Garage
Shop

MB Quart ONX304

12" Dual 4 ohm ONYX Series Car Subwoofer

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

12" ONYX Series Subwoofer • Dual 4 ohm • 800W Max • 400W RMS • Gloss Black Polypropylene Cone • NBR Surround • Spider Woven Tinsel Leads • Illuminated Dust Cap

Learn more about the onx304

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

owc304 thumbnail

MB Quart OWC304

OUR PRICE: $39.99

View item

Product Highlights


12" ONYX Series Subwoofer • Dual 4 ohm • 800W Max • 400W RMS • Gloss Black Polypropylene Cone • NBR Surround • Spider Woven Tinsel Leads • Illuminated Dust Cap

Description


MB Quart brand icon

Authorized dealer

The Key to a Complete Onyx Audio System

New for 2011, the ONYX series of subwoofers are now available! These subwoofers are the perfect compliment to a set of MB Quart ONYX speakers and now allow for the installation of a complete ONYX audio system. With a variety of different configurations and sizes, you will be able to find the subwoofer that is right for you. Each feature a high gloss piano black finish and an optional illuminated dust cap. The MB Quart logo on the cone can be illuminated once the optional power/ground wires are connected near the speaker terminals. The finish of the woofers was designed to match that of the speakers and the amplifiers within the ONYX line. Get more bang for your buck with the MB Quart ONYX subwoofers.

  • 12" Dual 4 ohm ONYX Series Subwoofer
  • Power Handling:
    • Peak: 800 watts
    • RMS: 400 watts
  • Impedance: 4 ohm
  • Gloss black polypropylene cone
  • NBR surround
  • Red NOMEX spider woven tinsel leads
  • Spade terminals
  • Illuminated dust cap
  • Black steel frame
  • 2-1/2" Voice coil
  • Frequency response: 25-150 Hz
  • Sensitivity: 85 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Product history:

MB Quart OWC304 thumbnail
(newest, current model)
MB Quart ONX304 thumbnail
(previous model, replaced by MB Quart OWC304)

Subwoofer Wiring Guide


Wiring Guide to Wire 1 MB Quart ONX304 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 MB Quart ONX304 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 ONX304 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 MB Quart ONX304 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
ONYX Series
Subwoofer Size
12"
Peak Power Handling
800 watts
RMS Power Handling
400 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohms
Frequency Response
25 - 150 Hz
Sensitivity
85 dB
Xmax (millimeters)
9 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Polypropylene
Woofer Surround
Nitrile Butadiene Rubber NBR
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
1.25 cubic feet
Maximum Sealed Box Volume
1.25 cubic feet
Minimum Ported Box Volume
1.5 cubic feet
Maximum Ported Box Volume
2.0 cubic feet
Top-Mount Depth (Mounting Depth)
5-3/4"
Cutout Diameter
11"
Shallow Mount Installation
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

ONX304

Weight:

9.65lbs

Internal SKU:

onx304

Internal Product ID:

33010

Product and How-to Videos


Customer Ratings & Reviews



5 star
40%
4 star
0%
3 star
20%
2 star
20%
1 star
20%



Durability
2.8
Value
3.4
Features
3
Design
3.6
Usability
3.4

Customer Reviews

Sort by:

Loading...

Great for the buck.

I just got it and I put it in my box and took out my 12W6 JL older model and this sub sound's great nice bass I have it running by a mono amp MB Quart 1.400 formula so I give it a 5.

By Kevin on July 13, 2011

5

found this helpful.

decent sub for its value

I went on a limb and bought this sub during the Black Friday special. It was for my GF and it was going to be her first subwoofer set-up. I thought this sub will do the job fine being an entry level marketing tag. I had this sub powered with the Kenwood KAC-8105D and the sub ended up failing after 3 months. It was more than likely the amp was rated +100wrms more than the sub itself. I can assure the sub was properly broken in using test tones and minor CD/USB play. The sound quality was there but its nothing close to a bass slammer (ie: Alpine Type-R, Kick Solobaric, etc). I would NOT recommend this sub if you listen to hip-hop. I think it would work well with rock, classics, oldies, alternative, etc. It is NOT a hard hitter. You've been advised.

By Tommy on May 27, 2012

4

found this helpful.

Great Product.

I liked this sub alot so i went and bought another one so i will be running 2 ONX304 i can not wait to get it it is going to pound i recomend buying this sub for that price and can't beat it that is a steal in Canada that sub goes for a couple hundred.

By Kevin on July 16, 2011

3

found this helpful.

Junk

Bought this to replace an MA Audio 12" Dual 4 ohm I had installed. I was hoping this would be better then that MA Audio, but it wasn't. This thing is very over rated for power. The bass is absolutely terrible no matter what kind of music I listen to. Thankfully I got it from here on a price match, that was the only positive I got from this product.

By Coolhand on May 14, 2012

2

found this helpful.

Nice looking sub but...

The sub is very nice looking but it's power handling specifications are seriously over rated. I bought four and i am now returning all of them.

By kee lozz on August 31, 2011

2

found this helpful.

Add-ons


Similar Products

Best selling similar products

Kicker CWR122 (48CWR122)

• Peak Power: 1000 watts
• RMS Power: 500 watts
• Impedance: Dual 2 ohms
• Polypropylene Cone
• Santoprene Rubber Surround
• Mount depth: 5-3/4"
• Sensitivity: 86.9 dB

(6)

$127.96

NVX VCW124 Version 3 (VCW124v3)

• RMS Power: 1200 Watts
• 3” 4-Layer High Temperature Black Aluminum Voice coil
• Carbon Fiber Enhanced Non-Pressed Paper Cone
• Custom High Roll foam surround with black nylon stitching
• 202 oz. Triple stacked High Energy ferrite magnet
• Die Cast aluminum vented basket

(118)

$189.99

JL Audio 12W0v3-4

• RMS Power: 300 watts
• Impedance: Single 4 ohms
• Polypropylene Cone
• Foam Surround
• Mount depth: 5.40"
• Sensitivity: 85.64 dB

(40)

$159.99

Rockford Fosgate Punch P3D4-12

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

(121)

$219.99

JL Audio 12TW3-D4

• RMS Power: 400 watts
• Impedance: Dual 4 ohms
• Mica Injected Polypropylene - MIPP Cone
• Rubber Surround
• Mount depth: 3.5"
• Sensitivity: 84.11 dB

(12)

$499.99

Related Searches


ONX304 small

Item added to your cart.

Price: $34.99

Essential add-ons
Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

$14.99

$6.99

Add to cart
NVX SDTK20

20 Square Feet of Sound Damping Material

$89.99

$59.99

Add to cart
Dynamat Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

$236.95

$149.95

Add to cart
NVX SDRLR1 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

$9.99

$7.99

Add to cart
NVX SDRLR2 Sound Damping Rubber Roller

Universal Professional Heavy Duty Roller for Sound Damping

$11.24

$8.99

Add to cart
Belva BAMMD1

Six Function Digital Multimeter

$14.99

$6.99

Add to cart
Belva BAMMD3

Nine Function Digital Multimeter

$29.99

$9.99

Add to cart
Save up to 10 different vehicles in your garage

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