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MB Quart OSC213

5-1/4" 2-Way ONYX Series Component Car Speaker System


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This item has been discontinued

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General Features:

  • 5-1/4" ONYX Series 2-Way Component System
  • Power Handling:
    • Peak: 160 watts per set / 80 watts each side
    • RMS: 80 watts per set / 40 watts each side
  • Polypropylene mid-woofer cone material
  • Butyl Rubber speaker surround
  • 1" Silk Dome surface-mount tweeter design
  • High-temperature voice coil
  • High-energy magnet motor structure
  • Rubber magnet boot cover
  • Composite Speaker grill for aesthetics and protection
  • Low-resonant ABS composite basket reduces noise cancelation
  • Spade style speaker terminals for a quick and easy connection
  • External crossover network with 6 or 12dB/octave tweeter attenuation
  • 4 ohms impedance
  • Frequency Response: 55-32,000 Hz
  • Top-mount Depth: 2-1/4"
  • Sensitivity: 88dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.

Speaker Specifications

This is the manufacturer product line of speakers.
ONYX (MB Quart)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way Component System
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Tweeter Size
Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Butyl Rubber
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
80 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
40 watts
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
88 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
55 - 32000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Bottom-Mount Depth
The depth when installed from the bottom of the mounting surface. Measured from the bottom of the speaker's magnet to the top of the mounting holes on the rim of the speaker.
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
5-5/8" x 5-5/8" 
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Number of Speakers
This is the number of speaker that is included in the package. Each purchase will result in receiving the number of speakers indicated here. Please note that some items will have multiple woofers in the same enclosure. For sets of component speakers, this number will refer to the number of sets of speakers (For example, 2 would indicate the purchase includes 2 woofers and 2 tweeters).

Please refer to the product image and description for further details about the speaker.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


austin tx

great speakers.

January 30, 2015

I have purchased at least 4 pairs of these speakers. The sound incredible. Very crisp highs which I love and enough bass and mids if you are adding a sub.

10 of 15 found this helpful

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Wallingford, CT

Sound great

September 3, 2014

Installed in the kick panel of my 2000 BMW Z3, replacing originals. Easy install, and they sound much better. Handle to volume well from my Kenwood Head Unit.

14 of 24 found this helpful

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Trinidad and Tobago

Excellent value and performance

February 26, 2015

Powered this set with a PPI i520.4 amp and it pairs well with it.

Midrange diameter was a bit small even though it was shown as a 5.25" set. However this thing rocks. Once broken in for about 12 hours, it sounded so much better. Midbass is solid, midrange and highs are clear without being harsh.

Great speaker set for entry level money. Very happy with it.

5 of 9 found this helpful

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livermore California

highly recommended seller.

January 22, 2015

This people very responsible to thier problem any of my order and notified you about shipment..AAA+++

8 of 15 found this helpful

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LA., California

Very good sound!

September 20, 2014

First off, great value. The tweeters look good on the pillars, I was surprised that they pivot inside their mount. The rubberized coating on the frame is a nice touch. Great speaker terminals, packaging was exceptional. I will buy more.

13 of 25 found this helpful

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Wow! Worth every penny

January 15, 2014

Anyone that wants a system in their car needs this. I will buy this again for my other car. Definitely a must.

15 of 29 found this helpful

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phoenix, AZ

awesome !!!

July 8, 2014

purchased and installed 2 sets of MB Quart OSC213, a pair of RE Audio REX8D4, a Soundstream PN2.350D (for 8"s) and PN4.320D (for mids & tweets) controled by a Kenwood KDCBT558U. 8"s are in minimal enclosures(sealed) . this system is in a 2005 Ford f-250 Super Duty Crew Cab. Incredible sound. couldn't believe my ears. WOW!! the REX8D4's feel and sound like more expensive 10"s. i HIGHLY recommend ALL these components,and will use them again on future installs...

14 of 29 found this helpful

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Red Bank

Great Value

September 17, 2013

these are awesome especially for price range. they play well and have a very good range and volume level. LOVE IT.

10 of 21 found this helpful

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Aumsville, OR

good speakers

January 7, 2014

Good highs need better bass, but for the money great sounding speakers.

14 of 30 found this helpful

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Tucson, AZ

Sounds great

September 17, 2013

Sounds great. The crossovers are too small in my opinion. The gauge of the wire too small also.

8 of 21 found this helpful

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Accessory Tools and Products

Accessories added

Belva 23 ft. of True Spec 16 Gauge Speaker Wire

100% Copper Clad Aluminum, PVC blended jacket for easy installation and high strand count for maximum audio quality

Your Price $12.99

16-14 AWG Butt Connectors

These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!

Your Price $4.99

16-14 AWG Quick Disconnect Connectors

These blue quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $7.99

NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

Your Price $14.99

Dynamat Xtreme Speaker Kit 10415

Enough sound dampening for 2 speakers!

Your Price $17.95

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $13.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $16.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $29.99

NVX SDRLR1 Sound Dampening Rubber Roller

Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!

Your Price $7.99

Speaker Baffles for your Speakers

Enhance the sound of your speakers with these easy to install speaker baffles.

Your Price $9.99

5" to 5-1/4" Round Foam Speaker Baffles

Creates a tight, acoustic seal behind the speaker to enhance the sound quality.

Your Price $8.99

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Browse 2 questions and 19 answers
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Why did you choose this?
Sonic Electronix Store
Manufacturer reputation, and affordability
Scott F on Jan 1, 2015
good reviews and I know other people that have bought from Sonicelectronix before and good service and good product.
Kevin F on Dec 22, 2014
good reviews and you are out of the kenwood i would 5.25" excelion that i would normally get
Ian L on Dec 26, 2014
they are going to sound perfect in the old back beast love my 98 740il
jay k on Dec 14, 2014
is this a set? I wanna know if this is coming in a set for my scion tc
Klaus M on Sep 3, 2014
Best Answer: The MB Quart OSC213 comes in a box as a "pair" of speakers with crossover included as well. One mid range speaker which is a 5.25 inch in diameter. And the other speaker is 1 inch diameter high range tweeter. I purchased 2 pairs (boxes) of these for my full size truck. And then a pair (2) of the RE Audio dual voice coil 8 inch diameter sub woofer speakers. The whole system sounds phenomenal !! And I highly recommend all of these products at Sonic Electronix.
Reply · Report · stephen f on Sep 4, 2014
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Product Summary


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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: MB Quart OSC213

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