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  1. Home
  2. MB Quart Store
  3. Discontinued MB Quart Car Audio & Electronics
  4. Discontinued MB Quart Car Subwoofers
  5. Discontinued MB Quart 12" Car Subwoofers

Discontinued MB Quart 12" Car Subwoofers for your 2011 Caliber close

For deep, resounding bass, choose MB Quart 12" Car Subwoofers, a sound enthusiast's dream.

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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.
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.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
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 (Mounting 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.
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
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.
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
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".
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
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MB Quart RLP-304, Open Box (Very Good, Used)

300W 12" Reference Series Dual 4 ohm Low-Profile Subwoofer

RLP-304 big DISCONTINUED
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MB Quart RLP-304, Open Box (Very Good, Used)

300W 12" Reference Series Dual 4 ohm Low-Profile Subwoofer

• Item Condition - Very Good, Used
• 600W Peak
• 300W RMS
• Injection Molded Polypropylene Cone
• Foam Surround
• Recommended for Sealed Enclosures

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• Item Condition - Very Good, Used
• 600W Peak
• 300W RMS
• Injection Molded Polypropylene Cone
• Foam Surround
• Recommended for Sealed Enclosures

MB Quart PWM304 - Open Box, Good Condition (Used)

500W 12" Premium Series Dual 4 Ohm Subwoofer Open Box Complete (Good, Used)

PWM304 big DISCONTINUED
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MB Quart PWM304 - Open Box, Good Condition (Used)

500W 12" Premium Series Dual 4 Ohm Subwoofer Open Box Complete (Good, Used)

• 1000W Peak
• 500W RMS
• Carbon Fiber Cone and Dustcap
• UV Resistant Butyl Rubber Surround
• Quick Change Impedance Terminal
• Heat-Dispersing Vented Pole Piece

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• 1000W Peak
• 500W RMS
• Carbon Fiber Cone and Dustcap
• UV Resistant Butyl Rubber Surround
• Quick Change Impedance Terminal
• Heat-Dispersing Vented Pole Piece

(2) Alpine W12S4 BassLine + MB Quart ZA2-1000.1D + Belva BAK42BK

(2) 12" BassLine Subwoofers 1000 Watt Amplifier and 4 Gauge Wiring Kit

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(2) Alpine W12S4 BassLine + MB Quart ZA2-1000.1D + Belva BAK42BK

(2) 12" BassLine Subwoofers 1000 Watt Amplifier and 4 Gauge Wiring Kit

• 750W Max
• 250W RMS
• Polypropylene-Mica cone
• High-excursion poly-foam surround
• High-strength custom steel frame
• Progressive Wavelit Ribs (P.W.R.) cone design

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• 750W Max
• 250W RMS
• Polypropylene-Mica cone
• High-excursion poly-foam surround
• High-strength custom steel frame
• Progressive Wavelit Ribs (P.W.R.) cone design

EXCLUSIVE

MB Quart ONX304SQ Subwoofer Pair Combo

Pair of 12" Dual 4 ohm Square ONYX Series Car Subwoofers

ONX304SQ-PAIR big DISCONTINUED
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MB Quart ONX304SQ Subwoofer Pair Combo

Pair of 12" Dual 4 ohm Square ONYX Series Car Subwoofers

Pair of 12" ONYX Series Square Subwoofers • Dual 4 ohm • 800W Max • 800W RMS • Gloss Black Polypropylene Cone • NBR Surround • Spider Woven Tinsel Leads • Illuminated Dust Cap

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4

Pair of 12" ONYX Series Square Subwoofers • Dual 4 ohm • 800W Max • 800W RMS • Gloss Black Polypropylene Cone • NBR Surround • Spider Woven Tinsel Leads • Illuminated Dust Cap

MB Quart 3-Channel Bundle w/ Two 6x9" Speakers, 12" Subwoofer & Amplifier

MB Quart 4-Channel Onyx Series Class SQ Full Range Amp + 6 x 9" 2-Way Coaxial Speakers + 12" Dual 2 Ohm Sub + 4-Gauge CCA Wiring Kit

OA800.4_ZK1-169_BAK44 big DISCONTINUED
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MB Quart 3-Channel Bundle w/ Two 6x9" Speakers, 12" Subwoofer & Amplifier

MB Quart 4-Channel Onyx Series Class SQ Full Range Amp + 6 x 9" 2-Way Coaxial Speakers + 12" Dual 2 Ohm Sub + 4-Gauge CCA Wiring Kit

• 800W RMS 4-Channel Full-Range Bridgeable Power Amplifier
•6 x 9" Z-Line Series 2-Way Coaxial Car Speakers
• 350W 12" Dual 2 Ohm Subwoofer
• 4 Gauge 4-Channel Amplifier Wiring Kit

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• 800W RMS 4-Channel Full-Range Bridgeable Power Amplifier
•6 x 9" Z-Line Series 2-Way Coaxial Car Speakers
• 350W 12" Dual 2 Ohm Subwoofer
• 4 Gauge 4-Channel Amplifier Wiring Kit

EXCLUSIVE

MB Quart X-Line Amplifier & Subwoofers Package with Premium Amp Wiring Kit

XA1-1000.1D 1000W X-Line Series Class D Amplifier + (2) DW1-304 12" Dual 4-Ohm Discus Series Subwoofer + Kicker 100% OFC Amp Kit

XA1-1000.1D_DW1-304 big DISCONTINUED
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MB Quart X-Line Amplifier & Subwoofers Package with Premium Amp Wiring Kit

XA1-1000.1D 1000W X-Line Series Class D Amplifier + (2) DW1-304 12" Dual 4-Ohm Discus Series Subwoofer + Kicker 100% OFC Amp Kit

• X-Line Series Monoblock Class D Amplifier
• Frequency Response: 10 - 300 Hz
• 12" Dual 4-Ohm Discus Series Subwoofers
• Thermal formed Polypropylene cone and dust cap
• Complete 4 Gauge OFC CK-Series 2-Channel Amplifier Installation Kit

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• X-Line Series Monoblock Class D Amplifier
• Frequency Response: 10 - 300 Hz
• 12" Dual 4-Ohm Discus Series Subwoofers
• Thermal formed Polypropylene cone and dust cap
• Complete 4 Gauge OFC CK-Series 2-Channel Amplifier Installation Kit

MB Quart DS1-304 - Open Box, Good Condition (Used)

400W 12" Discus Series Dual 4-ohm Shallow Mount Car Subwoofer Open Box Complete (Good, Used)

DS1-304 big DISCONTINUED
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MB Quart DS1-304 - Open Box, Good Condition (Used)

400W 12" Discus Series Dual 4-ohm Shallow Mount Car Subwoofer Open Box Complete (Good, Used)

• 200W RMS
• Top-mount depth: 3.07"
• Polypropylene cone and dust cap
• UV Rubber surround
• 2" Dual Voice Coil
• Stamp-cast deep drawn steel basket
• Durable heavy textured powder coat

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• 200W RMS
• Top-mount depth: 3.07"
• Polypropylene cone and dust cap
• UV Rubber surround
• 2" Dual Voice Coil
• Stamp-cast deep drawn steel basket
• Durable heavy textured powder coat

MB Quart 400 Watt 12 Inch Subwoofer + Slim Sub Box Enclosure + Amp + Amp Kit

400W 12" Discus Series Dual 4-ohm Shallow Mount Car Subwoofer Package

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MB Quart 400 Watt 12 Inch Subwoofer + Slim Sub Box Enclosure + Amp + Amp Kit

400W 12" Discus Series Dual 4-ohm Shallow Mount Car Subwoofer Package

• 200W RMS
• Top-mount depth: 3.07"
• Polypropylene cone and dust cap
• UV Rubber surround
• 2" Dual Voice Coil
• Stamp-cast deep drawn steel basket
• Durable heavy textured powder coat

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208

• 200W RMS
• Top-mount depth: 3.07"
• Polypropylene cone and dust cap
• UV Rubber surround
• 2" Dual Voice Coil
• Stamp-cast deep drawn steel basket
• Durable heavy textured powder coat

4) MB Quart DS1-304 1600 Watt 12 Inch Slim Shallow Subwoofers Car/Truck DVC Subs

400W 12" Discus Series Dual 4-ohm Shallow Mount Car Subwoofer Package

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4) MB Quart DS1-304 1600 Watt 12 Inch Slim Shallow Subwoofers Car/Truck DVC Subs

400W 12" Discus Series Dual 4-ohm Shallow Mount Car Subwoofer Package

• 200W RMS
• Top-mount depth: 3.07"
• Polypropylene cone and dust cap
• UV Rubber surround
• 2" Dual Voice Coil
• Stamp-cast deep drawn steel basket
• Durable heavy textured powder coat

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2

• 200W RMS
• Top-mount depth: 3.07"
• Polypropylene cone and dust cap
• UV Rubber surround
• 2" Dual Voice Coil
• Stamp-cast deep drawn steel basket
• Durable heavy textured powder coat

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    MB Quart 12" Car Subwoofers Information

    MB Quart carries a range of 12" car subwoofers for the bass you've been looking for. MB Quart engineers competition grade subwoofers that will both satisfy and last. Great for subwoofer boxes and other installations, these 12" MB Quart subs are an easy choice.
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    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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