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  1. Home
  2. Car Audio & Electronics
  3. Car Subwoofers
  4. Underseat Subwoofers

Underseat Subwoofers

Discover powerful, space-saving bass with our underseat subwoofers. Perfect for trucks, SUVs, and cars with limited space — easy to install and designed for a clean, factory-style look.

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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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Diamond Audio DPUS8

250W Peak (100W RMS) Loaded Single 8" Sealed Amplified Slim Enclosure

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Diamond Audio DPUS8

250W Peak (100W RMS) Loaded Single 8" Sealed Amplified Slim Enclosure

• 8" Amplified Loaded Subwoofer System
• 100 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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$249.99

In stock.

Add to Cart

• 8" Amplified Loaded Subwoofer System
• 100 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Boss Elite SLIM10

1000W Peak (500W RMS) Loaded Single 10" Sealed Amplified Subwoofer Enclosure

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Boss Elite SLIM10

1000W Peak (500W RMS) Loaded Single 10" Sealed Amplified Subwoofer Enclosure

• 10" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class A/B Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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$189.99

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• 10" Amplified Loaded Subwoofer System
• 500 watts RMS
• Built-In Class A/B Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Diamond Audio DPRS10

300W Peak (150W RMS) Loaded Single 10" Sealed Amplified Underseat Enclosure

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Diamond Audio DPRS10

300W Peak (150W RMS) Loaded Single 10" Sealed Amplified Underseat Enclosure

• 10" Amplified Loaded Subwoofer System
• 150 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Input

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$389.99

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• 10" Amplified Loaded Subwoofer System
• 150 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Input

DS18 SQBASS68

600W Peak (150W RMS) 6X8" SQBASS68 Series Amplified Subwoofer

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DS18 SQBASS68

600W Peak (150W RMS) 6X8" SQBASS68 Series Amplified Subwoofer

• 6 X 8" Amplified Loaded 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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$219.95

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• 6 X 8" Amplified Loaded Subwoofer System
• 150 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Diamond Audio DPAS10

300W Peak (150W RMS) Loaded Single 10" Amplified Sealed Subwoofer Enclosure

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Diamond Audio DPAS10

300W Peak (150W RMS) Loaded Single 10" Amplified Sealed Subwoofer Enclosure

• 10" Amplified Loaded 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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$399.99

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• 10" Amplified Loaded 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

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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
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69
List price $287.98
-20% $229.98

In stock

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  • 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

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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

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List price $219.99
-9% $199.99
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• Low Profile Ported Subwoofer System
• 200 Watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Limited time!

Alpine PWE-S8 8" Amplified Subwoofer

120W Compact Powered 8" Car Subwoofer for Under or Behind the Seat

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Alpine PWE-S8 8" Amplified Subwoofer

120W Compact Powered 8" Car Subwoofer for Under or Behind the Seat

• 8" Amplified Loaded Subwoofer System
• 120 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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List price $480.00
Save $130.06
-27% $349.94
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Used from: $279.97

• 8" Amplified Loaded Subwoofer System
• 120 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Diamond Audio DPUS10

400W Peak (200W RMS) Loaded Single 10" Sealed Underseat Enclosure with Bass Remote

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Diamond Audio DPUS10

400W Peak (200W RMS) Loaded Single 10" Sealed Underseat Enclosure with Bass Remote

• 10" Amplified Loaded 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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VIP Product Get $44.00 in rewards to spend later

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$439.99
Add to Cart

• 10" Amplified Loaded 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
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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
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98
List price $315.98
-11% $279.98
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  • 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
Lowest price in 30 days

Alpine PWE-S8 8" Amplified Subwoofer with Amplifier Wiring Kit

120W Compact Powered 8" Loaded Subwoofer Enclosure for Under or Behind the Seat

PWES8_BAK82 big Out of stock
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Alpine PWE-S8 8" Amplified Subwoofer with Amplifier Wiring Kit

120W Compact Powered 8" Loaded Subwoofer Enclosure for Under or Behind the Seat

• Peak: 240 watts
• RMS: 120 watts
• 8" Woofer High-Excursion cone
• Built-in Class D Amplifier
• Frequency Response: 32-150 Hz
• Includes Belva 8 Gauge Amplifier Wiring Kit

Save 15% Off Package Deals at Checkout!
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100
List price $529.99
-34% $349.94
Add to Cart

• Peak: 240 watts
• RMS: 120 watts
• 8" Woofer High-Excursion cone
• Built-in Class D Amplifier
• Frequency Response: 32-150 Hz
• Includes Belva 8 Gauge Amplifier Wiring Kit

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

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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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