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RE Audio REX8S4

175W 8" REX Series Single 4 ohm Subwoofer

RE Audio
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• Peak Power: 350W
• RMS Power: 175W
• Single 4 ohm
• Mica Filled Poly Cone Woofer
• Santoprene Surround
• FEA Optimized Motor Structure
• High Temperature 8-Layer Copper Voice Coil

Learn more about the rex8s4

Good news and a little bad...

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Product Highlights


• Peak Power: 350W
• RMS Power: 175W
• Single 4 ohm
• Mica Filled Poly Cone Woofer
• Santoprene Surround
• FEA Optimized Motor Structure
• High Temperature 8-Layer Copper Voice Coil

Description


RE Audio brand icon

Authorized dealer

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.

General Features:

  • 8" Single 4 ohm REX Series Subwoofer
  • Power Handling:
    • Peak: 350 watts
    • RMS: 175 watts
  • Impedance: Single 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
  • Resonance Frequency (Fs): 24.5 Hz
  • Top-mount depth: 4-1/2"
  • Sensitivity: 82.63 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Product history:

RE Audio REX8S4-2 thumbnail
(newest, current model)
RE Audio REX8S4 thumbnail
(previous model, replaced by RE Audio REXv2-8 (REXv2-8 S4, REX8S4 v2))

Subwoofer Wiring Guide


Wiring Guide to Wire 1 RE Audio REX8S4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 RE Audio REX8S4 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 RE Audio REX8S4 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 RE Audio REX8S4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Series
REX Series
Subwoofer Size
8"
Peak Power Handling
350 watts
RMS Power Handling
175 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
Sensitivity
82.63 dB
Xmax (millimeters)
13 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Polypropylene-Mica
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
0.44 cubic feet
Maximum Sealed Box Volume
0.74 cubic feet
Minimum Ported Box Volume
1.14 cubic feet
Maximum Ported Box Volume
1.41 cubic feet
Top-Mount Depth (Mounting Depth)
4-1/2"
Cutout Diameter
7-3/8"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
24.5 Hz
Equivalent Compliance (Vas)
23.9 liters
Total Speaker Q Value (Qts)
0.42
Electrical Q Value (Qes)
0.44
Electrical Resistance of Voice Coil (Re)
3.74 ohm
Mechanical Q Value (Qms)
8.36
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

REX8S4

Weight:

7.55lbs

Internal SKU:

rex8s4

Internal Product ID:

60586

Product and How-to Videos


  • RE Audio New Product Line Overview | CES 2015
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?

Customer Ratings & Reviews


RE Audio REX8S4 thumbnail image

5 star
89%
4 star
11%
3 star
0%
2 star
0%
1 star
0%



Durability
4.9
Value
4.9
Features
4.6
Design
4.9
Usability
4.8

Customer Reviews

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Great Replacement

First of all it got here in 3 Days, when I paid nothing for shipping. I am using it as a Home Theater sub or a 2.1 system. I had to adjust the mounting hole but aside it was a snug fit. it is being powered by a 70-100w rms amp. It sounds amazing and louder. as of right now i'm in love with it. Definitely Recommend it!

By Valentin on July 19, 2013

14 found this helpful


REX8S4

I have never heard of RE but after owning this little 8 I will be back

By Jason on September 17, 2013

12 found this helpful


Wow! I Love RE Audio Now!

I have gone through many different brands of car audio including some of the best. FI/ Obsidian, Sundown, AQ, Kicker, Pioneer, Rockford Fosgate, Audiopipe, Diamond Audio, Skar and much more and i can honestly say that these 8s impressed me very much. I built a box about .85 cubic foot and tuned to 36 hz. and these things sound amazing and are very loud and clear. i put down my friends 2 kicker 12s, I fed them 400 or more watts rms of clean power and they handle it like a champ with no distortion, bottoming out or anything. overall an amazing sub for the price.

By Pere on September 3, 2013

8 found this helpful


Excellent Sub for Home Theatre/Backyard Parties!

With the low Fs and Qts this sub would be redonkulous in a T-Line enclosure! However, my goal with this driver was to replace a "Kicking" 10" driver that's Comp-arable. (Hint) that was in a HUGE T-Line box. That huge box sat around taking-up lots of space in my home office room waiting for the yearly parties to come around. Sooo I decided to go with a better quality 8-incher and make an L-Slot Ported enclosure to fit into my IKEA Expedit shelving unit. Using Cabinet-Grade .75" Plywood made an enclosure 13 x 13 x 18 for 1.02 cu. ft. internal tuned to 34Hz. Volume sounds same, but plays cleaner! And that's with being under-powered by a Dayton Audio MCA2250E 2.1 Channel Class D Plate Amplifier which gives 50 Watts RMS @ 4Ohms for the sub channel! I would to hear one of these in an AutoTuba enclosure!

By TheGDog on February 19, 2014

6 found this helpful


Great sub for the money.

I bought this subwoofer to hold me over while I was working onmycustom box for my fi audio sub. i have used the RE for about a month in a simple ported box I made and it sounds really good. Im using rockgord fosgste prime 750 amp which is a little over 200 watts @4 ohm. Using this single 8 folks out the stock sound nicely. Your not going to flex your trunk apart with 1 8. But it has great sound, gets really low and is really a fair price. The only thing I would like to see is spring loaded wire terminals rather than spade connectors. I would suggest it to anyone looking for a nice sounding low hitting 8 in woofer. I have used lanzar max 8s, sunfown audio sa8s, aq/sounqubed, and fi audio just to name a few.

By mojo on February 17, 2014

7 found this helpful


bang for your buck

Nicely built.for a 8" sub it rocks..used as an oem upgrade on an hhr factory box. Add a 3/4" spacer and removed stock hhr sub grille..upgraded si sub amp..huge difference. Bass upgrade for less than $100.

By carlos on December 23, 2013

7 found this helpful


awesome product!

i honestly have no complaints about this product, i got 4 re audio rex 8's and these things hammer!!! I am very happy about this purchase.

By ksalais on February 10, 2014

6 found this helpful


Best bang for buck yet!

I put these subs in a backpack. I also had a pair of these subs in my car's door, as a 8" door sub.
They sound phenomenal, clean punchy sound, great power handling. I would highly recommend these subs for a sealed box, as they sound wonderful in one :)
give them good clean power though, they love it!

By Sterling on September 19, 2013

6 found this helpful


RE Audio REX8S4

I bought a pair of these 8's for a car of mine. Space was limited. These speakers are hard to beat for the price. Sound good as well, so a win win.

By Riprock on May 22, 2014

5 found this helpful




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