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  • MB Quart RLP Shallow Mount Subwoofers
  • Subwoofer Size Buying Guide
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MB Quart RLP-304

12" Dual 4 ohm Low-Profile Reference Series Car Subwoofer

  • 4.7

(9 reviews)

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Price Information

$169.99

–$90.00

$79.99

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Customer Testimonial

I recommend Sonic for any purchase. Excellent! Thanks a lot Tiffany.

- Sun K. from Korea

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  • 12" Dual 4 Ohm Reference Series Shallow Mount Subwoofer
  • Power Handling:
    • Peak: 600 watts
    • RMS: 300 watts
  • Impedance: Dual 4 Ohm
  • Injection molded polypropylene cone woofer
  • Foam surround
  • Shallow mount for small and compact installations
  • Recommended use in sealed enclosures
  • Dual voice coils
  • Frequency response: 25-160 Hz
  • Sensitivity: 86 dB
  • 1-year SonicElectronix.com warranty
Subwoofer Specifications
Subwoofer Series Reference (MB Quart)
Subwoofer Size 12"
Peak Power Handling 600 watts
RMS Power Handling 300 watts
Voice Coil(s) Dual
Impedance (Per Voice Coil) 4 ohms
Frequency Response 25 - 160 Hz
Sensitivity 86 dB
Xmax (millimeters) 9 mm
Subwoofer Design Round / Circle
Main Cone Color Black
Woofer Composition Injection Molded Polypropylene (IMPP)
Woofer Surround Foam
Subwoofer Grille No
Re-Cone Kit Available No
Recommended Enclosure Specifications
Recommended Enclosure Type Sealed
Minimum Sealed Box Volume 0.5 cubic feet
Maximum Sealed Box Volume 0.75 cubic feet
Top-Mount Depth 3"
Cutout Diameter 10-1/2"
Shallow Mount Installation Yes
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 MB Quart RLP-304
Average Customer Rating is 4.7 out of 5 stars:
  • 4.7
based on 9 Reviews
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Rating Distribution:
5 star:
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.
 78%
4 star:
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 11%
3 star:
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 11%
2 star:
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 0%
1 star:
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 0%
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Average Attributes Rating:
Durability
  • 4.7
 4.7
Value
  • 4.8
 4.8
Features
  • 4.6
 4.6
Design
  • 4.3
 4.3
Usability
  • 4.9
 4.9
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Quick Comparison:
Most helpful favorable review vs. Most helpful critical review
Most Helpful Customer Reviews:
July 19, 2012 Great space saver and gets the job done!
Review by
Big Wash from Washington D.C.
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 4.0
Design
  • 4.0
Usability
  • 5.0
This subwoofer is the best if you don't have a lot space. Rich deep bass and can handle a good amount of power!
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May 5, 2012 Great Shallow mount!!
Review by
J.T. from Clarksville, AR
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 4.0
Usability
  • 5.0
This product is GREAT. I have a SINGLE cab '87 Ford Ranger, custom built box and it fits. The box has bout .7cu ft and i have it wired at 2 ohms, pushing 550 watts to it. This subwoofer SLAMS. People are amazed by how loud it is, especially for ONE 12in SHALLOW mount. I hit the lows very easily and the highs will impress you. A very good unit to purchase!!
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January 16, 2012 MB Quart RLP 304
Review by
Scott from Boiling Springs SC
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
Great sound, excellent speakers.
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November 1, 2011 Love it!
Review by
Halfski from porterville ca
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 4.0
Design
  • 4.0
Usability
  • 5.0
I just recently bought one to fit hidden away in my supercab truck and the sound was great! I have put alot of speaker components in and this sub was great! Rich clean bass!
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October 14, 2011 Good sound for the $$$
Review by
Angel from Elizabeth, NJ
Overall
  • 4.0
Durability
  • 4.0
Value
  • 4.0
Features
  • 4.0
Design
  • 5.0
Usability
  • 5.0
Quality, price, are the reason I recommend this product. Looks good too.
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View All 9 Reviews for MB Quart RLP-304
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?
MB Quart RLP-304 MB Quart RLP-304 $79.99
Related products
MB Quart RLP-304 Subwoofer Pair Combo
Pair of 12" Reference Series Subwoofers • Shallow Mount • Dual 4 Ohm • 1200 Watts Max • 600 Watts RMS • Injection Molded Polypropylene Cone • Foam Surround • Recommended for Sealed Enclosures
$151.96
out of stock
More info

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

Product Summary

Manufacturer: MB Quart
Model number: RLP-304
UPC: 806576216483
Weight: 11.40 lbs
Internal SKU: rlp304
Internal product ID: 19606