Garage
Shop

See all parts that fit your 1994 DeVille

MB Quart RLP-304

300W 12" Reference Series Dual 4 ohm Low-Profile Subwoofer

MB Quart
Shop all MB Quart
Product videos
highlight-star-icon

• 600W Peak
• 300W RMS
• Injection Molded Polypropylene Cone
• Foam Surround
• Recommended for Sealed Enclosures

Learn more about the rlp304

We apologize

This item has been discontinued


Loading...
S2-S50 main

Alpine S2-S50

340W Peak (110W RMS) 5.25" S-Series Hi-Res 2-Way Coaxial 4-ohm Car Speakers

2
-18.78%

$129.95

List price $160.00

Product Highlights


• 600W Peak
• 300W RMS
• Injection Molded Polypropylene Cone
• Foam Surround
• Recommended for Sealed Enclosures

Description


MB Quart brand icon

Authorized dealer

  • 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 Manufacturer's Warranty

Subwoofer Wiring Guide


Wiring Guide to Wire 1 MB Quart RLP-304 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 MB Quart RLP-304 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 MB Quart RLP-304 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 MB Quart RLP-304 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


Loading...
CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
Club 522F main

JBL Club 522F (SPKCB522FAM)

270W Peak (90W RMS) 5.25" Club Series 2 Way Coaxial 3-ohm Speakers

-42.29%

$74.99

List price $129.95

Reference 5030cx main

Infinity Reference 5030cx (REF5030CX)

390W Peak (130W RMS) 5.25" Reference Series 2-Way 3-ohm Component Speaker System

2
-60.01%

$99.95

List price $249.95

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth (SiriusXM Ready)

43
-16.69%

$149.95

List price $180.00

Limited time!
XAV-AX8500 main

Sony XAV-AX8500

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Wired Android Auto (SiriusXM Ready)

2
-20.20%

$798.00

List price $999.99

DEH-S7200BHS main

Pioneer DEH-S7200BHS

Single DIN CD Receiver with Bluetooth, HD Radio and SiriusXM Ready

2
-10.72%

$249.99

List price $280.00

REF507CF main

Infinity REF507CF (INFSPKRF507CFUS)

390W Peak (130W RMS) 5.25" Reference Series 2-Way 3-ohm Component Speaker System

-12.00%

$219.95

List price $249.95

MVH-S322BT main

Pioneer MVH-S322BT

Single DIN Digital Media Receiver with Bluetooth and Amazon Alexa

7
-13.34%

$129.99

List price $150.00

KMM-X705 main

Kenwood eXcelon KMM-X705

Single DIN Digital Media Receiver with Bluetooth, Built-in Alexa (Sirius XM Ready)

6
-20.40%

$199.00

List price $250.00

KDC-X305 main

Kenwood eXcelon KDC-X305

Single DIN CD Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)

23
-17.08%

$199.00

List price $240.00


Best selling similar products

Marine Club 12 small

JBL CB122 Club Marine 12

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Polypropylene Cone
• Rubber Surround
• Impedance: Single 4 ohm
• Mount depth: 7-13/16"
• Sensitivity: 89 dB

(1)

$119.95

List price $379.95

VCW124v3 small

NVX VCW124 Version 3 (VCW124v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 4 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 7.02"
• Sensitivity: 85 dB (1W/1m)

(132)

$239.99

List price $287.99

12W6v3-D4 small

JL Audio 12W6v3-D4

• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Mineral-Filled Polypropylene Cone
• Butyl Rubber Surround
• Mount depth: 7.52"
• Sensitivity: 85.4 dB

(25)

$949.99

List price $949.99

SQW124 small

NVX SQW124

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.51"
• Sensitivity: 84 dB

$299.99

List price $359.99

P3D4-12 small

Rockford Fosgate Punch P3 P3D4-12

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Anodized Aluminum Cone
• Santoprene Rubber Surround
• Mount depth: 6.66"
• Sensitivity: 85 dB

(134)

$229.99

List price $259.99

SRX1240 small

Memphis SRX1240

• Peak Power: 500 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 4.92"
• Sensitivity: 85 dB

$89.99

List price $139.95

SW-M12D2 small

Sundown Audio M-12 D2 12" (M12D2)

• Peak Power: 4000 watts
• RMS Power: 2000 watts
• Impedance: Dual 2 ohm
• Polypropylene Cone
• High Roll Foam Surround
• Mount depth: 10.88"
• Sensitivity: 80.6 dB

(1)

$599.99

List price $719.99

VCW122v3 small

NVX VCW122 Version 3 (VCW122v3)

• Peak Power: 2400 watts
• RMS Power: 1200 watts
• Impedance: Dual 2 ohm
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll Foam Surround with black nylon stitching
• Mount depth: 7.02"
• Sensitivity: 85 dB (1W/1m)

(94)

$239.99

List price $287.99

Stage 122 small

JBL Stage 122 (JBLSUBST122AM)

• Peak Power: 1000 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 6"
• Sensitivity: 91 dB

$109.95

List price $129.95

YSW122 small

NVX YSW122

• Peak Power: 1600 watts
• RMS Power: 800 watts
• Impedance: Dual 2 ohm
• Enhanced Pressed Paper Cone
• High Roll Foam Surround
• Mount depth: 6.5"
• Sensitivity: 85 dB

(3)

$149.99

List price $227.99

Specifications & Details


Subwoofer Specifications
Series
Low Profile Reference Series
Subwoofer Size
12"
Peak Power Handling
600 watts
RMS Power Handling
300 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
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
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 (Mounting Depth)
3"
Cutout Diameter
10-1/2"
Shallow Mount Installation
Yes
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

RLP-304

Weight:

11.40lbs

Internal SKU:

rlp304

Internal Product ID:

19606

Product and How-to Videos


  • Shallow Mount MB Quart Reference Subwoofers are your answer to BIG BASS in a tight space!
  • MB Quart Low-Profile Reference Series Subwoofers
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?

Customer Ratings & Reviews


MB Quart RLP-304 thumbnail image

5 star
73%
4 star
13%
3 star
13%
2 star
0%
1 star
0%



Durability
4.4
Value
4.8
Features
4.4
Design
4.3
Usability
4.7

Customer Reviews

Sort by:

Loading...

Solid Product and Great Base

I wanted a slimline sub with some kick to fit behind the seat of my Boxster. This was one of the few that would fit. It has been thumping hard ever since i installed it.

By rdttfc on January 25, 2011

52 found this helpful


Shallow Mount, not shallow sound

Great driver. DVC is wired at 2 ohms, and pushing 300W to it. Made a custom box @ 0.45 cu ft. (interior volume) stuffed with polyfill per MB Quart's recommendation. For a 12 inch shallow that mounts under my passenger seat, it does a fine job on its own. Solid lows, no fatigue in sound and punchy kick drums. Bass guitars sound like bass guitars, not boomy nonsense.

Does it shake my neighbor's house? Only if I'm parked next to it, but that doesn't change the insanity inside my car's cabin that it can create without distortion/clipping. Great addition to my system.

By Boomstick on September 17, 2013

48 found this helpful


MB Quart RLP 304

Great sound, excellent speakers.

By Scott on January 16, 2012

43 found this helpful


MB Quart wins

This is a really great sub that fit my purpose exactly. Its an awesome unit that delivers punchy bass, has a great look yet slim enough to be easily hidden.

By Brett on April 4, 2011

43 found this helpful


Great space saver and gets the job done!

This subwoofer is the best if you don't have a lot space. Rich deep bass and can handle a good amount of power!

By Big Wash on July 19, 2012

41 found this helpful


I love these subs!

I have an extended cab F-250. As some are probably aware, there isn't a ton of room in these trucks.

I built a box to MB Quart's spec..... and these subs do not disappoint in small sealed boxes.

By Jeff G on September 29, 2011

41 found this helpful


small box - big sound

This sub is designed to work in a small closed box and comes through with flying colors! I needed a small box for my boat and did not want to go smaller than 12" . I had a 3/4cuft box made for the sub. Stuffed the box with fiber and had the outside bedlinered.
Sub sounds great!

By silvrtongdvl on July 31, 2013

40 found this helpful


Great Shallow mount!!

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!!

By J.T. on May 5, 2012

40 found this helpful


These subs bump!!

I ordered 4 of these 12in mb quarts which will be going in my 2008 dodge ram pick up. These subs bump, have them wired at 2ohms at 400watts. Surprisingly the hit lows pretty good and the high notes sound awesome. Definitely worth the money and sound better then the alpine type r's I had in my truck. FOR THE LOW PRICE YOU MIGHT AS WELL TRY THEM!

By Cody on September 24, 2013

38 found this helpful


Good value but not the best of speakers

Having the volume air space to fit subs in my truck is a big problem. I custom built the largest sealed enclosure that I could possibly stuff under the back seat and got 0.68 cu. ft. This subwoofer's specs lined up exactly with what I needed and the price is right. I purchased the DVC 2ohm version.

Qualtiy of Construction:
I am not impressed with the materials and quality of the subwoofer but it is not terrible. There was nothing wrong with it but it just feels cheap. I suppose that is why it is so inexpensive.

Sound:
The subwoofer's cone really has to be moving for much sound to be generated. The speaker must be driven hard and it really never gets as loud as it should. Perhaps that is a product of its design for small enclosures at the fact it is a shallow mount type. So, it is better than nothing, but it does not compare to a real, deep mounted 12" subwoofer in low frequency tones.

Buy again?
Maybe but probably not. There really is not another choice with the same features that I could find. I was looking for a shallow mount, DVC, 2 ohm, 12" sub that worked with a tiny box and this is pretty much the only one that I could find for a reasonable cost.

By Spike on December 31, 2009

39 found this helpful




BluSound 1658 small

iSound BluSound iSound-1658

Bluetooth Rechargeable Battery Powered Indoor/Outdoor Portable Speaker

$69.95

List price $89.99

ZN7Y2F small

StreetWires ZN7Y2F

Pair of ZN7 Series (1) Male to (2) Female Y-Connector Cables

(2)

$11.99

List price $34.99

ICBM-9343 BLACK small

Performance Teknique ICBM-9343 BLACK

Universal 7" Black Leather Headrest Monitor Package (Pair)

$99.99

List price $249.99

ZN7V10 small

StreetWires ZN7V10

3.28 ft. (1 meters) of ZN7 Series Video Interconnect Cable

$19.99

List price $29.99

RCA77M-20 small

Tsunami RCA77M-20

20 ft. of 2-Channel Marine RCA Interconnect Cable w/ Triple Shielding

$29.99

List price $36.99

PX3200D small

Planet Audio PX3200D (Factory Refurbished)

1800W RMS Axis Series Class D Monoblock Car Amplifier

(2)

$94.99

List price $299.99

ICBM-2DVD TAN small

Performance Teknique ICBM-2DVD TAN

7" Headrest Monitor Combo w/ Built-in DVD Player & USB/SD Card Reader

$189.99

List price $399.99

SMS-BTWS-SPRT-PNK small

SMS Audio SMS-BTWS-SPRT-PNK (Pink)

SYNC by 50 Cent Wireless Bluetooth On-Ear Sport Headphones (SMS-BTWS-SPRT-PNK)

$229.95

List price $229.95

ICBM-9343 GREY small

Performance Teknique ICBM-9343 GREY

Universal 7" Gray Leather Headrest Monitor Package (Pair)

(2)

$114.99

List price $249.99

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

2011 Ford Expedition

1994 Cadillac DeVille

2001 Ford Expedition

2003 Dodge Viper

2009 Mazda CX-7

1986 Ford E Series

1992 Ford Probe

2009 Dodge Durango

2015 Nissan Juke

2017 Audi A4 Quattro

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.