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RE Audio SX18D2

18" Dual 2 ohm SX Series Car Subwoofer

  • 4.7

(10 reviews)

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$824.99

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$279.99

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Ryan has been very helpful. We got disconnected during our conversation and I thought okay this is it. I was pleasantly surprised the next morning by his email with the info I needed, his help made me decide the ZK150 from your store. wish more sales people were as dedicated as Ryan.

Nahid

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RE Audio SX Subwoofers

RE Audio raises the bar for high output with the SX line of their competition grade, high excursion subwoofers. With an impressive power handling rating of 1000 Watts RMS – this subwoofer shows you it’s meant for those serious about quality bass.

Every single component of this subwoofer has been crafted with precision in mind to obtain full, impactful bass. From its 3” eight layer aluminum flat voice coil, to its triple stacked magnets this high powered subwoofer will output with fine clarity.

The entire SX line of subwoofers can handle an impressive 1000 watts of RMS continuous power, no matter the size! With its large Rubatek Foam surround and FEA optimized motor structure; this woofer can handle large amounts of power, while maintaining durability. The RE Audio SX Subwoofers series is certainly one subwoofer manufactured with hi-fidelity audio in mind.

Subwoofer Features:
  • 18" Dual 2 ohm SX Series Car Subwoofer
  • Power Handling:
    • RMS: 1000 watts
  • Impedance: Dual 2 ohm
  • Dual composite 2-piece cone
  • Rubatek foam surround
  • FEA Optimized motor structure
  • Progressive spiders
  • Wrap around rubber gasket
  • Tork-Tite terminals
  • 3" 8-Layer voice coil
  • Cast aluminum basket
  • Triple stacked magnets
  • Designed specifically for ported/vented enclosures
  • Also available in a Dual 4 ohm: RE Audio SX18D4
  • Proudly made in the USA
  • Also found as: sx 18, sx18, sx 18d2, sx-18, sx-18d2
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
SX 18" T/S Parameters:
  • Electrical Q Value (Qes): 0.53
  • Mechanical Q Value (Qms): 6.1
  • Total Speaker Q Value (Qts): 0.48
  • Free Air Resonance (Fs): 33.2 Hz
  • Equivalent Compliance (Vas): 159 liters
  • One-Way, Linear Excursion (Xmax): 22 mm
  • Efficiency (SPL 1W/1m): 92.7 dB SPL
  • Effective Piston Area (Sd): 1210 cm2
  • DC Resistance (Re): 1.9 ohm
  • Nominal Impedance (Znom): Dual 2 ohm
  • Thermal Power Handling (Pe): 1000 W
  • Force Factor (Bl): 21

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

Subwoofer Specifications
Subwoofer Series SX
Subwoofer Size 18"
RMS Power Handling 1000 watts
Voice Coil(s) Dual
Impedance (Per Voice Coil) 2 ohms
Voice Coil Diameter 3"
Sensitivity 92.7 dB
Xmax (millimeters) 22 mm
Subwoofer Design Round / Circle
Main Cone Color Black
Woofer Composition Dual Composite 2-Piece Cone
Woofer Surround Rubatek Foam
Magnet Structure Triple Stacked
Subwoofer Grille No
Re-Cone Kit Available No
Recommended Enclosure Specifications
Recommended Enclosure Type Ported / Vented
Minimum Ported Box Volume 5.5 cubic feet
Maximum Ported Box Volume 8.0 cubic feet
Top-Mount Depth 9-1/2"
Cutout Diameter 16-3/4"
Shallow Mount Installation No
Electromechanical Parameters
Free-Air Resonance (Fs) 0.53 Hz
Equivalent Compliance (Vas) 159 liters
Total Speaker Q Value (Qts) 0.48
Electrical Q Value (Qes) 0.53
Electrical Resistance of Voice Coil (Re) 1.9 ohms
Mechanical Q Value (Qms) 6.1
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Manufacturer
Customer Review Summary for RE Audio SX18D2
Average Customer Rating is 4.7 out of 5 stars:
  • 4.7
based on 10 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
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80%
4 star:
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10%
3 star:
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10%
2 star:
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1 star:
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what's this?
Average Attributes Rating:
Durability
  • 4.9
4.9
Value
  • 4.6
4.6
Features
  • 4.6
4.6
Design
  • 4.8
4.8
Usability
  • 4.8
4.8
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
August 1, 2010 def buy
4 of 4 people found the following review helpful:
Review by
BREWSKI from Union,MO
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
i have one in my 2000 jeep grand Cherokee and the thing shakes my side mirrors so bad that i cant see the cars behind me when the bass hits. i give it a 10... a must buy.
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January 21, 2013 Great value!!!
Review by
FlyinRyan37 from forney, TX
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
it very good price for what you get and you can recone it to a FI BTL and swap the motor for a RE FD 18 and i have it going in my Ford Ranger 4000 watts
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September 27, 2012 re audio sx 18 d2
Review by
mike from palestine,texas
Overall
  • 3.0
Durability
  • 5.0
Value
  • 2.0
Features
  • 3.0
Design
  • 5.0
Usability
  • 4.0
This sub is good loud in the right size box

but not a competition speaker it simply doesn't have loudness like fi or dc audio has. Good for the money.
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May 16, 2012 18''sx Re subwoofer
Review by
kristie from mill hall, PA
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I just got one RE Audio SX18 one an RE Audio 4000watt amp and let me tell you it pounds so hard it makes the stuff in my house fall off the walls overall I like it .
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April 23, 2012 This thing gets down!
Review by
Robert from Villas, NJ
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
Needless to say this is strictly an spl sub. I have it in a fiberglassed 6.5 cu ft box tuned to 33 hz and this thing gets nasty low. In my explorer it peaks at around 45 hz, but itll play down to 25 hz smoothly. Now that I'm running enough wattage and no longer clipping the sub sounds perfect, and got much louder. And its only being pushed with around 800 watts rms! Enough to flex my roof, windshield, windows, doors, but not enough to be doing hair tricks and what not. Maybe its because its in an suv, but in anything smaller it would be death. Overall great buy! FYI this is my second one, the first one blew. Still havent determined the cause but Sonic replaced it. You guys are the best 5/5!
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View All 10 Reviews for RE Audio SX18D2
Speaker Wire
Choose from our recommended speaker wire to hook up your amplifier to your new subwoofer. The higher quality of speaker wire that it used for this connection, the better your subwoofer will sound.
  Product Price Add?
15 ft. of 12 AWG StreetWires Speaker Wire 15 ft. of 12 AWG StreetWires Speaker Wire
This SuperCable from StreetWires is a noise free link between your amplifier and your subwoofer.
$24.99
20 ft. of 12 AWG Kicker Speaker Wire 20 ft. of 12 AWG Kicker Speaker Wire
Kicker uses twisted pair technology and hyper-flex cable to provide you with the cleanest sound and a simple installation.
$39.95
Sound Dampening Material
Get the most sound out of your new subwoofer with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
  Product Price Add?
Dynamat Rubber Roller Dynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat!
$18.99
Dynamat Extreme Bulk Pack Dynamat Extreme Bulk Pack
36 ft. Dynamat Xtreme Bulk Pack enhances the sound for your entire car!
$159.99
Bass Reconstruction Processors
These sound processors are perfect for enhancing the lower frequencies of a car audio system. After some installation and tuning, your new system will sound better than ever!
  Product Price Add?
The Epicenter by AudioControl (Gray) The Epicenter by AudioControl (Gray)
The original bass booster expander with included remote will enhance the bass of your new system.
$159.99
Enclosure Accessories
These accessories are designed to help you build the custom enclosure that you have always wanted, or add to the box that you already bought. Either way, these products can assist you in achieving better sound, better looks, and more bass!
  Product Price Add?
20 oz. Bag of Poly-Fil 20 oz. Bag of Poly-Fil
Polyester fiber fiberfill adds better bass to your system.
$5.99
16 oz. Can of Adhesive Spray 16 oz. Can of Adhesive Spray
Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.
$5.99
Binding Post Terminal Cup Binding Post Terminal Cup
Use this to easily install a binding post terminal to your subwoofer enclosure.
$4.99
Banana Clip Terminals Banana Clip Terminals
These high grade banana clips allow you to plug into your banana clip ready terminal for a secure connection.
$4.99
Installation, Tools & Accessories
Don't forget to get the tools and accessories that will help you install your new subwoofer in your vehicle. Whether you opt for the professional installation card or the do-it-yourself method, you will need the following to help you out!
  Product Price Add?
Car Stereo and Speaker / Subwoofer Installation Tool Kit Car Stereo and Speaker / Subwoofer Installation Tool Kit
Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.
$14.99
System Optimization and Tuning
Use these items to assist in testing and tuning your new car audio system to perfection!
  Product Price Add?
Scosche SPL Meter Scosche SPL Meter
Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.
$24.99
AutoSound 2000 CD-101 AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102 AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103 AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99
Main Product
  Product Price Add?
RE Audio SX18D2 RE Audio SX18D2 $279.99

For more information on wiring subwoofers, visit our Subwoofer Wiring Guide: Subwoofer Wiring Guide

Product Summary

Manufacturer: RE Audio
Model number: SX18D2
Weight: 41.65 lbs
Internal SKU: sx18d2
Internal product ID: 27322