Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In
  1. Home
  2. MTX Store
  3. Discontinued MTX Car Audio & Electronics
  4. Discontinued MTX Car Subwoofers
  5. Discontinued MTX Car Subwoofer Boxes
  6. Discontinued MTX Car Subwoofers with a Box (Loaded Sub Boxes)
  7. Discontinued MTX Sealed Enclosure Boxes with Car Subwoofers

Discontinued MTX Sealed Enclosure Boxes with Car Subwoofers

Accurate and tight bass with MTX's Sealed Enclosure Boxes with Car Subwoofers.

Filters
MTX ✕
Clear Filters
Reset Done
Product Type
Price Range
Number of Subwoofers
This value represents the number of subwoofers that the enclosure accommodates or that are included in the package or bundled kit.
Box Type
Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
Box Style/Shape
The box style or shape refers to the actual shape of the box. Square and rectangular boxes are straight-edged boxes on all sides, whereas hatchback and truck style enclosures feature an angled front or back design that allows for installation in places short on depth such as single cab pickup trucks. You can also use such enclosures in hatchback cars or other vehicles where space is a premium. Tube and cylinder shaped boxes were made popular by Bazooka and are a great option for those looking for a nice amount of bass without sacrificing lots of space. They may even fit in locations that slim truck boxes cannot fit in. If the enclosure is vehicle specific, we encourage you to read the product description to find out which vehicles the enclosure is made for.
Deals
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
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.
Condition

Shop the Category

filter-icon Filters & Sort
You are currently viewing discontinued products.

Magnum MB212P by MTX Audio

Dual 12" Loaded Sealed Magnum Subwoofer Enclosure with 1000W Max Magnum Amplifier (By MTX) - MB212P

MB212P big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Magnum MB212P by MTX Audio

Dual 12" Loaded Sealed Magnum Subwoofer Enclosure with 1000W Max Magnum Amplifier (By MTX) - MB212P

Dual 12" Loaded Sealed Magnum Subwoofer Enclosure with 1000W Max Magnum Amplifier (By MTX) • 1000 watts Max • Variable Bass EQ • Preamp RCA outputs • Thermal, Overload, and Short protection • 5/8" MDF Construction

2

Dual 12" Loaded Sealed Magnum Subwoofer Enclosure with 1000W Max Magnum Amplifier (By MTX) • 1000 watts Max • Variable Bass EQ • Preamp RCA outputs • Thermal, Overload, and Short protection • 5/8" MDF Construction

MTX TNE212D Open Box Complete

800 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass Enclosure

TNE212D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX TNE212D Open Box Complete

800 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass Enclosure

• Open Box Complete
• 800W Peak
• 400W RMS
• 48oz. Magnet
• Heavy 5/8" MDF Construction
• Black Carpeting

• Open Box Complete
• 800W Peak
• 400W RMS
• 48oz. Magnet
• Heavy 5/8" MDF Construction
• Black Carpeting

MTX Audio TNE212D Terminator Dual Subwoofer Package Open Box (Complete)

1200 Watt Dual 12" Terminator Series Loaded Subwoofer Bass Enclosure

TNE212D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX Audio TNE212D Terminator Dual Subwoofer Package Open Box (Complete)

1200 Watt Dual 12" Terminator Series Loaded Subwoofer Bass Enclosure

• 800W Peak
• 400W RMS
• 48oz. Magnet
• Heavy 5/8" MDF Construction
• Black Carpeting

• 800W Peak
• 400W RMS
• 48oz. Magnet
• Heavy 5/8" MDF Construction
• Black Carpeting

MTX Audio XThunder Link XT110P

200W Max, 10" Universal Fit Amplified Subwoofer Enclosure System and Passive Radiatior - 4 ohms

XT110P big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX Audio XThunder Link XT110P

200W Max, 10" Universal Fit Amplified Subwoofer Enclosure System and Passive Radiatior - 4 ohms

10" Universal Fit Amplified Subwoofer Enclosure System with Passive Radiator • 200 watts Max • 100 watts RMS • 4 Ohm • Built-in 200 watt amplifier • Hi-inputs • RCA Inputs • Tuned Bass EQ • Variable Crossover • Black

1

10" Universal Fit Amplified Subwoofer Enclosure System with Passive Radiator • 200 watts Max • 100 watts RMS • 4 Ohm • Built-in 200 watt amplifier • Hi-inputs • RCA Inputs • Tuned Bass EQ • Variable Crossover • Black

MTX Audio TS5512D

1200W Max, Single 12" Thunder Square TS55 Series Vented Loaded Enclosure - 2 ohms Final Imedance

TS5512D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX Audio TS5512D

1200W Max, Single 12" Thunder Square TS55 Series Vented Loaded Enclosure - 2 ohms Final Imedance

Single 12" Thunder Square Series Vented Loaded Enclosure • 1200 watts Max • 600 watts RMS • 2 ohm • Polypropylene Cone Woofer • Rubber Surround • Asymmetrical Linear Drive System • 1.75" Voice Coil • Side Firing Ported Enclosure

2

Single 12" Thunder Square Series Vented Loaded Enclosure • 1200 watts Max • 600 watts RMS • 2 ohm • Polypropylene Cone Woofer • Rubber Surround • Asymmetrical Linear Drive System • 1.75" Voice Coil • Side Firing Ported Enclosure

MTX Audio Terminator Dual Subwoofer Package + Amplifier (TNP212D2) (OPEN BOX)

1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included

LS-TNP212D2-OB big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX Audio Terminator Dual Subwoofer Package + Amplifier (TNP212D2) (OPEN BOX)

1200 Watt Max Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

Promo Savings Icon

• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

MTX TNP212D2 New, Damaged Packaging Only

TNP212D2 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX TNP212D2 New, Damaged Packaging Only

• Item Condition: Open Box
• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

• Item Condition: Open Box
• 1200W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

MTX Audio TR5510X2D

1200W Max, Dual 10" Thunder Round TR55 Series Vented Loaded Enclosure - 2 ohms Final Impedance

TR5510X2D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX Audio TR5510X2D

1200W Max, Dual 10" Thunder Round TR55 Series Vented Loaded Enclosure - 2 ohms Final Impedance

Dual 10" Thunder Round Series Vented Loaded Enclosure • 1200 watts Max • 600 watts RMS • 2 Ohm • Polypropylene Cone • Stitched NBR Surround • 1.75" Voice Coil • Side Firing Slot Port • 8 gauge terminals • MDF construction

1

Dual 10" Thunder Round Series Vented Loaded Enclosure • 1200 watts Max • 600 watts RMS • 2 Ohm • Polypropylene Cone • Stitched NBR Surround • 1.75" Voice Coil • Side Firing Slot Port • 8 gauge terminals • MDF construction

MTX TR5512a

12" 800 Watt Vented Enclosure

TR5512a big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX TR5512a

12" 800 Watt Vented Enclosure

Single 12" TR Series Vented Loaded Subwoofer Enclosure • Peak: 800 watts • RMS: 400 watts • Final Impedance: 4 ohm •

2

Single 12" TR Series Vented Loaded Subwoofer Enclosure • Peak: 800 watts • RMS: 400 watts • Final Impedance: 4 ohm •

MTX Audio Thunder Link XTL210P

400W Max, 10" Universal Fit Amplified Subwoofer Enclosure System with Passive Radiatior - 4 ohms

XTL210P big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX Audio Thunder Link XTL210P

400W Max, 10" Universal Fit Amplified Subwoofer Enclosure System with Passive Radiatior - 4 ohms

10" Universal Fit Amplified Subwoofer Enclosure System with Passive Radiator • 400 watts Max • 200 watts RMS • 2 Ohm • Paper-Laminated Cone • Built-In 200 watt Amplifier • Wired Remote Bass • Adjustable Mounting

1

10" Universal Fit Amplified Subwoofer Enclosure System with Passive Radiator • 400 watts Max • 200 watts RMS • 2 Ohm • Paper-Laminated Cone • Built-In 200 watt Amplifier • Wired Remote Bass • Adjustable Mounting

EXCLUSIVE

2000W Complete Kenwood + MTX Bass Package

MTX JH600 Amp + 2 Kenwood KFC-W2512 Woofers With 4 Gauge Amp Kit and Box

JH600_2-KFC-W2512 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

2000W Complete Kenwood + MTX Bass Package

MTX JH600 Amp + 2 Kenwood KFC-W2512 Woofers With 4 Gauge Amp Kit and Box

Bass package: MTX JH600 Amp + 2 Kenwood KFCW2512 Woofers + 4 AWG Kit + Sealed Enclosure • CEA-2006 Compliant • Includes Everything You Need To Add Bass To Your Car

2

Bass package: MTX JH600 Amp + 2 Kenwood KFCW2512 Woofers + 4 AWG Kit + Sealed Enclosure • CEA-2006 Compliant • Includes Everything You Need To Add Bass To Your Car

MTX TNP112D Open Box

(Open Box) Single 12" Loaded and Amplified Enclosed Subwoofer System

TNP112D-OB big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX TNP112D Open Box

(Open Box) Single 12" Loaded and Amplified Enclosed Subwoofer System

Single Loaded Subwoofer Enclosure with Amplifier • Loaded with One Terminator Series Subwoofer • 600 Watts Max • 200 Watts RMS • Single 4 ohm • 2" Aluminum Voice Coil • Vented Enclosure • Sturdy 5/8" MDF Carpeted Black

Single Loaded Subwoofer Enclosure with Amplifier • Loaded with One Terminator Series Subwoofer • 600 Watts Max • 200 Watts RMS • Single 4 ohm • 2" Aluminum Voice Coil • Vented Enclosure • Sturdy 5/8" MDF Carpeted Black

MTX Audio TNP212D Combo with JH300 Amplifier Upgrade

Dual 12" Loaded and Amplified Subwoofer Enclosure System

TNP212D-JH300 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX Audio TNP212D Combo with JH300 Amplifier Upgrade

Dual 12" Loaded and Amplified Subwoofer Enclosure System

Amplified and Loaded Dual 12" Enclosed Subwoofer System • 1200W Max (2 Subs) • 400W RMS (2 Subs) • 48oz. Magnet • Jackhammer Series Class D Monoblock Car Amplifier • Smart engage auto turn-on circuitry

2

Amplified and Loaded Dual 12" Enclosed Subwoofer System • 1200W Max (2 Subs) • 400W RMS (2 Subs) • 48oz. Magnet • Jackhammer Series Class D Monoblock Car Amplifier • Smart engage auto turn-on circuitry

MTX ThunderForm RMP101 10" (Tan Model - RMP101T)

RMP101T big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX ThunderForm RMP101 10" (Tan Model - RMP101T)

10" ThunderForm for FORD RANGER 1998-2004 • 225 watts RMS power handling • One 10" subwoofer • FOR TAN INTERIOR RANGERS AND B SERIES TRUCKS (1998-2004)

10" ThunderForm for FORD RANGER 1998-2004 • 225 watts RMS power handling • One 10" subwoofer • FOR TAN INTERIOR RANGERS AND B SERIES TRUCKS (1998-2004)

MTX ThunderForm CS10 (Charcoal Model - CS10C)

CS10C big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX ThunderForm CS10 (Charcoal Model - CS10C)

CHEVROLET SUBURBAN 1992-2000 ThunderForm • Also fits GMC Yukon, Chevy full-size Blazer, Chevy Tahoe and '88-'98 regular and extended cab Chevy trucks with bucket seats • CHARCOAL COLOR - for charcoal interior vehicles

CHEVROLET SUBURBAN 1992-2000 ThunderForm • Also fits GMC Yukon, Chevy full-size Blazer, Chevy Tahoe and '88-'98 regular and extended cab Chevy trucks with bucket seats • CHARCOAL COLOR - for charcoal interior vehicles

EXCLUSIVE

1800W Complete MTX Audio + Alpine Bass Package

MTX Audio Thunder Elite TE601D Amplifier + Alpine SWR-1243D 12" Sub + 4 Gauge Amp Kit + Sealed Box

TE601D-RB_SWR-1243D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

1800W Complete MTX Audio + Alpine Bass Package

MTX Audio Thunder Elite TE601D Amplifier + Alpine SWR-1243D 12" Sub + 4 Gauge Amp Kit + Sealed Box

Bass Package: MTX Audio TE601D Monoblock Amplifier + Alpine SWR-1243D 12" Subwoofer + Raptor 4 Gauge Amp Kit + Absolute Single 12" Sub Enclosure • Includes Everything You Need To Add Bass To Your Car

Bass Package: MTX Audio TE601D Monoblock Amplifier + Alpine SWR-1243D 12" Subwoofer + Raptor 4 Gauge Amp Kit + Absolute Single 12" Sub Enclosure • Includes Everything You Need To Add Bass To Your Car

MTX Audio TNP212D Combo with JH300 Amplifier Upgrade Open Box

(Open Box) Dual 12" Loaded and Amplified Subwoofer Enclosure System

TNP212D-JH300 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX Audio TNP212D Combo with JH300 Amplifier Upgrade Open Box

(Open Box) Dual 12" Loaded and Amplified Subwoofer Enclosure System

Amplified and Loaded Dual 12" Enclosed Subwoofer System • 1200W Max (2 Subs) • 400W RMS (2 Subs) • 48oz. Magnet • Jackhammer Series Class D Monoblock Car Amplifier • Smart engage auto turn-on circuitry

Amplified and Loaded Dual 12" Enclosed Subwoofer System • 1200W Max (2 Subs) • 400W RMS (2 Subs) • 48oz. Magnet • Jackhammer Series Class D Monoblock Car Amplifier • Smart engage auto turn-on circuitry

MTX ThunderForm CS10 (Tan Model - CS10T)

CS10T big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX ThunderForm CS10 (Tan Model - CS10T)

CHEVROLET SUBURBAN 1992-2000 ThunderForm • Also fits GMC Yukon, Chevy full-size Blazer, Chevy Tahoe and '88-'98 regular and extended cab Chevy trucks with bucket seats • TAN COLOR - for charcoal interior vehicles

CHEVROLET SUBURBAN 1992-2000 ThunderForm • Also fits GMC Yukon, Chevy full-size Blazer, Chevy Tahoe and '88-'98 regular and extended cab Chevy trucks with bucket seats • TAN COLOR - for charcoal interior vehicles

EXCLUSIVE

2400W Complete MTX Audio + Kenwood Bass Package

MTX Audio TE601-RB Class D Amplifier + 2 Kenwood KFC-W3012 Subs + 4 Gauge Amp Kit + 12" Sealed Box

TE601D-RB_2-KFC-W3012 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

2400W Complete MTX Audio + Kenwood Bass Package

MTX Audio TE601-RB Class D Amplifier + 2 Kenwood KFC-W3012 Subs + 4 Gauge Amp Kit + 12" Sealed Box

Bass Package: MTX AudioTE601 Amplifier + 2 Kenwood KFCW3012 Woofers + 4 Gauge Amp Kit + Sealed Subwoofer Box • 2400W Max • Includes Everything You Need To Add Bass To Your Car

Bass Package: MTX AudioTE601 Amplifier + 2 Kenwood KFCW3012 Woofers + 4 Gauge Amp Kit + Sealed Subwoofer Box • 2400W Max • Includes Everything You Need To Add Bass To Your Car

MTX ThunderForm TTP10A Amplified 10" (Gray Model - TTP10AG)

TTP10A big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX ThunderForm TTP10A Amplified 10" (Gray Model - TTP10AG)

10" ThunderForm for TOYOTA TACOMA 1996-2003 • 225 watts RMS power handling • One 10" subwoofer • FOR GRAY INTERIOR TACOMAS (WILL WORK OF COURSE WITH OTHERS)

10" ThunderForm for TOYOTA TACOMA 1996-2003 • 225 watts RMS power handling • One 10" subwoofer • FOR GRAY INTERIOR TACOMAS (WILL WORK OF COURSE WITH OTHERS)

1 2 Next

Items per page: 20 40 60

    Clear all

    MTX Sealed Enclosure Boxes with Car Subwoofers Information

    MTX sealed and loaded car sub boxes are a great choice for many vehicles. With simple installation and true sub-bass performance, these boxes are sure to turn some heads. MTX speakers inside sealed and loaded sub boxes will bring the bass you are looking for.
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage

    Add vehicle
    2 | Make
    3 | Model
    Why Use a Vehicle Fit Guide?
    Where to find vehicle info | Shop without vehicle
    Whoa! Slow down. Add your details below!
    additional information required
    Add vehicle details to confirm fitment
    Ignore fitment details
    Find stereos and more that work -- fast.
    2 | Make
    3 | Model
    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon
    Back

    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.

    Back
    Track your order
    Call our experts
    Support Center
    Return & Exchanges
    Follow on Instagram Instagram logo
    Subscribe on YouTube YouTube logo