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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 All Component Car Subwoofers

Discontinued All MB Quart Component Car Subwoofers

Deep, resonating bass in every model of MB Quart's All Component Car Subwoofers.

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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 DW1-304

400W Peak (200W RMS) 12" Dual 4-Ohm Discus Series Car Subwoofer

DW1-304 big DISCONTINUED
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MB Quart DW1-304

400W Peak (200W RMS) 12" Dual 4-Ohm Discus Series Car Subwoofer

•200W RMS
• 400W Max
• Thermal Formed Polypropylene Cone
• UV Rubber Surround
• Stamped Steel Basket
• Top-mount depth: 5-1/2"
• Sensitivity: 88 dB

1

•200W RMS
• 400W Max
• Thermal Formed Polypropylene Cone
• UV Rubber Surround
• Stamped Steel Basket
• Top-mount depth: 5-1/2"
• Sensitivity: 88 dB

MB Quart ONX304

12" Dual 4 ohm ONYX Series Car Subwoofer

ONX304 big DISCONTINUED
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MB Quart ONX304

12" Dual 4 ohm ONYX Series Car Subwoofer

12" ONYX Series Subwoofer • Dual 4 ohm • 800W Max • 400W RMS • Gloss Black Polypropylene Cone • NBR Surround • Spider Woven Tinsel Leads • Illuminated Dust Cap

5

12" ONYX Series Subwoofer • Dual 4 ohm • 800W Max • 400W RMS • Gloss Black Polypropylene Cone • NBR Surround • Spider Woven Tinsel Leads • Illuminated Dust Cap

MB Quart PS1-302

200W 12" Performance Series Dual 2 Ohm Subwoofer

PS1-302 big DISCONTINUED
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MB Quart PS1-302

200W 12" Performance Series Dual 2 Ohm Subwoofer

• 400W Peak
• 200W RMS
• Two Piece Polypropylene Cone
• Nitrile Butadiene Rubber

• 400W Peak
• 200W RMS
• Two Piece Polypropylene Cone
• Nitrile Butadiene Rubber

MB Quart PS2-304

250W 12" Performance Series Dual 4 Ohm Subwoofer

PS2-304 big DISCONTINUED
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MB Quart PS2-304

250W 12" Performance Series Dual 4 Ohm Subwoofer

• 500W Peak
• 250W RMS
• Two Piece Polypropylene Cone
• NBR Surround
• Black Stamped Steel Basket
• Red Progressive Spider

6

• 500W Peak
• 250W RMS
• Two Piece Polypropylene Cone
• NBR Surround
• Black Stamped Steel Basket
• Red Progressive Spider

MB Quart PS1-304

200W 12" Performance Series Dual 4 Ohm Subwoofer

PS1-304 big DISCONTINUED
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MB Quart PS1-304

200W 12" Performance Series Dual 4 Ohm Subwoofer

• 400W Peak
• 200W RMS
• Two Piece Polypropylene Cone
• Nitrile Butadiene Rubber

2

• 400W Peak
• 200W RMS
• Two Piece Polypropylene Cone
• Nitrile Butadiene Rubber

MB Quart ONX302

12" Dual 2 ohm ONYX Series Car Subwoofer

ONX302 big DISCONTINUED
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MB Quart ONX302

12" Dual 2 ohm ONYX Series Car Subwoofer

12" ONYX Series Subwoofer • Dual 2 ohm • 800W Max • 400W RMS • Gloss Black Polypropylene Cone • NBR Surround • Spider Woven Tinsel Leads • Illuminated Dust Cap

4

12" ONYX Series Subwoofer • Dual 2 ohm • 800W Max • 400W RMS • Gloss Black Polypropylene Cone • NBR Surround • Spider Woven Tinsel Leads • Illuminated Dust Cap

MB Quart MS1-254

600W 10" Dual 4-Ohm M-Line Series Shallow Mount Car Subwoofer

MS1-254 big DISCONTINUED
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MB Quart MS1-254

600W 10" Dual 4-Ohm M-Line Series Shallow Mount Car Subwoofer

• 300W RMS
• 600W Max
• Thermal formed PP Cone & Dust Cap
• UV Rubber Surround
• Stamp-Cast Deep Drawn Steel Basket
• 2.50" Copper Voice Coils
• Top-mount depth: 2.95"

1

• 300W RMS
• 600W Max
• Thermal formed PP Cone & Dust Cap
• UV Rubber Surround
• Stamp-Cast Deep Drawn Steel Basket
• 2.50" Copper Voice Coils
• Top-mount depth: 2.95"

MB Quart PS3-302

300W 12" PS3 Series Dual 2 ohm Subwoofer

PS3-302 big DISCONTINUED
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MB Quart PS3-302

300W 12" PS3 Series Dual 2 ohm Subwoofer

• 600W Peak
• 300W RMS
• One Piece Polypropylene Cone
• Nitrile Butadiene Rubber Surround

1

• 600W Peak
• 300W RMS
• One Piece Polypropylene Cone
• Nitrile Butadiene Rubber Surround

MB Quart ONX254SQ

400W 10" ONYX Series Dual 4 ohm Square Subwoofer

ONX254SQ big DISCONTINUED
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MB Quart ONX254SQ

400W 10" ONYX Series Dual 4 ohm Square Subwoofer

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

3

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

(2) MB Quart DS1-304 12" 800W Shallow Mount Car/Truck Subwoofers + 2" Voice Coil

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

DS1-304 2 Pack big DISCONTINUED
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(2) MB Quart DS1-304 12" 800W Shallow Mount Car/Truck Subwoofers + 2" Voice Coil

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

3

• 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

EXCLUSIVE

MB Quart ONX304 Subwoofer Pair Combo

Pair of 12" Dual 4 ohm ONYX Series Car Subwoofers

ONX304-PAIR big DISCONTINUED
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MB Quart ONX304 Subwoofer Pair Combo

Pair of 12" Dual 4 ohm ONYX Series Car Subwoofers

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

1

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

MB Quart PS3-304

300W 12" PS3 Series Dual 4 ohm Subwoofer

PS3-304 big DISCONTINUED
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MB Quart PS3-304

300W 12" PS3 Series Dual 4 ohm Subwoofer

• 600W Peak
• 300W RMS
• One Piece Polypropylene Cone
• Nitrile Butadiene Rubber Surround

1

• 600W Peak
• 300W RMS
• One Piece Polypropylene Cone
• Nitrile Butadiene Rubber Surround

MB Quart NLP254S

10" Single 4 ohm Flat Nautic Marine Subwoofer

NLP254S big DISCONTINUED
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MB Quart NLP254S

10" Single 4 ohm Flat Nautic Marine Subwoofer

10" NLP Marine Series Subwoofer • Impedance: 4 Ohm • Polypropylene Flat Piston Cone • Gold Plated Push Terminals • 3" Voice Coil • 3/4" NBR Rubber Surround • Gold Plated Push Terminals

1

10" NLP Marine Series Subwoofer • Impedance: 4 Ohm • Polypropylene Flat Piston Cone • Gold Plated Push Terminals • 3" Voice Coil • 3/4" NBR Rubber Surround • Gold Plated Push Terminals

EXCLUSIVE

MB Quart RLP-304 Subwoofer Pair Combo

Pair of 12" Dual 4 ohm Low Profile Reference Series Car Subwoofers

RLP-304-PAIR big DISCONTINUED
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MB Quart RLP-304 Subwoofer Pair Combo

Pair of 12" Dual 4 ohm Low Profile Reference Series Car Subwoofers

• 1200W Peak
• 600W RMS
• Injection Molded Polypropylene Cone
• Foam Surround
• Recommended for Sealed Enclosures

17

• 1200W Peak
• 600W RMS
• Injection Molded Polypropylene Cone
• Foam Surround
• Recommended for Sealed Enclosures

MB Quart RWM302

350W 12" Reference Series Dual 2 Ohm Subwoofer

RWM302 big DISCONTINUED
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MB Quart RWM302

350W 12" Reference Series Dual 2 Ohm Subwoofer

• 700W Max
• 350W RMS
• Thermal Formed Polypropylene Cone
• Heavy Duty Deep Drawn Stamped Steel Basket
• Butyl Rubber Surround
• Dual Mirror Image Treated Spider Design
• Heat-Dispersing Vented Pole Plate

1

• 700W Max
• 350W RMS
• Thermal Formed Polypropylene Cone
• Heavy Duty Deep Drawn Stamped Steel Basket
• Butyl Rubber Surround
• Dual Mirror Image Treated Spider Design
• Heat-Dispersing Vented Pole Plate

MB Quart MBPS8152

450W 8” Onyx Series Shallow Powered Subwoofer

MBPS8152 big DISCONTINUED
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MB Quart MBPS8152

450W 8” Onyx Series Shallow Powered Subwoofer

• 8" Onyx Series Low Profile Subwoofer System
• Peak Power: 450 Watts
• Built-In Class AB Amplifier
• Woven Fiber Glass Woofer Cone
• Dimensions: 9.6"W x 13.5"L x 2.7"H

1

• 8" Onyx Series Low Profile Subwoofer System
• Peak Power: 450 Watts
• Built-In Class AB Amplifier
• Woven Fiber Glass Woofer Cone
• Dimensions: 9.6"W x 13.5"L x 2.7"H

4) MB Quart DS1-204 400 Watt 8 Inch Shallow Slim Subs DVC Car Subwoofers Four

400W 8" Discus Series Dual 4-ohm Shallow Mount Car Subwoofer Package

(3) DS1-204,DS1-204 big DISCONTINUED
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4) MB Quart DS1-204 400 Watt 8 Inch Shallow Slim Subs DVC Car Subwoofers Four

400W 8" Discus Series Dual 4-ohm Shallow Mount Car Subwoofer Package

• 200W RMS
• Top-mount depth: 2.80"
• Polypropylene cone and dust cap
• UV Rubber surround
• 2" Dual Voice Coil
• Stamp-cast deep drawn steel basket
• Durable heavy textured powder coat

12

• 200W RMS
• Top-mount depth: 2.80"
• 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 RLP-254 with $30 eGift Card

$30 eGift Card Included! 10" Dual 4 ohm Low-Profile Reference Series Car Subwoofer

RLP-254 Plus eGift Card big DISCONTINUED
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MB Quart RLP-254 with $30 eGift Card

$30 eGift Card Included! 10" Dual 4 ohm Low-Profile Reference Series Car Subwoofer

• FREE $30 Gift Card!
• 600W Peak
• 300W RMS
• Shallow Mount
• Dual 4 Ohm
• Injection Molded Polypropylene Cone
• Foam Surround
• Recommended for Sealed Enclosures

18

• FREE $30 Gift Card!
• 600W Peak
• 300W RMS
• Shallow Mount
• Dual 4 Ohm
• Injection Molded Polypropylene Cone
• Foam Surround
• Recommended for Sealed Enclosures

EXCLUSIVE

MB Quart ONX302 Subwoofer Pair Combo

Pair of 12" Dual 2 ohm ONYX Series Car Subwoofers

ONX302-PAIR big DISCONTINUED
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MB Quart ONX302 Subwoofer Pair Combo

Pair of 12" Dual 2 ohm ONYX Series Car Subwoofers

Pair of 12" ONYX Series Subwoofer • Dual 2 ohm • 800W Max • 800W RMS • Gloss Black Polypropylene Cone • NBR Surround • Spider Woven Tinsel Leads • Illuminated Dust Cap

4

Pair of 12" ONYX Series Subwoofer • Dual 2 ohm • 800W Max • 800W RMS • Gloss Black Polypropylene Cone • NBR Surround • Spider Woven Tinsel Leads • Illuminated Dust Cap

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

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

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    MB Quart All Component Car Subwoofers Information

    MB Quart has been manufacturing highly rated car subwoofers for decades, making them a smart choice for your system. With precision audio, heavy and clear bass, and sleek designs, these subs look and sound amazing. You can't go wrong with MB Quart car subwoofers.
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