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RE Audio REX8D4

8" Dual 4 ohm REX Series Car Subwoofer

  • 4.4

(40 reviews)

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$109.98

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$49.99

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- boozeralex from Illinois

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Anything But Entry Level

What RE Audio calls entry level is anything but entry level. Introducing the new REX series. It offers incredible output and distortion free sound you would come to expect from subs costing far more. REX car subwoofers are perfect for those just entering the car audio scene. Popular among the import and other cars where weight is important, these lightweight subwoofers are an excellent solution for performance vehicles that can’t have heavy subwoofers with large boxes. The mica filled poly cone is stiff and rigid, while the Santoprene rubber surround allows excellent response. Behind the cone is a high temperature 8-layer copper voice coil, a FEA optimized motor structure, and a conex spider that all assist in the linearity of the subwoofer when in use. With a RMS power handling of only 175 watts, these subwoofers do not require a large, powerful amplifier. However, like all of the RE Audio subwoofers, they are capable of accepting much more power then the recommended RMS. For an entry level subwoofer that is far beyond all the other entry-level subwoofers, trust the RE Audio RES series of car subwoofers to bring great bass in your car.

  • 8" Dual 4 ohm REX Series Subwoofer
  • Power Handling:
    • RMS: 175 watts
  • Impedance: Dual 4 ohm
  • Mica filled poly cone woofer
  • Santoprene rubber surround
  • Pressed steel basket
  • FEA Optimized motor structure
  • Linear Conex spiders
  • Rubber gasket
  • High temperature 8-layer copper voice coil
  • Powerful, single stacked magnet
  • Also found as: REX-D4, REXD4
  • Sensitivity: 81.2 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
Subwoofer Specifications
Subwoofer Series REX
Subwoofer Size 8"
RMS Power Handling 175 watts
Voice Coil(s) Dual
Impedance (Per Voice Coil) 4 ohms
Sensitivity 81.2 dB
Xmax (millimeters) 12 mm
Subwoofer Design Round / Circle
Main Cone Color Black
Woofer Composition Mica Injected Polypropylene (MIPP)
Woofer Surround Santoprene Rubber
Magnet Structure Single Stacked
Subwoofer Grille No
Re-Cone Kit Available No
Recommended Enclosure Specifications
Recommended Enclosure Type Ported / Vented
Sealed
Minimum Sealed Box Volume 0.3 cubic feet
Maximum Sealed Box Volume 0.35 cubic feet
Minimum Ported Box Volume 0.35 cubic feet
Maximum Ported Box Volume 0.5 cubic feet
Top-Mount Depth 4-1/2"
Cutout Diameter 7-3/16"
Shallow Mount Installation No
Electromechanical Parameters
Free-Air Resonance (Fs) 22.8 Hz
Equivalent Compliance (Vas) 27.1 liters
Total Speaker Q Value (Qts) 0.34
Electrical Q Value (Qes) 0.38
Electrical Resistance of Voice Coil (Re) 3.2 ohms
Mechanical Q Value (Qms) 4.21
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 REX8D4
Average Customer Rating is 4.4 out of 5 stars:
  • 4.4
based on 40 Reviews
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Rating Distribution:
Average Attributes Rating:
Durability
  • 4.5
4.5
Value
  • 4.6
4.6
Features
  • 4.2
4.2
Design
  • 4.6
4.6
Usability
  • 4.4
4.4
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
October 1, 2010 Holy Moly!
4 of 4 people found the following review helpful:
Review by
C from California
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
WOW! So i hadnt really heard too much about RE before but i was looking for a cheap sub to hold me off until i could afford a better quality woofer. now, i dont have to get a better quality woofer! for 45$ shipped, you will not find a better sub than this. 175 watts RMS my ass! this little monster will easily handle more as long as you know what you're doing. great bass, relatively shallow mounting depth, great company but priced the same as those cheap china knock offs, what more could you possibly want! all for $45!!!!!!

I'm now an RE fan for life!!!!
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May 2, 2012 One Awesome Sub!
2 of 2 people found the following review helpful:
Review by
Glenn from Grants Pass, OR
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I needed a sub for my car that would give me decent bass and weigh as little as possible. I tried the REX8D4 figuring that for $49.00 I couldn't go wrong. Was I ever amazed at what this sub can do!! I built a .35 cu. ft. box for it and lined the interior with .75" of three layer Sonic Barrier and it's getting 150 watts at 2ohms.



After spending an hour of listening to various types of music, I found this sub to hit just as hard as the REX10D4 and it goes just as low (about 30Hz). The best part is, it can be crossed over as high as 125 Hz and will give you suberb mid bass as well as the lowest of frequencies. The transient response is fantastic, it does not sound muddy at all and the best part is it does all this at very high SPL levels!!



This sub is a great buy and will not disappoint you in any way!!!
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December 29, 2011 overrated
2 of 2 people found the following review helpful:
Review by
Thomas from Bluffton, SC
Overall
  • 3.0
Durability
  • 3.0
Value
  • 2.0
Features
  • 2.0
Design
  • 4.0
Usability
  • 2.0
Great looking sub. Material cone and surround is made of seems to be of good quality, my biggest complaint of this sub is the cheap hookups for the speaker wire. Upon installation one of the negative legs broke on me. for a few bucks extra they could have used a better quality connector.



I used this sub to replace the factory 8 in my 02 yukon. It is powered by the factory amp and sounds decent for what it is but i do not believe it would take much more than 100-125 watts. It will do for now but honestly i wish i had shelled out a few extra bucks and got a better sub.
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December 6, 2011 Big bang for the buck
2 of 2 people found the following review helpful:
Review by
Mike P from Bayville, NJ
Overall
  • 4.0
Durability
  • 4.0
Value
  • 5.0
Features
  • 4.0
Design
  • 5.0
Usability
  • 5.0
I have this run in parallel on an MTX terminator amp. Gains about halfway and this little 8" hits harder than some 10s I've heard. I have it in a sealed box, which it's really not even designed for, and it still sounds great. Very clear, solid bass. And for $50, you really can't go wrong. It does tend to bark a bit at higher volumes, but I'm thinking that's me. I keep forgetting it's an 8".
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June 15, 2013 Bang for the buck
Review by
JDDubb from Seattle, WA
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I have two of these on my golf cart each getting 225 watts. Each one is in a .35 cubic feet box and they sound amazing, better than I'd hoped especially in an open air environment. I could imaging how these would knock in a SUV, hatchback, etc.
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View All 40 Reviews for RE Audio REX8D4
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.
$34.95
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 Xtreme Trunk Kit Dynamat Xtreme Trunk Kit
Get better sounding bass from your new subwoofer with enough Dynamat Extreme for your entire trunk.
$93.99
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.
$6.99
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 REX8D4 RE Audio REX8D4 $49.99

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

Product Summary

Manufacturer: RE Audio
Model number: REX8D4
UPC: 611892991019
Weight: 7.00 lbs
Internal SKU: rex8d4
Internal product ID: 27300