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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 for your 1999 Altima close

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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Lowest price in 30 days

Powered 10" Subwoofer+Box+Front+Rear Speakers For 2009-2015 Ford F-150 Super Cab

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

F150EX09FB10-TN THUNDER68 MET-725600 big DISCONTINUED
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Powered 10" Subwoofer+Box+Front+Rear Speakers For 2009-2015 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 Altima

109

• 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 JWTJ97T20A-TN (Tan, Amplified) Open Box (Complete)

, Amplified 2 10" 4 ohms Loaded Vehicle Specific Thunderform Sub Enclosure

JWTJ97T20A-TN big DISCONTINUED
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MTX Audio Thunderform JWTJ97T20A-TN (Tan, Amplified) Open Box (Complete)

, Amplified 2 10" 4 ohms Loaded Vehicle Specific Thunderform Sub Enclosure

• Amplified 2 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 Altima

• Amplified 2 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 F150C09FB10A-TN (Black, Amplified) Open Box (Complete)

Amplified & Loaded 10" Subwoofer Enclosure

F150C09FB10A-TN big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX Audio Thunderform F150C09FB10A-TN (Black, Amplified) Open Box (Complete)

Amplified & Loaded 10" Subwoofer Enclosure

• Amplified 10" Subwoofer Enclosure
• Fits in Ford F-150 SuperCrew Cab 2009-2010
• 400W Max
• 200W RMS
• Fiberglass Construction
• Built-in BTL Amplifier
• 28oz. Magnet
• Enclosure Volume: 1.0 Cubic Ft

No Fit Icon Doesn't fit your Altima

4

• Amplified 10" Subwoofer Enclosure
• Fits in Ford F-150 SuperCrew Cab 2009-2010
• 400W Max
• 200W RMS
• Fiberglass Construction
• Built-in BTL Amplifier
• 28oz. Magnet
• Enclosure Volume: 1.0 Cubic Ft

Lowest price in 30 days

10" MTX Subwoofer+Enclosure+(4) Kicker Speakers For 2009-15 Ford F-150 Super Cab

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

No picture DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

10" MTX Subwoofer+Enclosure+(4) Kicker 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 Altima

119

• 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 F150EX09FB10-TN (Black, Loaded) Open Box (Complete)

Loaded 10" 4 ohm Subwoofer Enclosure for

F150EX09FB10-TN big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX Audio Thunderform F150EX09FB10-TN (Black, Loaded) Open Box (Complete)

Loaded 10" 4 ohm Subwoofer Enclosure for

• 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 Altima

1

• 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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