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  1. Home
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  3. Discontinued MB Quart Car Audio & Electronics
  4. Discontinued MB Quart Car Speakers
  5. Discontinued MB Quart 6x8" Speakers

Discontinued MB Quart 6x8" Speakers for your 2011 Nitro close

Larger surface area in MB Quart 6x8" Speakers ensures richer, more robust sound.

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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.
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.
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.
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.
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".
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.
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.
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.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
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You are currently viewing discontinued products.

MB Quart ONX157

240W Peak (100W RMS) 5" x 7" / 6" x 8" ONYX Series 2-way Coaxial Speaker System

ONX157 big DISCONTINUED
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MB Quart ONX157

240W Peak (100W RMS) 5" x 7" / 6" x 8" ONYX Series 2-way Coaxial Speaker System

• RMS: 100 watts Per Pair / 50 watts Each
• Gloss Piano Black Polypropylene Cone
• 30mm WideSphere Titanium Dome Tweeter

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• RMS: 100 watts Per Pair / 50 watts Each
• Gloss Piano Black Polypropylene Cone
• 30mm WideSphere Titanium Dome Tweeter

MB Quart RKM168

6" x 8" / 5" x 7" Reference Series Coaxial Car Audio Speakers

RKM168 big DISCONTINUED
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MB Quart RKM168

6" x 8" / 5" x 7" Reference Series Coaxial Car Audio Speakers

• Peak Power: 110W
• RMS Power: 55W
• 4 Ohm Impedance
• Injection Molded Polypropylene Cone
• 30mm Titanium WideSphere Tweeters
• High Energy Magnet

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• Peak Power: 110W
• RMS Power: 55W
• 4 Ohm Impedance
• Injection Molded Polypropylene Cone
• 30mm Titanium WideSphere Tweeters
• High Energy Magnet

MB Quart PVL 268

6" x 8" / 5" x 7" 2-Way Premium Series Convertible Component Speakers

PVL 268 big DISCONTINUED
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MB Quart PVL 268

6" x 8" / 5" x 7" 2-Way Premium Series Convertible Component Speakers

• Peak Power: 80W
• RMS Power: 40W
• 2-Way Component System
• Polypropylene Cone
• Rubber Surround
• 40mm Silk Dome Tweeter
• Active Crossover with Variable Tweeter Attenuation

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• Peak Power: 80W
• RMS Power: 40W
• 2-Way Component System
• Polypropylene Cone
• Rubber Surround
• 40mm Silk Dome Tweeter
• Active Crossover with Variable Tweeter Attenuation

MB Quart FKB 157

5" x 7" / 6" x 8" 2-Way Formula Series Coaxial Speakers

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MB Quart FKB 157

5" x 7" / 6" x 8" 2-Way Formula Series Coaxial Speakers

• Peak Power: 150W
• RMS Power: 40W
• 2-Way
• Polypropylene Cone
• Butyl Rubber Surround
• 19mm Titanium Dome Tweeter
• Woven Tinsel Leads

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8

• Peak Power: 150W
• RMS Power: 40W
• 2-Way
• Polypropylene Cone
• Butyl Rubber Surround
• 19mm Titanium Dome Tweeter
• Woven Tinsel Leads

MB Quart DKH 168 (DKH168)

6" x 8" 2-way Discus Series Speakers (also mounts in most 5" x 7" locations -- DKH168)

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MB Quart DKH 168 (DKH168)

6" x 8" 2-way Discus Series Speakers (also mounts in most 5" x 7" locations -- DKH168)

6" x 8" 2-Way Discus Series Speaker • 120W Max • 50W RMS • Polypropylene cone woofer • Rubber surround • 1" Titanium "Widesphere" inverted dome tweeter • Built-in crossover (3800 Hz, 6/12 dB/octave)

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6" x 8" 2-Way Discus Series Speaker • 120W Max • 50W RMS • Polypropylene cone woofer • Rubber surround • 1" Titanium "Widesphere" inverted dome tweeter • Built-in crossover (3800 Hz, 6/12 dB/octave)

MB Quart RVF 268 (RVF268)

6" x 8" Reference Series 2-way Component Speakers System (also fits most 5" x 7" locations)

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MB Quart RVF 268 (RVF268)

6" x 8" Reference Series 2-way Component Speakers System (also fits most 5" x 7" locations)

6" x 8" Reference Series 2-way Component System • 90W Max • 40W RMS • Polypropylene oval woofer • .75" Titanium dome tweeters • 12 dB/octave Crossover • Surface mounting rings, grilles and additional mounting accessories included

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6" x 8" Reference Series 2-way Component System • 90W Max • 40W RMS • Polypropylene oval woofer • .75" Titanium dome tweeters • 12 dB/octave Crossover • Surface mounting rings, grilles and additional mounting accessories included

MB Quart FKA 157

5" x 7" 2-way Formula Series Speakers (also mounts in most 6" x 8" locations -- FKA157)

FKA-157 big DISCONTINUED
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MB Quart FKA 157

5" x 7" 2-way Formula Series Speakers (also mounts in most 6" x 8" locations -- FKA157)

5" x 7" Formula Series Car Speakers • 150W Max • 40W RMS • Polypropylene cone woofer • Rubber surround • 3/4" Titanium dome tweeter • Includes installation hardware and mounting templates • 4 ohm impedance

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5" x 7" Formula Series Car Speakers • 150W Max • 40W RMS • Polypropylene cone woofer • Rubber surround • 3/4" Titanium dome tweeter • Includes installation hardware and mounting templates • 4 ohm impedance

MB Quart OKC168

6" x 8" 2-Way ONYX Series Coaxial Car Speakers

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MB Quart OKC168

6" x 8" 2-Way ONYX Series Coaxial Car Speakers

• Peak Power: 80W
• RMS Power: 40W
• 2-Way Coaxial Design
• 4 ohm Impedance
• Polypropylene Cone Material
• Butyl Rubber Surround
• 1" Silk Dome Tweeter

No Fit Icon Doesn't fit your Nitro

2

• Peak Power: 80W
• RMS Power: 40W
• 2-Way Coaxial Design
• 4 ohm Impedance
• Polypropylene Cone Material
• Butyl Rubber Surround
• 1" Silk Dome Tweeter

MB Quart DKG 168 (DKG168)

6" x 8" 2-way Discus Series Speakers (also 5" x 7" mountable)

DKG-168 big DISCONTINUED
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MB Quart DKG 168 (DKG168)

6" x 8" 2-way Discus Series Speakers (also 5" x 7" mountable)

6" x 8" Discus Series 2-way Speakers • 240W Max • 120W RMS • Mineral-infused polypropylene woofer cone • Red tinted damping layer • 1/2" (13mm) pure titanium dome tweeter • Frequency Response: 40 Hz - 32 kHz

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6" x 8" Discus Series 2-way Speakers • 240W Max • 120W RMS • Mineral-infused polypropylene woofer cone • Red tinted damping layer • 1/2" (13mm) pure titanium dome tweeter • Frequency Response: 40 Hz - 32 kHz

MB Quart RCE 268

RCE268 6"x8" / 5"x7" Component System

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MB Quart RCE 268

RCE268 6"x8" / 5"x7" Component System

6" x 8" REFERENCE Series 2-way Component System

6" x 8" REFERENCE Series 2-way Component System

MB Quart PVI 268

6" x 8" 2-way Premium Series Component/Coaxial Convertible Speakers (also mounts in most 5" x 7" locations - PVI268)

PVI-268 big DISCONTINUED
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MB Quart PVI 268

6" x 8" 2-way Premium Series Component/Coaxial Convertible Speakers (also mounts in most 5" x 7" locations - PVI268)

6" x 8" Premium Series 2-Way Car Component Convertible System • 90W Max • 40W RMS • Polypropylene Cone • Rubber Surround • Two-Piece Carbon-Fiber Chassis • 4 ohm • 1" High performance voice coil

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6" x 8" Premium Series 2-Way Car Component Convertible System • 90W Max • 40W RMS • Polypropylene Cone • Rubber Surround • Two-Piece Carbon-Fiber Chassis • 4 ohm • 1" High performance voice coil

MB Quart DKF 168

6" x 8" 2-way Speakers DKF168

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MB Quart DKF 168

6" x 8" 2-way Speakers DKF168

6" x 8" 2-way Speakers DKF168 • RMS Power Handling: 120 watts• Tweeter with a 19mm (0.75") titanium dome • Oval woofers with two-piece oval plastic chassis • Discus crossovers • Frequency Response 40 Hz - 32,000 Hz

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6" x 8" 2-way Speakers DKF168 • RMS Power Handling: 120 watts• Tweeter with a 19mm (0.75") titanium dome • Oval woofers with two-piece oval plastic chassis • Discus crossovers • Frequency Response 40 Hz - 32,000 Hz

Bundle Deal: 2 Pairs of MB Quart RKM168

2 Pairs of 6" x 8" / 5" x 7" Reference Series Coaxial Car Audio Speakers

2_RKM168 big DISCONTINUED
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Bundle Deal: 2 Pairs of MB Quart RKM168

2 Pairs of 6" x 8" / 5" x 7" Reference Series Coaxial Car Audio Speakers

• 2 Pairs Bundle -Peak Power: 110W pair, RMS Power: 55W per pair
• 4 Ohm Impedance
• Injection Molded Polypropylene Cone
• 30mm Titanium WideSphere Tweeters
• High Energy Magnet

No Fit Icon Doesn't fit your Nitro

4

• 2 Pairs Bundle -Peak Power: 110W pair, RMS Power: 55W per pair
• 4 Ohm Impedance
• Injection Molded Polypropylene Cone
• 30mm Titanium WideSphere Tweeters
• High Energy Magnet

EXCLUSIVE

MB Quart ONX 157 + NVX Sound Dampening

5" x 7" / 6" x 8" ONYX Series 2-Way Speakers with Included Sound Dampening!

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MB Quart ONX 157 + NVX Sound Dampening

5" x 7" / 6" x 8" ONYX Series 2-Way Speakers with Included Sound Dampening!

5" x 7" Onyx Series Coaxial Speakers • RMS: 100 Watts Per Pair / 50 Watts Each • Peak: 240 Watts Per Pair / 120 Watts Each • Gloss Piano Black Polypropylene Cone • 30mm WideSphere Titanium Dome Tweeter

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61

5" x 7" Onyx Series Coaxial Speakers • RMS: 100 Watts Per Pair / 50 Watts Each • Peak: 240 Watts Per Pair / 120 Watts Each • Gloss Piano Black Polypropylene Cone • 30mm WideSphere Titanium Dome Tweeter

EXCLUSIVE

800W MB Quart + Alpine Amplified Speaker Combo

MB Quart Onyx Series 4-Channel Amplifier w/ 2 Pairs of Alpine Type-R 6x8" Coaxial Speakers and Amp Wiring Kit

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800W MB Quart + Alpine Amplified Speaker Combo

MB Quart Onyx Series 4-Channel Amplifier w/ 2 Pairs of Alpine Type-R 6x8" Coaxial Speakers and Amp Wiring Kit

• MB Quart OA800.4 4-Channel Onyx Full Range Amplifier
• 100W x 4-Chan. @ 4 ohm, 200W x 4-Chan. @ 2 ohm, 400W x 2 Chan. @ 4 ohm
• 2 Pairs of Alpine SPR-68 6" x 8" Type-R Coaxial Speakers
• Peak Power: 300W, RMS Power: 100W (Each)
• Belva BAK44 Complete 4 Gauge Amplifier Wiring Kit

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• MB Quart OA800.4 4-Channel Onyx Full Range Amplifier
• 100W x 4-Chan. @ 4 ohm, 200W x 4-Chan. @ 2 ohm, 400W x 2 Chan. @ 4 ohm
• 2 Pairs of Alpine SPR-68 6" x 8" Type-R Coaxial Speakers
• Peak Power: 300W, RMS Power: 100W (Each)
• Belva BAK44 Complete 4 Gauge Amplifier Wiring Kit

EXCLUSIVE

MB Quart FKB 157 (2 Pairs)

Two Pairs of 5" x 7" / 6" x 8" 2-Way Formula Series Coaxial Speakers

FKB 157-PAIR big DISCONTINUED
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MB Quart FKB 157 (2 Pairs)

Two Pairs of 5" x 7" / 6" x 8" 2-Way Formula Series Coaxial Speakers

2 Pairs of 5" x 7" / 6" x 8" Formula Series Car Speakers • 2-Way • 150W Max • 40W RMS • Polypropylene Cone • Butyl Rubber Surround • 19mm Titanium Dome Tweeter • Woven Tinsel Leads

No Fit Icon Doesn't fit your Nitro

8

2 Pairs of 5" x 7" / 6" x 8" Formula Series Car Speakers • 2-Way • 150W Max • 40W RMS • Polypropylene Cone • Butyl Rubber Surround • 19mm Titanium Dome Tweeter • Woven Tinsel Leads

MB Quart DKE 168

6" x 8" 2-way Speakers DKE168

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MB Quart DKE 168

6" x 8" 2-way Speakers DKE168

6"x8" 2-Way Coaxial Speaker • 13mm Titanium Dome Tweeter • Polypropylene Cone • Composite Basket • Integrated Tweeter Cooling and Protection • 120W RMS

No Fit Icon Doesn't fit your Nitro

6"x8" 2-Way Coaxial Speaker • 13mm Titanium Dome Tweeter • Polypropylene Cone • Composite Basket • Integrated Tweeter Cooling and Protection • 120W RMS

MB Quart FKB168

200W Peak (100W RMS) 5x7" / 6x8" Formula Series 2-Way 4-ohm Coaxial Car Speakers

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MB Quart FKB168

200W Peak (100W RMS) 5x7" / 6x8" Formula Series 2-Way 4-ohm Coaxial Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• Aluminum Dome tweeters
• Lightweight Thermoformed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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4

• 100 watts Peak Each, 50 watts RMS Each
• Aluminum Dome tweeters
• Lightweight Thermoformed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

MB Quart RK1-168

200W Peak (100W RMS) 5x7" / 6x8" Reference Series 2-Way Coaxial Car Speakers

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MB Quart RK1-168

200W Peak (100W RMS) 5x7" / 6x8" Reference Series 2-Way Coaxial Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• 3/4" Titanium Dome Tweeters
• Bamboo Fiber Cone cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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• 100 watts Peak Each, 50 watts RMS Each
• 3/4" Titanium Dome Tweeters
• Bamboo Fiber Cone cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

 
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    MB Quart 6x8" Speakers Information

    6x8" speakers from MB Quart are an excellent choice for crystal clear music. Replace those factory speakers and quickly notice the difference in the sound and quality of your music and audio. When you are ready for new 6x8" speakers, think of MB Quart.
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    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
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