Design
Usability
RE Audio 12" Sub Review in Full

October 16, 2012

I went to Daytona Beach in 2009 for our 20th anniversary of going to the show (SBN). We ran into the RE rep, who had a small car laid out nicely. I heard good things about the subs and amps, and gave these a shot. I was running (2) SEX 12s on Rockford power (about 250w RMS to each). These subs sounded okay, but I blew a voice coil twice. RE Audio reconed the first time, and the cone fried again.

I then purchased a higher power RF amp (1358RMS x1 @ 1ohm). Sonic replaced the sub the second time around (thank you), and I just had it installed last night. Boy, with the right power - which I have now, these RE Audio subs hit very hard!! Low, deep bass. I am still breaking them in, so I am taking it easy. But night and day with the power upgrade.

If you buy these subs, feed them CLEAN POWER. Rockford 1200 / 1300 x1 @ 1ohm amps kill it. And they can handle it too, just be careful of your clipping. RE customer service was not that great.

Sonic was VERY GOOD to EXCELLENT at all levels; price, shipping, product selection, customer service, etc. WILL deal with again.

Great buy!

4 of 6 found this helpful

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Eric123

Quitman, GA

Overall
Durability
Value
Features
Design
Usability
Best Bang for the Buck

December 6, 2011

First of all I've owned two RE XXX 12" dual 2 ohm subs now for 10 years, yes that's 10 years; and I've never had a problem with them. Second I've owned two RE SEX 10" dual 4 ohm subs for 5 years and never had a problem with them. These people are using the wrong box size and the wrong port size when applicable. These subs will handle more than 600 watts rms if they're put in the right box. They are ear splitting loud too. I let my nephew borrow my 10's and all his friends wanted to know what kind they were because you could hear him from 6 blocks away. I installed them in his Dodge Dakota Club Cab in 1.0 cubic foot boxes with 2" ports. I suggest going to reaudio.com and look at their recommendations for box and port sizes. They slammed until he had a wreck and his truck burned up, thank GOD he was ok. For this Christmas I'm installing 2 of these in a 2.50 cubic foot box with 3" ports at 34 Hz. The amp I'm going to use is a Hifonics HFi1500D. Note that the amp is 300 watts too high. However if you calculate a class "d" amp you only get 90% wattage output. One more thing I HAVE BEEN A PROFESSIONAL INSTALLER FOR 20 YEARS. Thank you.

15 of 28 found this helpful

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big T

New Roads, Louisiana

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Durability
Value
Features
Design
Usability
the cleanest sub around

January 7, 2011

This sub is excellent. I have it hooked to an audioque 1200. Its getting around 800 watts and I've had it for months without any problems. sounds great with all music. basically a perfect sub, don't have second thoughts about this sub. well worth the money

4 of 6 found this helpful

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Swifty

New york

Overall
Durability
Value
Features
Design
Usability
Slams

December 29, 2013

This sub is amazing i have it in my 2000 jeep cherokee sport running off a kicker dx 1000.1 amp even tho it says 600 rms this thing takes the 1000 rms wired at 2 ohms like a champ and out bangs my buddys mtx terminator 12s type rs and also 2 kicker comp 15s people are amazed when i say its only one 12 deffinetly one of the best hitting and sounding sub for the price re did a great job with this one.

8 of 15 found this helpful

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Seth

hudson, OH

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Durability
Value
Features
Design
Usability
Don't think, Just buy.

October 7, 2013

Hands down, these have to be some of the best subwoofers i have installed and have had the pleasure of owning. When in the proper enclosure they are the most precise subs i have ever heard, the highs are brilliant, the mids are stunningly clear and the lows pound hard. The build quality great and they feel and look well made. I have 2 in a sealed box a tad larger than the optimal size, powered by a Pioneer GM-D9601 and they are amazing. at a normal volume they are precise and accurate, but when you turn them up, all i can say is wow. Simply, they are loud. The pound your chest with keeping sound quality in check. There is no way you can go wrong with any RE product.

6 of 11 found this helpful

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Brandon E

Decatur, IN

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Value
Features
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Usability
Definiately Worth The Price and Much More

March 13, 2013

I have been to car audio competitions and local shops all the time. On the competition note you see all kinds of subwoofers from Pure Sound Quality to Pure SPL. This Sub is More towards Sound Quality. But at the same time can get LOUD but not Extremely Loud. I Have 2 RE Audio SEX12D4s in a Ported Box tuned to 38 Hz. Even Though it is tuned pretty high they still sound Amazing. I Have them in a big 4 door car which is one reason why they aren't the loudest. If they were in a little smaller car they would be a little louder. Im Hitting the Mid 120s on DB Term-Lab. Now that's not much to the 150+ SPL systems in competition but these sound extremely good at that volume which anything above 125 Db is hard to get and still sound as good as these.

Im powering these with a Hifonics Gladiator GLX1400.1D wired to 1 ohm at 1200 watts rms.

ALL IN ALL these are pretty amazing...not the best if you want straight SPL but they are not made for it. Sound Quality Wise. Best I have ever heard outside of Competition. But then most competition cars have more than 2 subwoofers.

Buy these if you like any type of music from Hip-Hop and Rap, to Country and Rock.

Yes they are made in china and a lot of people say they are junk. People say get the ALpine Type Rs over these but people don't realize that ALpine Type Rs are made in china too...Even JL Audio is made in china Except their W7.

With the Box I have them in a ported tuned to 38 Hz. 1.7 Cubic Feet Per Sub..... RE Specs say to tune to 32 Hz with 2.0 Cubic Feet for Optimum.

I am Very Picky when it comes to Subs and how they sound. And These Even Impress Me

If you want Amazing Sound and still have the potential to get Decently Loud then these are for you. and for the price YOU CANT BEAT IT. These are easily worth twice this price.

4 of 7 found this helpful

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Xanderman

Sacramento, CA

Overall
Durability
Value
Features
Design
Usability
Awesome Subwoofer

December 30, 2012

BUY THIS WOOFER! so i found this d4 and was skeptical about buying it but I saw some cool videos on youtube and read some reviews and sprang for it because it was a great deal. It went out of stock as I was buying it so sonic got one from a warehouse back east and shipped it to cali for me for free. I had to make minor cuts to fit it in my existing box (a sonic original box) because i forgot to check mounting specs, but once it was in I knew it would rock. Everyone asks if I have multiple subs or if I have 15's and they are so surprised when i tell them It's only one 12. She hits the lows that know one knows and can really handle what the specs say. Mine is hooked up with 600rms and 12oo peak and the coil does warm up after a lot of slumping, but it takes it all so well. I will always support sonic and RE audio because their support and products have served me amazingly!

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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 $29.99

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

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

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

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

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

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 SEX12D4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 RE Audio SEX12D4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 RE Audio SEX12D4 Subwoofers

Mono Amp

4 Channel Amp

4 RE Audio SEX12D4 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 1 question and 3 answers
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Why did you choose this?
Sonic Electronix Store
I've heard nothing but great responses about RE products. 2 of my friends use RE and I can hear them for miles. One friend has 2 10'' and the other has an 18''. Needless to say the 18 is stupid clear and pounds like crazy. The 2 10's are powered by a hifonics brutus, and the 18 is powered by a 5k orion.
Ricky S on Jan 1, 2015
i like the looks and reviews say this thing pounds. will see.
Damian G on Nov 25, 2014
RE is a reliable product
Jeannie M on Dec 19, 2014

Product Summary

Manufacturer

Model Number

SEX12D4

UPC

611892991071

Weight

23.00lbs

Internal SKU

sex12d4

Internal Product ID

27312

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 SEX12D4

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