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Rockville RW68CA 400w 6x8 Slim Under-Seat Active Powered Car/Truck Subwoofer Sub

$199.95 $99.95
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The RW68CA is the slimmest powered car subwoofer we make and is one of the slimmest car subwoofers in the history of car audio! The height is only 2.8 inches! We utilize an advanced 6x8 inch subwoofer and the enclosure is only 7.68 x 10.24 inches which means their is is almost no wasted space. When you pick up the subwoofer you can immediately feel how solid it is weighing in at just under 10 lbs.

In comparison to our SS8P which is a top rated under seat subwoofer this one sounds almost identical! We did have to make the built in amplifier more powerful to get the same SPL out of it because this one is slimmer. But the end result is a more compact subwoofer with the same great sound!

The reason we developed this product is because we had a couple of returns on our SS8P where customers stated that it was 1-2 inches too large to fit under their seat. We were so upset that we cried for 13 days straight when we had no solution. But now we have a big smile on our faces thanks to the all new RW68CA which is even more compact but has the same great sound!

This is a true all in one subwoofer solution that combines a high quality subwoofer inside a sturdy Aluminum enclosure with the amplifier built in.

We added high level inputs so you can install this to an aftermarket or a factory stereo system.

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 amplifier built into this subwoofer system 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 neater and easier. Our competitor’s models are more challenging to install.

The RW68CA has 400 watts of peak power and 100 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 remote bass knob, and mounting hardware.


  • Rockville RW68CA 6x8" 400w Slim Under-Seat Powered Car Subwoofer
  • Enclosure is made out of cast aluminum which stays cool at all times
  • Peak Power Handling: 400 Watts
  • RMS Power Handling: 100 Watts
  • Our most compact powered subwoofer
  • High Level Inputs with Auto Turn-On Technology
  • Low Pass Filter: 50Hz - 180Hz
  • Bass Boost: 0 - 12dB @ 45Hz
  • Built in Subsonic Filter @ 20Hz
  • Adjustable Input Sensitivity
  • Includes remote bass knob
  • Soft Delayed Remote Turn-On
  • Thermal Protection Circuit, Short Protection Circuit, Overload Protection
  • Heavy Duty Mounting Feet
  • PWM MOSFET Power Supply
  • Low Level RCA Input
  • Green Power/Red Protect LED
  • Phase Switch: 0° or 180°
  • THD: < 0.4%
  • Fuse Rating: 20A
  • Impedance: 4 Ohm
  • Dimensions (L x W x H): 10.24” x 7.68” x 2.83” inches
  • Frequency Response: 20Hz - 180Hz
  • Signal to Noise Ratio: >90dB
  • Sensitivity: 90dB @ 1w / 1m
  • Input sensitivity, Low level: 300mV
  • Input sensitivity, High level: 1.0V"

Owner's Manual​

  • UPC:
  • 819216028742

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.

New orders ship within 1 business day
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