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MB Quart FWA 304S

12" Single 4 ohms Formula Series Subwoofer

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12" Formula Series Subwoofer • 600 Watts Peak • 300 Watts RMS • Single 4 Ohm • Ultra-Rigid Pressed Pulp Cone • High-Excursion Rubber Surround • Woven Spider Tinsel-Leads • High-Energy, Impact Resistant Magnet

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Product Highlights


12" Formula Series Subwoofer • 600 Watts Peak • 300 Watts RMS • Single 4 Ohm • Ultra-Rigid Pressed Pulp Cone • High-Excursion Rubber Surround • Woven Spider Tinsel-Leads • High-Energy, Impact Resistant Magnet

Description


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Authorized dealer

  • 12" Single 4 ohm Formula Series Subwoofer
  • Power Handling:
    • Peak: 600 watts
    • RMS: 300 watts
  • Impedance: 4 ohm
  • Ultra-rigid pressed pulp cone
  • High-excursion rubber surround
  • Woven spider tinsel-leads
  • Black chrome gasket and impact resistant magnet cover add to the overall structural rigidity
  • Fitted with a multi-layer high temperature voice coil
  • High-energy magnet dissipates heat efficiently
  • 16mm Xmax
  • Sensitivity: 87.6 dB
  • 1-year SonicElectronix.com warranty

Subwoofer Wiring Guide


Wiring Guide to Wire 1 MB Quart FWA 304S Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 MB Quart FWA 304S Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 MB Quart FWA 304S Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 MB Quart FWA 304S Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Subwoofer Size
12"
Peak Power Handling
600 watts
RMS Power Handling
300 watts
Voice Coil(s)
Single
Impedance (Per Voice Coil)
4 ohm
Sensitivity
87.6 dB
Xmax (millimeters)
16 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Pressed Pulp
Woofer Surround
Rubber
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
1.0 cubic feet
Maximum Sealed Box Volume
2.0 cubic feet
Minimum Ported Box Volume
1.75 cubic feet
Maximum Ported Box Volume
2.25 cubic feet
Top-Mount Depth (Mounting Depth)
5-7/8"
Cutout Diameter
10-7/8"
Shallow Mount Installation
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

FWA304S

Weight:

8.00lbs

Internal SKU:

fwa304s

Internal Product ID:

19701

Product and How-to Videos


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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.