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MB Quart ONX157

5" x 7" / 6" x 8" ONYX Series 2-way Coaxial Speaker System

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List price $139.99

$44.99

with warranty

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Arrives by Tuesday, Oct. 28 to zip 98144

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Hard as Rock Yet Eloquent as Ivory

Speakers are extremely important when it comes to the recreation of high quality sound from CDs, MP3s, radio signals and more. MB Quart engineers built the all new Onyx series speakers from the ground up to be an affordable speaker with the audiophile and performance enthusiast in mind. This series is composed of value-packed 2-way and 3-way speakers that are constructed of the same superior technology in MB Quarts other lines. All Onyx Speakers come elegantly designed with a glossy black piano finish woofer cone and rubber surround. The stamped steel basket touts black high-gloss paint to accent the polypropylene woofer cone and contrasts well with the red progressive cotton spider. Matching these speakers perfectly the line of Onyx Amplifiers shows off the same piano black finish applied to their heatsinks and outer casing. No need to find a match maker, itís already been made.

You wonít find a lack of features at this price point. Onyx series speakers come equipped with 30mm WideSphere titanium dome tweeter with matching piano gloss finish. The piano black polypropylene cone is suspended by a rubber surround that allows rapid movement to hit all notes. The crossover system has been designed to filter out unwanted frequencies and supply the tweeter and midrange with the power they desire. Tweeter attenuation on the crossover allows 0db, -3db and -6db steps so you can tune your system the way your ears want to hear it. Top it off with a black smoked crossover case to continue with the sophisticated theme and you have yourself Onyx series speakers.

General Features:
  • 5" x 7" / 6" x 8" Onyx Series Coaxial Speakers
  • Power Handling:
    • Peak: 240 watts per pair / 120 watts each
    • RMS: 100 watts per pair / 50 watts each
  • Gloss piano black polypropylene cone for accurate sound reproduction
  • Rubber surround adds durability and more linear movement
  • 30mm WideSphere titanium dome tweeters
  • Rugged stamped steel basket complements speaker design
  • Impedance: 4 Ohms
  • Sensitivity: 90 dB
  • Frequency Response: 40 - 32,000 Hz
  • 4 ohms impedance
  • Large magnet structure
  • Includes mounting grille and hardware
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Priced Per Pair

Speaker Specifications

Series
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.
Pair
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.
5" x 7" (also mounts in most 6" x 8" locations)
Design
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
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.
Inverted Dome
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.

Titanium
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.
Polypropylene
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.
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.
120 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.
50 watts
Sensitivity
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".
90 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).
40 - 32,000 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.

No
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.
3-9/64"
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.
2-7/16"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
5" x 7-3/16" 
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.
Yes

Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
50%
4 Star
50%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.5
Value
5.0
Features
4.0
Design
4.5
Usability
5.0
SkidMarc

Bowie, MD

Overall
Durability
Value
Features
Design
Usability
Solid Speaker for the Money

October 30, 2012

I got these speakers for my "budget" system replacing the stock speaker setup in my '02 Forester. I've been building up my system in stages first replacing the head-end with a Kenwood KDC-X596 (excellent!!!). I've since added the MB Quart ONX216 separates for the front and purchased the ONX157s as fill speakers in the rear doors kick panels. As the stock rear speakers are a bit odd 4-1/2 size, it took some significant cutting and fabrication to fit the space. The effort was well worth it. As expected, the ONX157 are a far more efficient than the speakers they replaced. The mid-bass response really rounds out the sound, but I have to admit that I'm a bit surprised at the lack of high end reponse from the 30mm tweeters. I'm sure its location so low and forward in the rear doors don't help. Clarity and detail are impressive for a "budget" 2-way. I'm expecting performance to improve once they break in. I'll be adding an amp (ONX4.60) and an 8" sub to complete the system. I had planned to run the fronts and sub off the amp and continue to run the rears from the receiver (22w), but they may need a bit more power to improve imaging and soundstage. The ONX157 speakers are a solid value-for-money. The construction and build quality are about as good as it gets. The magnet size is considerable and immediately reassures that you've got a quality product. Highly recommended.

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WYOMING

Overall
Durability
Value
Features
Design
Usability
MB QUART ONX 157

November 10, 2010

Great speaker for the money. Definitely an entry level Quart but great sound reproduction non-the-less. I wasn't going for professional level audio just something better than stock. I have a ford pickup and WOW did these speakers wake up that factory deck. I'd say not only a clarity/detail improvement but a Volume level improvement aswell. The only thing they lack is bass but really its a 5x7 what do you expect. (Also I'd like to add the placement and size of cab are not lucrative to good bass. Oh and they are a million times better than the factory speakers.)

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Product Summary

Manufacturer

Model Number

ONX157

UPC

806576216629

Weight

5.50lbs

Internal SKU

onx157

Internal Product ID

23080

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 ONX157