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Rockville WHEEL OF BASS 8" Slim Under-Seat Powered Truck/Car Audio Subwoofer Sub

$249.99 $99.95
(You save $150.04)
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The WHEEL OF BASS by Rockville is an all in one solution to give you great sounding bass in your vehicle without taking up a lot of space. This sub enclosure is only 3.15" tall so it can easily fit under your seat. The WHEEL OF BASS has enough power where you can mount it in your trunk and it will still give you nice clean bass with enough power to get just the right amount of thumpiness.

The amplifier is built in, so installation and wiring is clean and simple. This is a true all in one subwoofer solution with the subwoofer built into the enclosure along with a top of the line amplifier built in as well.

We added high level inputs so you can install this to an aftermarket or factory system. The high level input allows you to install this even if you have no preamp outputs available.

The smart turn-on circuit will sense that an audio signal is present and turn on the amplifier. When you turn off your music signal the sub will automatically turn itself off. Something else we did to make installation quick and easy is we put all the inputs and outputs on one side. This makes wiring easier and neater.

The WHEEL OF BASS has 500 watts of peak power and 125 watts RMS. This has great controls so you can adjust the sound to your liking. It has a level control for the volume and subsonic filter to filter out the really low frequencies which the human ear cannot hear. This also has a low pass crossover filter, phase control, input sensitivity, and bass boost.

Included is a metal remote bass knob, and mounting.

The WHEEL OF BASS looks really cool and sounds equally good mounted under your seat or in your trunk. If you are looking for a compact bass solution in your vehicle then the WHEEL OF BASS by Rockville is the right product for you!


  • Rockville WHEEL OF BASS 8" 500w Slim Under-Seat or Trunk Mounted Powered Car Subwoofer
  • Enclosure is very shallow at only 3.15” tall so it can fit anywhere
  • You can fit it under seat but it also sounds great and takes up little space in your trunk
  • Enclosure is made out of solid cast aluminum
  • Peak Power Handling: 500 Watts
  • RMS Power Handling: 125 Watts
  • Heavy Duty Mounting Feet
  • PWM MOSFET Power Supply
  • Low Level RCA Input
  • High Level Inputs with Auto Turn-On Technology
  • Adjustable Input Sensitivity
  • Soft Delayed Remote Turn-On
  • Thermal Protection Circuit, Short Protection Circuit
  • Overload Protection Circuit
  • Green Power/Red Protect LED
  • Phase Switch: 0° or 180°
  • Low Pass Filter: 50Hz - 180Hz
  • Bass Boost: 0 - 12dB @ 45Hz
  • Built in Subsonic Filter @ 20Hz
  • THD: < 0.5%
  • Subwoofer Level Remote Control
  • Fuse Rating: Single 15A


  • Impedance: 4 Ohm
  • Dimensions (D x H): 9.68” x 3.15 Inches
  • Frequency Response: 20Hz - 180Hz
  • Signal to Noise Ratio: >90dB
  • Sensitivity: 90dB @ 1w / 1m<
  • Input sensitivity: Low level: 200mV
  • Input sensitivity: High level: 0.5

  • UPC:
  • 819216028490

WARNING: Cancer and Reproductive Harm —

Car Subwoofer Impedance Wiring Guide

Use our car subwoofer and amp wiring diagrams to figure out which amplifier is compatible with your subwoofer(s) and how to wire it properly.

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