Garage
Shop

See all parts that fit your 1994 XJS

MB Quart ONX254

10" Dual 4 ohm ONYX Series Car Subwoofer

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

10" 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 onx254

Good news and a little bad...

This item has been discontinued

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

owc254 thumbnail

MB Quart OWC254

OUR PRICE: $34.99

View item

Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

254
-33.36%

$79.96

List price $119.99

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

214
-9.16%

$109.00

List price $119.99

43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

72
-10.53%

$84.99

List price $94.99

GX608C main

JBL GX608C (GX608CAM)

420W Peak (140W RMS) 6.5” GX Series 2 Way 2.3-ohm Component Speaker System

7
NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99

Reference 6530CX main

Infinity Reference REF-6530cx (REF6530CXAM)

540W Peak (180W RMS) 6.5" Reference Series 2 Way 3-ohm Component Speaker System

14
-56.40%

$108.99

List price $249.95

XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers

15
-16.67%

$49.99

List price $59.99

REF6532IXAM main

Infinity Reference REF6532IXAM

360W Peak (120W RMS) 6.5" Reference Series 2 Way Coaxial 3-ohm Speakers

22
-20.01%

$119.95

List price $149.95

MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

Product Highlights


10" 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.

  • 10" 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 style speaker terminals
  • Illuminated dust cap
  • Anti-resonant ABS magnet cover
  • High energy magnet
  • Heat-dispersing vented pole plate
  • Black steel frame
  • 2-1/2" Voice coil
  • Frequency response: 35-150 Hz
  • Sensitivity: 88 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Product history:

MB Quart OWC254 thumbnail
(newest, current model)
MB Quart ONX254 thumbnail
(previous model, replaced by MB Quart OWC254)

Subwoofer Wiring Guide


Wiring Guide to Wire 1 MB Quart ONX254 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 MB Quart ONX254 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 ONX254 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 MB Quart ONX254 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


Best selling similar products

SQW104 small

NVX SQW104

• Peak Power: 1200 watts
• RMS Power: 600 watts
• Impedance: Dual 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 3.23"
• Sensitivity: 83 dB

$249.99

List price $299.99

10W0v3-4 small

JL Audio 10W0v3-4

• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Mount depth: 4.90"
• Sensitivity: 84.07 dB

(89)

$139.99

List price $139.99

10TW3-D4 small

JL Audio 10TW3-D4

• RMS Power: 400 watts
• Polymer/Mica Composite Cone
• Rubber Surround
• Impedance: Dual 4 ohm
• Mount depth: 3.25"
• Sensitivity: 82.10 dB

(29)

$519.99

List price $519.99

Specifications & Details


Subwoofer Specifications
Series
ONYX Series
Subwoofer Size
10"
Peak Power Handling
800 watts
RMS Power Handling
400 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Frequency Response
35 - 150 Hz
Sensitivity
88 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 cubic feet
Maximum Sealed Box Volume
1 cubic feet
Minimum Ported Box Volume
1 cubic feet
Maximum Ported Box Volume
1.25 cubic feet
Top-Mount Depth (Mounting Depth)
5"
Cutout Diameter
9-1/8"
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:

ONX254

Weight:

7.16lbs

Internal SKU:

onx254

Internal Product ID:

33011

Product and How-to Videos


Customer Ratings & Reviews


MB Quart ONX254 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

great sub

i have one of these subs hooked up to 400rms and it thumps hard

By Zurinis on April 11, 2013

5 found this helpful




FPR10-02 small

MTX Audio 10" Shallow Mount Subwoofer (FPR10-02)

600W Peak (300W RMS) 10" Thunder Series Flat Piston / Shallow Mount Single 2-Ohm Subwoofer

(4)

$179.95

List price $219.99

Related Searches


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

2005 Nissan Frontier

1994 Jaguar XJS

1984 Porsche 928 S

1998 Ford Ranger

1994 Dodge Grand Caravan

2017 Buick Encore

1995 Volkswagen Golf

1985 Alfa Romeo Spider

2018 Lincoln Continental

2017 Acura TLX

Vehicle
Store
Delete

2007 Harley Davidson FXD Dyna Super Glide

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.