• RE Audio RFX Car Subwoofer Review
  • Subwoofer Size Buying Guide
RE Audio RFX12D4: main picture thumbnail RE Audio RFX12D4: alternate picture thumbnail RE Audio RFX12D4: alternate picture thumbnail RE Audio RFX12D4: alternate picture thumbnail

RE Audio RFX12D4

12" Dual 4 ohm RFX Series Subwoofer

  • 5.0

(2 reviews)

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Price Information

$212.48

–$147.53

$64.95

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Customer Testimonial

The only thing I can say is A++ in all things to do with Sonic Electronix, shipping, customer service, prices, everything. I will be buying all my gear and anything I need for car audio from this site. I can't believe how much I saved on my order compared to the prices here in east coast Canada.

- Jeff from P.E.I. Canada

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Product Features:
  • 12" Dual 4 ohm RFX Series Subwoofer
  • Power Handling:
    • RMS: 190 watts
  • Impedance: Dual 4 ohm
  • Kraft Pulp Cone
  • Santoprene Rubber Surround
  • Pressed steel basket
  • FEA Optimized motor structure
  • Linear Conex spiders
  • Rubber gasket
  • High temperature 8-layer copper voice coil
  • Powerful, Double Stack Magnet
  • Sensitivity: 84.7 dB
  • Mounting Depth: 6-5/16"
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
Subwoofer Specifications
Subwoofer Series RFX
Subwoofer Size 12"
RMS Power Handling 190 watts
Voice Coil(s) Dual
Impedance (Per Voice Coil) 4 ohms
Sensitivity 87.3 dB
Xmax (millimeters) 12 mm
Subwoofer Design Round / Circle
Main Cone Color Black
Woofer Surround Rubber
Magnet Structure Double Stacked
Subwoofer Grille No
Re-Cone Kit Available No
Recommended Enclosure Specifications
Recommended Enclosure Type Ported / Vented
Sealed
Minimum Sealed Box Volume 0.6 cubic feet
Maximum Sealed Box Volume 0.8 cubic feet
Minimum Ported Box Volume 0.95 cubic feet
Maximum Ported Box Volume 1.6 cubic feet
Top-Mount Depth 6-5/16"
Cutout Diameter 11"
Shallow Mount Installation No
Electromechanical Parameters
Equivalent Compliance (Vas) 182 liters
Total Speaker Q Value (Qts) 0.38
Electrical Q Value (Qes) .042
Mechanical Q Value (Qms) 4.27
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 RFX12D4
Average Customer Rating is 5.0 out of 5 stars:
  • 5.0
based on 2 Reviews
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Rating Distribution:
5 star:
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what's this?
Average Attributes Rating:
Durability
  • 5.0
5.0
Value
  • 5.0
5.0
Features
  • 4.5
4.5
Design
  • 5.0
5.0
Usability
  • 5.0
5.0
what's this?
Most Helpful Customer Reviews:
March 4, 2013 Follow up after 1 month of use.
Review by
Daniel Henderson from Milledgeville, GA
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 4.0
Design
  • 5.0
Usability
  • 5.0
After having this sub for a month and putting about 2-3 hours of daily play on it this sub is only getting louder. After doing some modifications to the box mentioned above I now have this sub down firing in my Suburban still with only 200 watts rms and it far surpasses a friends blazer with 2 JL Audio 12w3's on a JL Audio 500/1v2 in spl and sq. For the money this is the best subwoofer I have ever owned and still highly recommend it.
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February 7, 2013 This thing is amazing
Review by
Daniel from Milledgeville, GA
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I was building a system on a budget and was having a hard time deciding on a subwoofer and I finally decided RE Audio SRX 12D4 but when I finally had the money to purchase said subwoofer Sonic was sold out.So after my mini melt down I decided on this RE Audio RFX 12D4.At first I was worried this sub wouldn't perform the way I wanted only being 190 watts rms and being such a inexpensive sub.This thing is an absolute beast and has surpassed all my expectations.I am powering this sub with a Xtant 121m at 2 ohms which is providing about 200 watts rms at 3/4 gain with no clipping.I have it placed in a 1.2 cubic foot sealed Belva MDFS12 (Also purchased from Sonic) which is .4 cubic feet bigger than recommended specs but I have found a little bigger is always better.This sub far surpasses the MTX 12 I previously had and is only 2 days old and not even broke in yet.This sub is a perfect chose for anyone looking for an awesome subwoofer at an unbeatable price.I give this sub a 5 out of 5 and the only thing negative I can find to say is the mounting holes are a little larger than most subwoofers available nowadays so I suggest getting screws with large heads.If your looking for a sub for under $80 that performs like well known $200+ subs look no further than the RE Audio RFX 12D4.Not to mention this thing is gorgeous
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Empty Enclosures
Every subwoofer needs an enclosure to mount in and these high quality boxes are perfect for your new woofer! After a quick installation, you'll be ready for some real bass in your car!
  Product Price Add?
Sealed Subwoofer Enclosure Sealed Subwoofer Enclosure
Single sealed 12" hatchback enclosure made from 3/4" MDF construction and covered in gray carpet.
$39.99
Subwoofer Grilles
Protect your subwoofer while making your enclosure look great! These subwoofer grilles are the perfect addition to your new subwoofer.
  Product Price Add?
12" Universal Subwoofer Grille 12" Universal Subwoofer Grille
Protect your subwoofer with this aluminum grille that is simple to install.
$18.99
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 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.
$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 RFX12D4 RE Audio RFX12D4 $64.95

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

Product Summary

Manufacturer: RE Audio
Model number: RFX12D4
UPC: 611892991736
Weight: 13.00 lbs
Internal SKU: rfx12d4
Internal product ID: 43761