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  3. NVX Car Audio & Electronics
  4. NVX Car Subwoofers
  5. NVX Underseat Subwoofers

NVX Underseat Subwoofers for your 1973 DeVille close

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Is Amplifier Wiring Kit included?
Number of Subwoofers
This value represents the number of subwoofers that the enclosure accommodates or that are included in the package or bundled kit.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
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.
Total RMS Power Handling
This is the total RMS power handling of all the subwoofers included in the package or enclosure.

If the loaded enclosure or amplifier and subwoofer package includes more than a single subwoofer, then this is the total RMS power handling for all of the subs combined.

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 giving your subwoofer(s) 75% - 90% of the recommended RMS rating.
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NVX QBUS8P

300W Peak (150W RMS) 8" Under-Seat Powered Car Subwoofer System

QBUS8P big
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NVX QBUS8P

300W Peak (150W RMS) 8" Under-Seat Powered Car Subwoofer System

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
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Universal Icon Universal – fits most vehicles.

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9
List price $191.99
-22% $149.99

In stock

Add to Cart

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

NVX QBUS8P Subwoofer and XKIT82 Amp Kit

NVX 300W Peak 8" Amplified Under Seat Subwoofer System with Ported Enclosure and 8 Gauge 100% OFC 2-Channel Amplifier Wiring Kit with RCA

QBUS8P_XKIT82 big
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NVX QBUS8P Subwoofer and XKIT82 Amp Kit

NVX 300W Peak 8" Amplified Under Seat Subwoofer System with Ported Enclosure and 8 Gauge 100% OFC 2-Channel Amplifier Wiring Kit with RCA

  • NVX QBUS8P 300W Peak 8-Inch Amplified Under Seat Subwoofer System
  • Quick Bass Universal System with Ported Enclosure for Space-Saving Performance
  • XKIT82 8 Gauge 100% Oxygen Free Copper 2-Channel Amplifier Wiring Kit
  • Full Spec OFC Construction Designed for Amplifiers up to 800 Watts
  • Complete Installation Setup Includes RCA Cables and Essential Wiring Hardware
shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

69
List price $287.98
-20% $229.98

In stock

Add to Cart

  • NVX QBUS8P 300W Peak 8-Inch Amplified Under Seat Subwoofer System
  • Quick Bass Universal System with Ported Enclosure for Space-Saving Performance
  • XKIT82 8 Gauge 100% Oxygen Free Copper 2-Channel Amplifier Wiring Kit
  • Full Spec OFC Construction Designed for Amplifiers up to 800 Watts
  • Complete Installation Setup Includes RCA Cables and Essential Wiring Hardware

NVX QBUS10P

500W Peak (200W RMS) 10" Under-Seat Powered Car Subwoofer System

QBUS10P big Out of stock
Go to item page Right Arrow Icon of Right Arrow

NVX QBUS10P

500W Peak (200W RMS) 10" Under-Seat Powered Car Subwoofer System

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

VIP Star Icon

VIP Product Get $20.00 in rewards to spend later

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

38
List price $219.99
-9% $199.99
Notify Me

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

NVX QBUS10P Subwoofer and XKIT82 Amp Kit

500W Peak (200W) RMS 10" Amplified Under Seat Quick Bass Ported Subwoofer System and Full Spec 8 Gauge OFC 2-Channel Amplifier Wiring Kit with RCA

QBUS10P_XKIT82 big Out of stock
Go to item page Right Arrow Icon of Right Arrow

NVX QBUS10P Subwoofer and XKIT82 Amp Kit

500W Peak (200W) RMS 10" Amplified Under Seat Quick Bass Ported Subwoofer System and Full Spec 8 Gauge OFC 2-Channel Amplifier Wiring Kit with RCA

  • NVX QBUS10P 500W Peak 10-Inch Amplified Under Seat Subwoofer System
  • Compact low-profile ported enclosure with built-in 200W RMS amplifier
  • Universal Quick Bass system adds deep low-end to any vehicle
  • XKIT82 8 Gauge 100% Oxygen Free Copper complete wiring kit
  • Full spec installation setup includes 2-channel RCA and hardware

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

98
List price $315.98
-11% $279.98
Notify Me

  • NVX QBUS10P 500W Peak 10-Inch Amplified Under Seat Subwoofer System
  • Compact low-profile ported enclosure with built-in 200W RMS amplifier
  • Universal Quick Bass system adds deep low-end to any vehicle
  • XKIT82 8 Gauge 100% Oxygen Free Copper complete wiring kit
  • Full spec installation setup includes 2-channel RCA and hardware

NVX QBUS10P + Belva BAK82 8 Gauge Amp Kit

500W Peak (200W) RMS 10" Amplified and Loaded Under Seat Quick Bass Universal Subwoofer System with Ported Enclosure

QBUS10P, BAK82 big Out of stock
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NVX QBUS10P + Belva BAK82 8 Gauge Amp Kit

500W Peak (200W) RMS 10" Amplified and Loaded Under Seat Quick Bass Universal Subwoofer System with Ported Enclosure

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

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

135
List price $269.98
-44% $149.99
Add to Cart

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

 
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    1973 Cadillac DeVille

    1996 Toyota Paseo

    2012 Dodge Charger

    2014 Ram Promaster 3500

    2014 Hyundai Genesis

    2017 Kia Rio

    1982 Cadillac Eldorado

    2013 Buick Regal

    2011 Mazda CX-9

    2015 Nissan Frontier

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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