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MB Quart MS1-304 Open Box Complete

600W 12" Dual 4-Ohm M-Line Series Shallow Mount Car Subwoofer

MB Quart
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• Open Box Complete
• 300W RMS
• 600W Max
• Thermal formed PP Cone & Dust Cap
• UV Rubber Surround
• Stamp-Cast Deep Drawn Steel Basket
• 3" Copper Voice Coils
• Top-mount depth: 3"

Learn more about the ls-ms1304-obc6

We apologize

This item has been discontinued

Description


MB Quart brand icon

Authorized dealer

Item Condition - Open Box, Great:

This product works like new, is well-cared-for and in great condition. May show limited signs of wear or use and may be missing non-essential parts, accessories or original packaging.

  • A part that is fully functional but shows no sign of use outside of installation.

General Features:

  • 12" Dual 4-Ohm M-Line Series Car Subwoofer
  • Power Handling:
    • Peak: 600 watts
    • RMS: 300 watts
  • Thermal formed PP cone & dust cap
  • UV rubber surround
  • Stamp-cast deep drawn steel basket
  • Durable heavy textured powder coat
  • Vented aluminum voice coil formers
  • 3" copper voice coils
  • Edge wound copper wire in DVC configuration
  • Single Stacked Ferrite Magnet
  • Top-mount depth: 3.00"
  • Sensitivity: 86 dB
  • Authorized Internet Dealer
  • 90 Day Manufacturer's Warranty

Subwoofer Wiring Guide


Wiring Guide to Wire 1 MB Quart MS1-304 Open Box Complete Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 MB Quart MS1-304 Open Box Complete Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 MB Quart MS1-304 Open Box Complete Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 MB Quart MS1-304 Open Box Complete Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Subwoofer Size
12"
Peak Power Handling
600 watts
RMS Power Handling
300 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
3"
Sensitivity
86 dB
Xmax (millimeters)
9.0 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Polypropylene
Woofer Surround
Butyl Rubber
Magnet Structure
Single Stacked
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Sealed
Optimum Sealed Box Volume
0.75 cubic feet
Top-Mount Depth (Mounting Depth)
3"
Cutout Diameter
10.59"
Shallow Mount Installation
Yes
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
29.13 Hz
Equivalent Compliance (Vas)
53.98 liters
Total Speaker Q Value (Qts)
0.837
Electrical Q Value (Qes)
0.952
Electrical Resistance of Voice Coil (Re)
7.05 ohm
Mechanical Q Value (Qms)
6.928
Warranty and Return Policy
Parts Warranty Duration
90 days
Labor Warranty Duration
90 days
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

MS1-304 Open Box Complete-2

Weight:

11.50lbs

Internal SKU:

ls-ms1304-obc6

Internal Product ID:

131005

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.