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  1. Home
  2. MTX Store
  3. Discontinued MTX Car Audio & Electronics
  4. Discontinued MTX Car Subwoofers
  5. Discontinued MTX Custom-fit Subwoofer Boxes
  6. Discontinued MTX MTX Thunderform Boxes

Discontinued MTX MTX Thunderform Boxes

Transform your vehicle's sound with MTX Thunderform Boxes, designed for a perfect fit.

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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.
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.

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".
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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MTX Audio Thunderform F150C04T12-TN (Tan, Loaded) Open Box (Complete)

Custom-Fit Tan Enclosure Loaded with 10" Subwoofer for 2004-2006 Ford F-150 SuperCab

F150C04T12-TN big DISCONTINUED
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MTX Audio Thunderform F150C04T12-TN (Tan, Loaded) Open Box (Complete)

Custom-Fit Tan Enclosure Loaded with 10" Subwoofer for 2004-2006 Ford F-150 SuperCab

• Loaded 12" Subwoofer Enclosure Custom-Fit for 2004-2007 Ford F-150 Pickup
• 400W Max
• 200W RMS
• Polypropylene Woofer Cone
• Rubber Surround
• 28oz. Magnet Structure

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• Loaded 12" Subwoofer Enclosure Custom-Fit for 2004-2007 Ford F-150 Pickup
• 400W Max
• 200W RMS
• Polypropylene Woofer Cone
• Rubber Surround
• 28oz. Magnet Structure

MTX Audio Thunderform JWTJ97T20-TN (Tan, Loaded)

Jeep Wrangler TJ 1997-2006, 2 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

JWTJ97T20-TN big DISCONTINUED
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MTX Audio Thunderform JWTJ97T20-TN (Tan, Loaded)

Jeep Wrangler TJ 1997-2006, 2 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

• Dual 10" Loaded Vehicle Specific Thunderform Subwoofer Enclosure
• 1997-2006 Jeep Wrangler TJ
• Loaded with Terminator Series Subwoofers
• 800W Max
• 400W RMS
• 4 ohm

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• Dual 10" Loaded Vehicle Specific Thunderform Subwoofer Enclosure
• 1997-2006 Jeep Wrangler TJ
• Loaded with Terminator Series Subwoofers
• 800W Max
• 400W RMS
• 4 ohm

MTX Audio Thunderform F150C04C12-TN (Charcoal, Loaded) Open Box (Complete)

Ford F-150 Crew/Ext Cab 2004-2008, 12" 4 ohm Loaded Vehicle Specific Thunderform Subwoofer Enclosure

F150C04C12-TN big DISCONTINUED
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MTX Audio Thunderform F150C04C12-TN (Charcoal, Loaded) Open Box (Complete)

Ford F-150 Crew/Ext Cab 2004-2008, 12" 4 ohm Loaded Vehicle Specific Thunderform Subwoofer Enclosure

• Loaded 12" Subwoofer Enclosure Custom-Fit for 2004-2007 Ford F-150 Pickup
• 400W Max
• 200W RMS
• Polypropylene Woofer Cone • Rubber Surround
• 28oz. Magnet Structure

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• Loaded 12" Subwoofer Enclosure Custom-Fit for 2004-2007 Ford F-150 Pickup
• 400W Max
• 200W RMS
• Polypropylene Woofer Cone • Rubber Surround
• 28oz. Magnet Structure

MTX Audio Thunderform DMAGW05C10U (Charcoal, Unloaded)

Single 10" 2005 Dodge Magnum Unloaded Charcoal Bass Slammer ThunderForm Subwoofer Enclosure Box

DMAGW05C10U big DISCONTINUED
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MTX Audio Thunderform DMAGW05C10U (Charcoal, Unloaded)

Single 10" 2005 Dodge Magnum Unloaded Charcoal Bass Slammer ThunderForm Subwoofer Enclosure Box

• 2005 Dodge Magnum Unloaded Charcoal Single 10" Bass Slammer ThunderForm Subwoofer Enclosure Box
• Mounts In Driver Side Of The Trunk In Vehicle
• Mounting Depth: 6-1/2"
• Cutout Diameter: 9-3/8"
• Box Volume: 0.75 Cu

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2

• 2005 Dodge Magnum Unloaded Charcoal Single 10" Bass Slammer ThunderForm Subwoofer Enclosure Box
• Mounts In Driver Side Of The Trunk In Vehicle
• Mounting Depth: 6-1/2"
• Cutout Diameter: 9-3/8"
• Box Volume: 0.75 Cu

MTX Audio Thunderform DDXP201U (Black, Unloaded)

Dodge Dakota Club Cab 1997-2004 Unloaded Dual 10" Bass Slammer Subwoofer Enclosure

DDXP201U big DISCONTINUED
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MTX Audio Thunderform DDXP201U (Black, Unloaded)

Dodge Dakota Club Cab 1997-2004 Unloaded Dual 10" Bass Slammer Subwoofer Enclosure

• Unloaded Dual 10" Thunder Form Subwoofer Enclosure
• For 1997-2004 Dodge Dakota Club Cab Trucks Vehicles
• Designed For Under Rear Jump Seat
• Box volume: 1.8 cubic feet

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3

• Unloaded Dual 10" Thunder Form Subwoofer Enclosure
• For 1997-2004 Dodge Dakota Club Cab Trucks Vehicles
• Designed For Under Rear Jump Seat
• Box volume: 1.8 cubic feet

MTX JWULP07FB10A-TN

Fits Select 2007-2016 Jeep Wrangler Vehicles - Amplified 10" 200W Loaded Thunderform Subwoofer Enclosure - Black

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MTX JWULP07FB10A-TN

Fits Select 2007-2016 Jeep Wrangler Vehicles - Amplified 10" 200W Loaded Thunderform Subwoofer Enclosure - Black

• 200W Single 10" Sealed Subwoofer Enclosure with Built in Amplifier
• RMS: 200 W Total
• 10" Sealed Vehicle Specific Enclosure
• Preloaded with single 10" Terminator-Series Subwoofer
• Sealed enclosure with factory finish - Black

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• 200W Single 10" Sealed Subwoofer Enclosure with Built in Amplifier
• RMS: 200 W Total
• 10" Sealed Vehicle Specific Enclosure
• Preloaded with single 10" Terminator-Series Subwoofer
• Sealed enclosure with factory finish - Black

MTX Audio Thunderform DRQC20C-T45 (Charcoal, Loaded)

Dodge Ram Quad Cab 2002-2008, 2 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

DRQC20C-T45 big DISCONTINUED
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MTX Audio Thunderform DRQC20C-T45 (Charcoal, Loaded)

Dodge Ram Quad Cab 2002-2008, 2 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

Dual 10" Loaded MTX Thunderform Subwoofer Enclosure • For Dodge Ram Quad Cab 2002-2008 • Loaded with Dual Thunder4500 Subwoofers • 900W Max • 450W RMS • 4 ohm • Carbon filled polypropylene cone

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1

Dual 10" Loaded MTX Thunderform Subwoofer Enclosure • For Dodge Ram Quad Cab 2002-2008 • Loaded with Dual Thunder4500 Subwoofers • 900W Max • 450W RMS • 4 ohm • Carbon filled polypropylene cone

MTX Audio Thunderform DDXP201-T45 (Black, Amplified)

Dodge Durango 1998-2003, Amplified 8" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

DD8A-T45 big DISCONTINUED
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MTX Audio Thunderform DDXP201-T45 (Black, Amplified)

Dodge Durango 1998-2003, Amplified 8" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

• Amplified 8" Ported Vehicle Specific Thunderform Subwoofer Enclosure
• For Dodge Durango 1998-2003
• Loaded with a Thunder4500 Subwoofer
• 300W Max
• 150W RMS
• 4 ohm
• Carbon filled polypropylene cone

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• Amplified 8" Ported Vehicle Specific Thunderform Subwoofer Enclosure
• For Dodge Durango 1998-2003
• Loaded with a Thunder4500 Subwoofer
• 300W Max
• 150W RMS
• 4 ohm
• Carbon filled polypropylene cone

MTX Audio Thunderform FEXST01BK10A-T45 (Black, Amplified)

Ford Explorer Sport Trac 2001-2004, 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

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MTX Audio Thunderform FEXST01BK10A-T45 (Black, Amplified)

Ford Explorer Sport Trac 2001-2004, 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

Single 10" Loaded Amplified MTX Thunderform Subwoofer Enclosure • Ford Explorer Sport Trac 2001-2004 • Loaded with Thunder4500 Subwoofer • 450W Max • 225W RMS • 4 ohm • Carbon filled polypropylene cone

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2

Single 10" Loaded Amplified MTX Thunderform Subwoofer Enclosure • Ford Explorer Sport Trac 2001-2004 • Loaded with Thunder4500 Subwoofer • 450W Max • 225W RMS • 4 ohm • Carbon filled polypropylene cone

MTX Audio Thunderform RMP10G-T45 (Gray, Loaded)

Ford Ranger Regular Cab 1993-1997, 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

RMP10G-T45 big DISCONTINUED
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MTX Audio Thunderform RMP10G-T45 (Gray, Loaded)

Ford Ranger Regular Cab 1993-1997, 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

Single 10" Loaded Vehicle Specific MTX Thunderform Subwoofer Enclosure • For 1993-1997 Ford Ranger Regular Cab • Loaded with Thunder4500 Subwoofer • 450W Max • 225W RMS • 4 ohm • Carbon filled Polypropylene Cone

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Single 10" Loaded Vehicle Specific MTX Thunderform Subwoofer Enclosure • For 1993-1997 Ford Ranger Regular Cab • Loaded with Thunder4500 Subwoofer • 450W Max • 225W RMS • 4 ohm • Carbon filled Polypropylene Cone

MTX Audio Thunderform F250X00C20A-TN (CHARCOAL, AMPLIFIED) (Open Box, Complete)

Ford F-250 Super Cab 2000-2007, Amplified 2 10" 4 ohms Vehicle Specific Thunderform Sub Enclosure

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MTX Audio Thunderform F250X00C20A-TN (CHARCOAL, AMPLIFIED) (Open Box, Complete)

Ford F-250 Super Cab 2000-2007, Amplified 2 10" 4 ohms Vehicle Specific Thunderform Sub Enclosure

• Amplified Dual 10" Loaded MTX Thunderform Sealed Subwoofer Enclosure
• For 2000-2007 Ford F-250 Super Cab
• Loaded with Terminator Series Subwoofers
• 800W Max
• 400W RMS
• 4 ohm

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• Amplified Dual 10" Loaded MTX Thunderform Sealed Subwoofer Enclosure
• For 2000-2007 Ford F-250 Super Cab
• Loaded with Terminator Series Subwoofers
• 800W Max
• 400W RMS
• 4 ohm

10" MTX Subwoofer+Enclosure+Front+Rear Speakers For 2009-15 Ford F-150 Super Cab

Ford F-150 SuperCab 2009-2010, Loaded 10" 4 ohm Subwoofer Enclosure Package

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10" MTX Subwoofer+Enclosure+Front+Rear Speakers For 2009-15 Ford F-150 Super Cab

Ford F-150 SuperCab 2009-2010, Loaded 10" 4 ohm Subwoofer Enclosure Package

• Loaded 10" Subwoofer Enclosure
• Fits in Ford F-150 SuperCab Cab 2009-2010
• 400W Max
• 200W RMS
• Fiberglass Construction
• 1.5" Voice Coil
• 28oz. Magnet
• Enclosure Volume: 1.0 Cubic Ft

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112

• Loaded 10" Subwoofer Enclosure
• Fits in Ford F-150 SuperCab Cab 2009-2010
• 400W Max
• 200W RMS
• Fiberglass Construction
• 1.5" Voice Coil
• 28oz. Magnet
• Enclosure Volume: 1.0 Cubic Ft

MTX Audio Thunderform FMUST05BK12-TN (BLACK, LOADED) (Open Box, Complete)

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

FMUST05BK12-TN big DISCONTINUED
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MTX Audio Thunderform FMUST05BK12-TN (BLACK, LOADED) (Open Box, Complete)

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

• Single 12" Loaded MTX Thunderform Sealed Subwoofer Enclosure
• For 2005-2008 Ford Mustang
• Loaded With a Terminator Series Subwoofer
• 400W Max
• 200W RMS
• 4 ohm

checkmark icon Confirm fitment. Set your vehicle.

• Single 12" Loaded MTX Thunderform Sealed Subwoofer Enclosure
• For 2005-2008 Ford Mustang
• Loaded With a Terminator Series Subwoofer
• 400W Max
• 200W RMS
• 4 ohm

MTX Audio Thunderform DRXP20G-T45 (Gray, Loaded)

Dual Loaded 10" Subwoofer Enclosure for 1994-2001 Dodge Ram Extended Cab

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MTX Audio Thunderform DRXP20G-T45 (Gray, Loaded)

Dual Loaded 10" Subwoofer Enclosure for 1994-2001 Dodge Ram Extended Cab

(GRAY COLOR) Under rear seat on driver side. Bolts to vehicle with supplied hardware • For 1994-2001 Dodge Ram Extended Cab • 10" Thunder Series Subwoofer • 225W Max • 115W RMS • Carbon filled polypropylene cone • 4 ohm impedance

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(GRAY COLOR) Under rear seat on driver side. Bolts to vehicle with supplied hardware • For 1994-2001 Dodge Ram Extended Cab • 10" Thunder Series Subwoofer • 225W Max • 115W RMS • Carbon filled polypropylene cone • 4 ohm impedance

MTX Audio Thunderform JWTJ97T20-T45 (Tan, Loaded)

Jeep Wrangler TJ 1997-2006, 2 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

JWTJ97T20-T45 big DISCONTINUED
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MTX Audio Thunderform JWTJ97T20-T45 (Tan, Loaded)

Jeep Wrangler TJ 1997-2006, 2 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

Dual 10" Loaded Vehicle Specific Thunderform Subwoofer Enclosure • 1997-2006 Jeep Wrangler TJ • Loaded with Thunder4500 Subwoofer • 900W Max • 450W RMS • 4 ohm • Carbon Filled Polypropylene Cone

checkmark icon Confirm fitment. Set your vehicle.

Dual 10" Loaded Vehicle Specific Thunderform Subwoofer Enclosure • 1997-2006 Jeep Wrangler TJ • Loaded with Thunder4500 Subwoofer • 900W Max • 450W RMS • 4 ohm • Carbon Filled Polypropylene Cone

MTX Audio Thunderform FXP16T-T45(Tan, Loaded)

Ford F-150 Extended Cab 1997-2003, 2 8" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

FXP16T-T45 big DISCONTINUED
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MTX Audio Thunderform FXP16T-T45(Tan, Loaded)

Ford F-150 Extended Cab 1997-2003, 2 8" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

• Dual 8" Loaded Vehicle Specific Thunderform Subwoofer Enclosure
• For 1997-2003 Ford F-150 Extended Cab
• Loaded with 8" Thunder4500 Subwoofers
• 600W Max
• 300W RMS
• 4 ohm

checkmark icon Confirm fitment. Set your vehicle.

• Dual 8" Loaded Vehicle Specific Thunderform Subwoofer Enclosure
• For 1997-2003 Ford F-150 Extended Cab
• Loaded with 8" Thunder4500 Subwoofers
• 600W Max
• 300W RMS
• 4 ohm

MTX Audio Thunderform DDXP201-TN (Black, Loaded)- Open Box

Dodge Dakota 1997-2004, 2 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

DDXP201-TN-2 big DISCONTINUED
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MTX Audio Thunderform DDXP201-TN (Black, Loaded)- Open Box

Dodge Dakota 1997-2004, 2 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure

• Loaded Dual 10" Terminator Series Subwoofers Enclosure for 1997-2004 Dodge Dakota Club Cab Trucks
• 800W Max
• 400W RMS
• Polypropylene Cone
• Rubber Surround
• 28oz. Magnet

checkmark icon Confirm fitment. Set your vehicle.

• Loaded Dual 10" Terminator Series Subwoofers Enclosure for 1997-2004 Dodge Dakota Club Cab Trucks
• 800W Max
• 400W RMS
• Polypropylene Cone
• Rubber Surround
• 28oz. Magnet

MTX Audio Thunderform CTYSD07FB10-TN (Black, Loaded)

Chevrolet Tahoe 2007-2010, Loaded 10" 4 ohm Subwoofer Enclosure

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MTX Audio Thunderform CTYSD07FB10-TN (Black, Loaded)

Chevrolet Tahoe 2007-2010, Loaded 10" 4 ohm Subwoofer Enclosure

• Loaded 10" Subwoofer Enclosure
• Fits in Chevrolet Tahoe/Suburban 2007-2010
• 400W Max
• 200W RMS
• Fiberglass Construction
• 1.5" Voice Coil
• 28oz. Magnet
• Enclosure Volume: 0.6 Cubic Ft

checkmark icon Confirm fitment. Set your vehicle.

• Loaded 10" Subwoofer Enclosure
• Fits in Chevrolet Tahoe/Suburban 2007-2010
• 400W Max
• 200W RMS
• Fiberglass Construction
• 1.5" Voice Coil
• 28oz. Magnet
• Enclosure Volume: 0.6 Cubic Ft

MTX Audio Thunderform TTP10AT-TN (Tan, Amplified)

Toyota Tacoma Regular Cab 1996-2004, Amplified 10" 4 ohms Loaded Thunderform Subwoofer Enclosure

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MTX Audio Thunderform TTP10AT-TN (Tan, Amplified)

Toyota Tacoma Regular Cab 1996-2004, Amplified 10" 4 ohms Loaded Thunderform Subwoofer Enclosure

• Amplified 10" Loaded Vehicle Specific MTX Thunderform Sealed Subwoofer Enclosure
• For 1996-2004 Toyota Tacoma Regular Cab
• Loaded with a Terminator Series Subwoofer
• 400W Max
• 200W RMS
• 4 ohm

checkmark icon Confirm fitment. Set your vehicle.

• Amplified 10" Loaded Vehicle Specific MTX Thunderform Sealed Subwoofer Enclosure
• For 1996-2004 Toyota Tacoma Regular Cab
• Loaded with a Terminator Series Subwoofer
• 400W Max
• 200W RMS
• 4 ohm

MTX Audio Thunderform DD8T45 (Black, Loaded)

DD8 Loaded 8" ThunderForm for 1998-2003 Dodge Durango w/ 1 Thunder4500 8" Sub

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MTX Audio Thunderform DD8T45 (Black, Loaded)

DD8 Loaded 8" ThunderForm for 1998-2003 Dodge Durango w/ 1 Thunder4500 8" Sub

• DD8 Loaded 8" ThunderForm for 1998-2003 Dodge Durango with 1 Thunder4500 8" Sub
• Ported enclosure tuned to 34 Hz
• 100W Max
• 50W RMS
• Injection-molded, carbon-filled polypropylene cone woofer
• Rubber surround

checkmark icon Confirm fitment. Set your vehicle.

• DD8 Loaded 8" ThunderForm for 1998-2003 Dodge Durango with 1 Thunder4500 8" Sub
• Ported enclosure tuned to 34 Hz
• 100W Max
• 50W RMS
• Injection-molded, carbon-filled polypropylene cone woofer
• Rubber surround

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