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1968 Buick GS 400

Universal loaded and/or powered sub box enclosures that fit most vehicles, including your 1968 GS 400.

Universal Sub Boxes (Loaded/Powered) for 1968 Buick GS 400


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Kicker TL7T122 (46TL7T122)

600W RMS 12” L7T Series Subwoofer Truck Enclosure

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600W RMS 12” L7T Series Subwoofer Truck Enclosure

• 12" Solo-Baric Subwoofer in Thin Profile Enclosure
• RMS: 600W / Peak: 1200W
• Square Sub Design Moves 20% More Air Than Round Subwoofers
• Easily Mounts Under or Behind a Seat
• Advanced internal bracing
• Ribbed Santoprene Surround Resists Heat And Degrading

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

7
Was $379.99 Details
$349.99

In stock

TL7T122 small

Item added to your cart.

Price: $349.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

Add to cart

NVX QBUS8P

300W Peak (150W) RMS 8" Amplified and Loaded Under Seat Quick Bass Universal Subwoofer System with Ported Enclosure

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300W Peak (150W) RMS 8" Amplified and Loaded Under Seat Quick Bass Universal Subwoofer System with Ported Enclosure

• Low Profile Ported Subwoofer System
• 150 Watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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$129.99

In stock

• Low Profile Ported Subwoofer System
• 150 Watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

QBUS8P small

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Price: $129.99

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Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Belva BAK82

Complete 8 Gauge Amplifier Wiring Kit with 2-Channel RCA Cable (CCA Wiring)

$49.99

$29.99

Add to cart
NVX SDTK20

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

$89.99

$59.99

Add to cart
Dynamat Xtreme 20' Trunk Kit 19405

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

$236.95

$149.95

Add to cart
Boom Mat Damping Material (050210)

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

$145.81

$119.99

Add to cart

MTX Audio TNP212D2 Terminator Dual Subwoofer Package + Amplifier

800W Peak (400W RMS) Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included

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800W Peak (400W RMS) Dual 12" Terminator Series Loaded Subwoofer Bass System with Amplifier and Bass Knob Included

• 800W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

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153
Was $319.95 Details
$279.95

In stock

• 800W Peak (2 Subs)
• 400W RMS (2 Subs)
• 48oz. Magnet
• Terminator Series Class D Monoblock Car Amplifier
• Heavy 5/8" MDF Construction
• Black Carpeting

TNP212D2 small

Item added to your cart.

Price: $279.95

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Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Belva BAK82

Complete 8 Gauge Amplifier Wiring Kit with 2-Channel RCA Cable (CCA Wiring)

$49.99

$29.99

Add to cart
NVX SDTK20

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

$89.99

$59.99

Add to cart
Dynamat Xtreme 20' Trunk Kit 19405

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

$236.95

$149.95

Add to cart
Boom Mat Damping Material (050210)

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

$145.81

$119.99

Add to cart

Pioneer TS-WX1210AM

1300W Peak (350W RMS) 12” Ported and Powered Subwoofer Enclosure

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1300W Peak (350W RMS) 12” Ported and Powered Subwoofer Enclosure

• 350 watts Single 12" Subwoofer Enclosure
• 4 ohms Impedance
• Spring-loaded Terminal Posts
• Enclosure Dimensions: 10" TD x 12-1/2" BD x 19-3/4" W x 14-7/8" H

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$169.99

In stock

• 350 watts Single 12" Subwoofer Enclosure
• 4 ohms Impedance
• Spring-loaded Terminal Posts
• Enclosure Dimensions: 10" TD x 12-1/2" BD x 19-3/4" W x 14-7/8" H

TS-WX1210AM small

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Price: $169.99

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Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Belva BAK82

Complete 8 Gauge Amplifier Wiring Kit with 2-Channel RCA Cable (CCA Wiring)

$49.99

$29.99

Add to cart
NVX XBRC

Universal Remote Level Control for Car Amplifier/Amp Bass/Input

$9.99

$6.99

Add to cart
NVX SDTK20

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

$89.99

$59.99

Add to cart
Dynamat Xtreme 20' Trunk Kit 19405

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

$236.95

$149.95

Add to cart
Boom Mat Damping Material (050210)

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

$145.81

$119.99

Add to cart

JL Audio MicroSub CP108LG-W3v3

250 Watt RMS Single 8" 8W3v3-4 Subwoofer Loaded in a Slot-Ported MicroSub Enclosure (4 ohms Final Impedance)

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250 Watt RMS Single 8" 8W3v3-4 Subwoofer Loaded in a Slot-Ported MicroSub Enclosure (4 ohms Final Impedance)

• RMS: 250W Power Handling
• Mineral-Filled Polypropylene Cone
• Single 4 Ohms
• Vented Reinforcement Collar
• Elevated Frame Cooling
• Floating Cone Attach Method (FCAM)

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$399.99

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CP108LG-W3v3 small

Item added to your cart.

Price: $399.99

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Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

Add to cart

Rockford Fosgate Punch P3-2X12

2400W Dual 12" Punch P3 Series Loaded Subwoofer Enclosure

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2400W Dual 12" Punch P3 Series Loaded Subwoofer Enclosure

• Dual Punch P3 12" Loaded Subwoofer Enclosure
• 2400W Peak
• 1200W RMS
• Constructed with Durable 5/8" MDF
• High Current Binding Posts
• Durable Black Carpet Covering
• Computer Optimized Design
• 1 Ohm Final Impedance

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$659.99

In stock

P3-2X12 small

Item added to your cart.

Price: $659.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

Add to cart

Kicker TRTP122 (48TRTP122)

1000W Peak (500W RMS) 12” CompRT Series Thin Profile Subwoofer Enclosure

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1000W Peak (500W RMS) 12” CompRT Series Thin Profile Subwoofer Enclosure

• Sealed downward-firing enclosure with one CompRT 12" subwoofer and passive radiator
• 3/4" medium-density fiberboard construction covered with carpet
• 2-ohm total impedance
• Power Handling: 500 watts RMS (1000 watts peak power)
• Sensitivity: 98 dB
• Frequency Response: 25-500 Hz
• Dimensions: 27-1/2"W x 14-5/8"D x 6-1/8"H

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Was $359.99 Details
$329.99

In stock

TRTP122 small

Item added to your cart.

Price: $329.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

Add to cart

Rockford Fosgate Punch P2-2X12 (11P2-2X12)

1600W Peak Punch P2 Dual 12" P2D4-12 Subwoofer Loaded Enclosure

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1600W Peak Punch P2 Dual 12" P2D4-12 Subwoofer Loaded Enclosure

• Two 12" Punch Series Stage 2 Subwoofers
• Peak Power: 1600W Total
• High Modulus Kevlar Reinforced Paper Cone
• High Temperature 2" 4-Layer Voice Coil
• Single 12" Loaded, Ported Box
• Solid 5/8" MDF Construction

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32
$499.99

In stock

Only 1 Left!

P2-2X12 small

Item added to your cart.

Price: $499.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

Add to cart

Bazooka BT1224DVC

12" Dual 4 ohm Subwoofer Bass Tube

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12" Dual 4 ohm Subwoofer Bass Tube

• 12" Dual 4 ohms Bass Tube Subwoofer
• 600W Peak
• 300W RMS
• Patented Bass Tubes enclosure design
• Fits in most vehicles
• Upgrades any mobile sound system
• Perfect for leased vehicles
• Home audio quality sound in your vehicle

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

16
Was $299.99 Details
$274.99

In stock

• 12" Dual 4 ohms Bass Tube Subwoofer
• 600W Peak
• 300W RMS
• Patented Bass Tubes enclosure design
• Fits in most vehicles
• Upgrades any mobile sound system
• Perfect for leased vehicles
• Home audio quality sound in your vehicle

BT1224DVC small

Item added to your cart.

Price: $274.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

Add to cart

Cerwin Vega VPAS12

600W Max (250W RMS) 12" Under Seat Powered Subwoofer Enclosure

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600W Max (250W RMS) 12" Under Seat Powered Subwoofer Enclosure

• 600 Watts Max / 250 Watts RMS
• Slim Design Allows Mounting Under Vehicle Seat
• High Output Slim Profile Subwoofer
• Cast Aluminum Enclosure
• Subsonic and Low Pass Filters
• Wired Bass Knob Included

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

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Was $319.99 Details
$289.99

In stock.

• 600 Watts Max / 250 Watts RMS
• Slim Design Allows Mounting Under Vehicle Seat
• High Output Slim Profile Subwoofer
• Cast Aluminum Enclosure
• Subsonic and Low Pass Filters
• Wired Bass Knob Included

VPAS12 small

Item added to your cart.

Price: $289.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Belva BAK82

Complete 8 Gauge Amplifier Wiring Kit with 2-Channel RCA Cable (CCA Wiring)

$49.99

$29.99

Add to cart
NVX SDTK20

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

$89.99

$59.99

Add to cart
Dynamat Xtreme 20' Trunk Kit 19405

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

$236.95

$149.95

Add to cart
Boom Mat Damping Material (050210)

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

$145.81

$119.99

Add to cart

Bazooka BT1024DVC

Non-Amplified 10" Ported Subwoofer Bass Tube with Jet Black Paint Finish

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Non-Amplified 10" Ported Subwoofer Bass Tube with Jet Black Paint Finish

• Bazooka Non-Amplified 10" Ported Subwoofer Bass Tube
• Built-in 2" Dual Voice Coil
• Peak Power: 500 Watts
• RMS Power: 250 Watts
• 4 Ohm Impedance
• Nickel-Plated Thumb Screw Terminals
• Jet Black Paint Finish
• Plastic Woofer Grille

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Was $249.99 Details
$214.99

In stock

• Bazooka Non-Amplified 10" Ported Subwoofer Bass Tube
• Built-in 2" Dual Voice Coil
• Peak Power: 500 Watts
• RMS Power: 250 Watts
• 4 Ohm Impedance
• Nickel-Plated Thumb Screw Terminals
• Jet Black Paint Finish
• Plastic Woofer Grille

BT1024DVC small

Item added to your cart.

Price: $214.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

Add to cart

JL Audio CP212-W0v3

Dual 12" 12W0v3-4 BassWedge Loaded Ported Enclosure with Gray Carpet Finish

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Dual 12" 12W0v3-4 BassWedge Loaded Ported Enclosure with Gray Carpet Finish

• Dual 12" 12W0v3-4 Loaded Ported Enclosure
• 1200W Peak
• 600W RMS
• Top-Quality MDF Construction
• Durable Dark Gray Carpet Finish
• Five-Way Binding Post Connectors
• Embroidered JL Audio Logo

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

11
Was $699.99 Details
$499.99

In stock

CP212-W0v3 small

Item added to your cart.

Price: $499.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

Add to cart

JL Audio BassWedge CP112-W0v3

300W RMS 12" W0v3 Series BassWedge Ported Subwoofer System

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300W RMS 12" W0v3 Series BassWedge Ported Subwoofer System

• 600W Peak
• 300W RMS
• Top-Quality MDF Construction
• Durable Dark Gray Carpet Finish
• Five-Way Binding Post Connectors
• Embroidered JL Audio Logo

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

11
$299.99

In stock

CP112-W0v3 small

Item added to your cart.

Price: $299.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

Add to cart
EXCLUSIVE

Belva BPKG212v2 Dual 12" Subwoofer and Amp Package with Box and Wiring Kit

1200W Package Includes: 2 10" Subs, Ported Box, Mono Amplifier with Bass Knob and Amp Kit

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1200W Package Includes: 2 10" Subs, Ported Box, Mono Amplifier with Bass Knob and Amp Kit

• Works with both Factory and Aftermarket Audio Systems
• Dual 12" Belva Subwoofers
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit

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$239.99

In stock

• Works with both Factory and Aftermarket Audio Systems
• Dual 12" Belva Subwoofers
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit

BPKG212v2 small

Item added to your cart.

Price: $239.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX SDTK20

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

$89.99

$59.99

Add to cart
Dynamat Xtreme 20' Trunk Kit 19405

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

$236.95

$149.95

Add to cart
Boom Mat Damping Material (050210)

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

$145.81

$119.99

Add to cart

JL Audio PowerWedge CS112TG-TW3

400W Single 12" TW3 (Thin-Line) PowerWedge Series Sealed Truck Style Subwoofer Enclosure

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400W Single 12" TW3 (Thin-Line) PowerWedge Series Sealed Truck Style Subwoofer Enclosure

• Peak Power Handling: 800W
• RMS Power Handling: 400W
• Dual 4 Ohm Voice Coils
• Sealed Enclosure w/ Black Carpet Finish
• 5/8" MDF Construction

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

1
$549.99

In stock

Only 3 Left!

CS112TG-TW3 small

Item added to your cart.

Price: $549.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

Add to cart

JL Audio BassWedge CP210-W0v3

600W RMS Dual 10" W0v3 BassWedge Series Enclosed Subwoofer System

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600W RMS Dual 10" W0v3 BassWedge Series Enclosed Subwoofer System

•Dual 10" 10W0v3-4 Loaded Ported Enclosure
• 1200W Peak
• 600W RMS
• Top-Quality MDF Construction
• Durable Dark Gray Carpet Finish
• Five-Way Binding Post Connectors
• Embroidered JL Audio Logo

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

6
$399.99

In stock

CP210-W0v3 small

Item added to your cart.

Price: $399.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

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Rockford Fosgate P3-1X12 Punch 12" P3 Loaded Enclosure

1200W Peak (600W RMS) Single P3D2-12 12" Punch P3 Series Loaded and Wired Subwoofer Enclosure

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1200W Peak (600W RMS) Single P3D2-12 12" Punch P3 Series Loaded and Wired Subwoofer Enclosure

• Single Punch P3 12" Loaded Subwoofer Enclosure
• 1200W Peak
• 600W RMS
• Constructed with Durable 5/8" MDF
• High Current Binding Posts
• Durable Black Carpet Covering
• Computer Optimized Design
• 1 Ohm Final Impedance

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

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$379.99

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Price: $379.99

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  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

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NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

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Kicker Comp DC12 (43DC122)

600W Peak (300W RMS) 12" Comp Series Dual Subwoofer Enclosure

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600W Peak (300W RMS) 12" Comp Series Dual Subwoofer Enclosure

• 600W Peak
• 300W RMS
• 2 Ohm Final Impedance
• SoloKon Cone
• Polyfoam Ribbed Surround
• Monogrammed Carbon Fiber Front
• Tough Black Carpeting
• 3/4" MDF Construction

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Comp DC12 small

Item added to your cart.

Price: $299.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
NVX Speaker Wire (XWS1225)

25 ft. of True 12 Gauge EnvyFlex Speaker Cable/Wire (100% Oxygen-Free Copper)

$49.99

$29.99

Add to cart
NVX Sound Dampening Trunk Kit (SDTK20)

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

$89.99

$59.99

Add to cart

MTX Audio RT8PT

Single 8" Road Thunder Subwoofer Loaded Bass Tube Enclosure

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Single 8" Road Thunder Subwoofer Loaded Bass Tube Enclosure

• Single 8" Road Thunder Subwoofer Powered Bass Tube Enclosure
• Polypropylene Woofer Cone
• Built-In Amplifier
• Speaker Level Inputs
• Vented Design
• Aviation Grade Carpet
• Mounting Straps Included
• Gain Rotary Knob

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$169.95

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Only 3 Left!

• Single 8" Road Thunder Subwoofer Powered Bass Tube Enclosure
• Polypropylene Woofer Cone
• Built-In Amplifier
• Speaker Level Inputs
• Vented Design
• Aviation Grade Carpet
• Mounting Straps Included
• Gain Rotary Knob

RT8PT small

Item added to your cart.

Price: $169.95

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Belva BAK82

Complete 8 Gauge Amplifier Wiring Kit with 2-Channel RCA Cable (CCA Wiring)

$49.99

$29.99

Add to cart
NVX SDTK20

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

$89.99

$59.99

Add to cart
Dynamat Xtreme 20' Trunk Kit 19405

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

$236.95

$149.95

Add to cart
Boom Mat Damping Material (050210)

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

$145.81

$119.99

Add to cart
EXCLUSIVE

Belva BPKG110v2 10" Subwoofer and Amp Package with Box and Wiring Kit

Includes: 500W 10" Sub, Ported Box, Mono Amplifier with Bass Knob and Amp Kit

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Includes: 500W 10" Sub, Ported Box, Mono Amplifier with Bass Knob and Amp Kit

• Works with both Factory and Aftermarket Audio Systems
• Single 10" Belva Subwoofer
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit

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Universal Fitment Icon Universal-fit, works with nearly all vehicles.

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Was $259.99 Details
$139.99

In stock

• Works with both Factory and Aftermarket Audio Systems
• Single 10" Belva Subwoofer
• Monoblock Amp with Bass Knob
• Ported Enclosure
• Complete Amp Wiring Kit

BPKG110v2 small

Item added to your cart.

Price: $139.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
Belva BAK82

Complete 8 Gauge Amplifier Wiring Kit with 2-Channel RCA Cable (CCA Wiring)

$49.99

$29.99

Add to cart
NVX SDTK20

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

$89.99

$59.99

Add to cart
Dynamat Xtreme 20' Trunk Kit 19405

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

$236.95

$149.95

Add to cart
Boom Mat Damping Material (050210)

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

$145.81

$119.99

Add to cart

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    FAQ for Universal-fit Loaded Subwoofer Boxes in 1968 GS 400

    Q: Can I upgrade or change the Universal-fit Loaded Subwoofer Boxes in 1968 Buick GS 400?

    A: Yes this page includes all the best Universal-fit Loaded Subwoofer Boxes that work in your GS 400.

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