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MB Quart ONX254SQ

400W 10" ONYX Series Dual 4 ohm Square Subwoofer

MB Quart
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• 800W Peak
• 400W RMS
• Dual 4 ohm Voice Coil
• Gloss Black Polypropylene Cone
• NBR Rubber Surround
• Illuminated ONYX logo
• Red Nomex Spider

Learn more about the onx254sq

We apologize

This item has been discontinued

Product Highlights


• 800W Peak
• 400W RMS
• Dual 4 ohm Voice Coil
• Gloss Black Polypropylene Cone
• NBR Rubber Surround
• Illuminated ONYX logo
• Red Nomex Spider

Description


MB Quart brand icon

Authorized dealer

General Features:

  • 10" Dual 4 ohm ONYX Series Square Subwoofer
  • Power Handling:
    • Peak: 800 watts
    • RMS: 400 watts
  • Impedance: Dual 4 ohms
  • Gloss Black Polypropylene Cone
  • NBR Rubber Surround
  • Illuminated ONYX logo
  • Red Nomex Spider
  • Spade Style Speaker Terminals
  • High Energy magnet motor structure
  • Frequency response: 35-150 Hz
  • Resonance Frequency (Fs): 33.73 Hz
  • Top-mount depth: 5-7/16"
  • Sensitivity: 87.7 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Subwoofer Wiring Guide


Wiring Guide to Wire 1 MB Quart ONX254SQ Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 MB Quart ONX254SQ 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 ONX254SQ Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 MB Quart ONX254SQ Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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 ohms
Frequency Response
35 - 150 Hz
Sensitivity
87.7 dB
Xmax (millimeters)
9 mm
Subwoofer Design
Square
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
1.15 cubic feet
Maximum Sealed Box Volume
1.15 cubic feet
Minimum Ported Box Volume
1.30 cubic feet
Maximum Ported Box Volume
1.50 cubic feet
Top-Mount Depth (Mounting Depth)
5-7/16"
Cutout Diameter
9-3/16"
Shallow Mount Installation
No
Electromechanical Parameters
Free-Air Resonance (Fs)
33.73 Hz
Equivalent Compliance (Vas)
75.80 liters
Total Speaker Q Value (Qts)
0.61
Electrical Q Value (Qes)
0.79
Electrical Resistance of Voice Coil (Re)
6.22 ohms
Mechanical Q Value (Qms)
2.68
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

ONX254SQ

Weight:

8.00lbs

Internal SKU:

onx254sq

Internal Product ID:

44473

Product and How-to Videos


Customer Ratings & Reviews



5 star
67%
4 star
33%
3 star
0%
2 star
0%
1 star
0%



Durability
4.7
Value
4.7
Features
5
Design
5
Usability
5

Customer Reviews

Sort by:

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perfect

It's everything I was looking for and it really sounds awesome in my car by far the best set of speakers I've owned

By Jessica on August 29, 2014

28

found this helpful.

looks good, sounds good

Diverse installation possibilities with the DVC's. Lights on the center logo look cool at night when the cone gets moving a lot. Sounds good to me and everyone who hears it. great value.

By Larry on March 11, 2013

20

found this helpful.

Affordable sub that hums!

The MB Quart ONX254SQ 10" square subwoofer is your subwoofer of choice, should you seek a rugged, punchy sub with tight space restrictions. The construction and design of the unit mimics that of the Kicker Solobaric however has a classier look. The rubber surround is what is most impressive to me, allowing for deep excursion, can't be beat. The unit even has an optional 12v input for illuminating the Quart logo on the dust cap, for those that want to get styling!
I have a ONX254SQ installed in the recommend sealed 1.5cf customer enclosure. It is wired by only one of its single DVC's to an MB Quart Formula 240 watt amplifier (bridged mono). The combination of the Quart sub and amp really thumps in my 2009 Mazda 5. For a single 10" subwoofer, the system produces clean, tight and accurate bass that rattles my house windows while I'm in my driveway. Highly recommended for those with smaller vehicles that want the 'boom' to sound like a pair of 12's!

By Brent on September 18, 2013

17

found this helpful.

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