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

Discontinued MTX Thunderform Boxes for your 2011 A6 close

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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

No Fit Icon Doesn't fit your A6

• 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

No Fit Icon Doesn't fit your A6

• 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

No Fit Icon Doesn't fit your A6

• 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

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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

No Fit Icon Doesn't fit your A6

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• 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

No Fit Icon Doesn't fit your A6

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

No Fit Icon Doesn't fit your A6

• 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

No Fit Icon Doesn't fit your A6

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

No Fit Icon Doesn't fit your A6

• 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

No Fit Icon Doesn't fit your A6

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

No Fit Icon Doesn't fit your A6

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

F250X00C20A-TN big DISCONTINUED
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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

No Fit Icon Doesn't fit your A6

• 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

F150EX09FB10-TN TERMINATOR573 MET-725600 big DISCONTINUED
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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

No Fit Icon Doesn't fit your A6

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• 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

No Fit Icon Doesn't fit your A6

• 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

DRXP20G-T45 big DISCONTINUED
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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

No Fit Icon Doesn't fit your A6

(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

No Fit Icon Doesn't fit your A6

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

No Fit Icon Doesn't fit your A6

• 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

No Fit Icon Doesn't fit your A6

• 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

CTYSD07FB10-TN big DISCONTINUED
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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

No Fit Icon Doesn't fit your A6

• 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

TTP10AT-TN big DISCONTINUED
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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

No Fit Icon Doesn't fit your A6

• 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

DD8-T45 big DISCONTINUED
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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

No Fit Icon Doesn't fit your A6

• 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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    FAQ Frequently asked questions in Discontinued MTX Thunderform Boxes

    MTX Thunderform Boxes Frequently Asked Questions (FAQ)
    MTX Thunderform Boxes are custom-fit enclosures for motorcycle speakers. They are designed to be aerodynamic and stealthy, so they do not disrupt the airflow around your motorcycle. They also come with a built-in amplifier, which makes them a great option for riders who want a powerful and easy-to-install audio system.
    There are many benefits to using MTX Thunderform Boxes, including: Aerodynamic design: MTX Thunderform Boxes are designed to be aerodynamic, so they do not disrupt the airflow around your motorcycle. This can improve fuel economy and make your motorcycle more stable at high speeds. Stealthy design: MTX Thunderform Boxes are designed to be stealthy, so they do not look like they are there. This can make your motorcycle look more streamlined and can help to prevent theft. Integrated amplifier: MTX Thunderform Boxes come with a built-in amplifier, which makes them a great option for riders who want a powerful and easy-to-install audio system. High-quality speakers: MTX Thunderform Boxes come with high-quality speakers that produce excellent sound quality. Durable construction: MTX Thunderform Boxes are made from durable materials that can withstand the elements. Easy installation: MTX Thunderform Boxes are designed to be easy to install. Most models can be installed in minutes using the included hardware.
    There are a few factors to consider when choosing an MTX Thunderform Box, including: The type of motorcycle you have: MTX Thunderform Boxes are made for specific models of motorcycles. Make sure to choose an enclosure that is made for your motorcycle. The type of music you listen to: If you listen to a lot of bass-heavy music, you will need an enclosure with a subwoofer. Your budget: MTX Thunderform Boxes range in price from a few hundred dollars to a few thousand dollars. It is important to set a budget before you start shopping. The warranty: Make sure the enclosure you choose comes with a good warranty. This will protect you in case something goes wrong.
    Installing an MTX Thunderform Box is a relatively simple process, but it is important to follow the manufacturer's instructions carefully. Here are the basic steps involved in installing an MTX Thunderform Box: 1. Choose a location for the enclosure. The enclosure should be located in a place where it is not likely to be damaged by wind or rain. 2. Secure the enclosure in place. The enclosure should be secured in place to prevent it from moving around. 3. Connect the speakers to the enclosure. The speakers should be connected to the enclosure using speaker wire. 4. Connect the enclosure to the motorcycle's electrical system. The enclosure should be connected to the motorcycle's electrical system using a wiring kit. 5. Test the system. Once the system is installed, test it to make sure it is working properly.
    MTX Thunderform Boxes are available at a variety of retailers, including motorcycle audio stores, electronics stores, and online retailers. When choosing a retailer, it is important to make sure that they offer a wide selection of products and that they have a good reputation for customer service.

    All About Discontinued MTX Thunderform Boxes

    MTX takes the cake as the vehicle specific sub box inventors. They provide an awesome and easy bang for your buck and plenty of options to choose from.

    Looking for the best MTX Thunderform Box for your car audio system? Look no further than Sonic Electronix! We offer a wide selection of high-quality MTX Thunderform Boxes that are sure to fit your needs and budget.

    MTX Thunderform Boxes are the perfect way to add bass and power to your car audio system. These enclosures are designed to house a subwoofer and an amplifier, and they can provide a significant boost in sound quality. MTX Thunderform Boxes are made with the highest quality materials and components, and they're backed by MTX's legendary warranty.

    An MTX Thunderform Box is a subwoofer enclosure that is designed to be installed in a car. Thunderform Boxes are typically made from fiberglass or MDF, and they are designed to fit in specific locations in the car, such as the trunk or the rear deck. Thunderform Boxes typically house a subwoofer and an amplifier, and they can provide a significant boost in sound quality for your car audio system.

    Advantages of MTX Thunderform Boxes

    There are many advantages to using MTX Thunderform Boxes. Here are just a few:

    Sound quality: MTX Thunderform Boxes are designed to provide excellent sound quality. The custom-fit design ensures that the subwoofer is positioned in the ideal location for optimal sound reproduction.

    Power: MTX Thunderform Boxes are designed to provide plenty of power for your subwoofer. This means that you can crank up the volume and enjoy your music without sacrificing sound quality.

    Durability: MTX Thunderform Boxes are made with the highest quality materials and components, so they can withstand the rigors of everyday use.

    Warranty: MTX Thunderform Boxes are backed by MTX's legendary warranty. This means that you can be confident that your enclosure will perform for years to come.

    Sonic Electronix is here to help you find the best MTX Thunderform Box for your car audio system. We offer a wide selection of products from the top brands in the industry, and our staff is knowledgeable and experienced. We can help you choose the right enclosure for your budget and your needs, and we can also install it for you.

    If you're looking for the best MTX Thunderform Box, don't hesitate to contact Sonic Electronix. We're here to help you make your car audio system sound its best.

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    Shop your 2011 A6
    Why Use a Vehicle Fit Guide?
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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.

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