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MTX Audio Thunderform FMUST05BK12A-T45

Ford Mustang 2005-2009, Amplified 12" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

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This item has been discontinued

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MTX Audio Thunderform FMUST05BK12A-TN (Amplified)

OUR PRICE: $549.95

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MTX Audio Thunderform FMUST05BK12A-T45

Ford Mustang 2005-2009, Amplified 12" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure


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Trunk Kit - 20 Square Feet of Sound Dampening Material (Five 18" x 32" Pieces)



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Subwoofer Features:

  • 12" Thunder4500 Subwoofer
  • Subwoofer Power Handling:
    • Peak: 450 watts
    • RMS: 225 watts
  • Impedance: 4 ohms
  • Carbon filled polypropylene cone
  • Polyether foam surround
  • Asymmetrical Linear Drive System (ALDS): flat progressive spider and extended pole piece for smooth, linear, piston like drive
  • Spider Plateau Venting technology, which ensures a cooler, more reliable subwoofer
  • Precision Stamped Basket for greater structural integrity
  • FEA optimized roll geometry to maximize excursion without sacrificing cone surface area
  • Stitched Cone for added durability and style
  • Long Integral Tinsel Leads are woven into the spider for better bass extension with greater durability
  • Voice coils are wound on an Apical voice coil former for high power handling
  • Industry leading thermal power handling using 428˚F High Temperature Voice Coil Wire
  • 1.5" Voice coil
  • 30oz. Strontium Ferrite magnet
  • Frequency response: 35-150 Hz
  • Sensitivity: 90 dB
  • 1-year Manufacturer's warranty

Enclosure Features:

  • Single 12" Sealed Loaded Thunderform Subwoofer Enclosure with built-in Amplifier
  • For 2005-2008 Ford Mustang
  • Fits in both the coupe and the convertible models
  • Will not fit with the Shaker 1000 Sound System
  • Mounts in the trunk on the passenger side
  • Install hardware and grille included
  • Built-in 200 watt Class D Amplifier
  • EBC and wire harness included
  • Made of a high density polyethylene resin, which is flexible enough to transform into a variety of shapes and sizes, yet strong enough to avoid flexing
  • Enclosure volume: 1.2 cubic feet, sealed
  • Molded factory color is Black
  • Dimensions: 14"D x 27"W x 15-1/8"H
Note: Since each MTX Audio Thunderform is custom made to order, it can ship within 2 to 5 business days. When ordering please allow enough time for the manufacturing and shipping of the product.

Product History:

MTX FMUST05BK12A-TN thumbnail
(newest, current model)
MTX FMUST05BK12A-T45 thumbnail
(previous model, replaced by MTX Audio Thunderform FMUST05BK12A-TN (Amplified))

Subwoofer Specifications

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.

Enclosure Specifications

Final Wired Impedance
This is the final impedance of the system as the amplifier will see it. If the final impedance is for two sets, it means that the enclosure has two sets of terminals at the listed impedance.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

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Accessory Tools and Products

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Trunk Kit - 20 Square Feet of Sound Dampening Material (Five 18" x 32" Pieces)

Your Price $53.99

Dynamat Xtreme 20' Trunk Kit 19405

20 ft. Trunk Kit with (5) Dynamat Extreme 18" x 32" Pieces

Your Price $97.97

Boom Mat Damping Material (050210)

20.8 sq.ft Damping Material - (10 pk - 12-1/2" x 24" x 2mm )

Your Price $109.99

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: MTX Audio Thunderform FMUST05BK12A-T45