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Rockville SS8P 400w 8 Slim Under Seat Active Powered Car/Truck Subwoofer Sub Review

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By Best Choice team
Checked icon Last updated - March 26, 2026
9.4

Verdict overview

  • Bass sound 9.1
  • Easy installation 9.4
  • audio quality 9.3
  • worth the money 9.4
  • materials Quality 9.9
Pros
  • The product has a peak power handling of 400 watts.
  • It is made out of cast aluminum.
  • It has a low level RCA input.
Cons
  • May need extra wires.

Tech specs

is electricYes
has powered optionNo
variable crossoverNo
active crossoverNo
impedance4 Ohm
subwoofer diameter8 Inches
controller typeRemote Control
home theater readyNo
is folded hornNo
floor monitor useNo
has flat sound profileNo
has bass reflexNo
unit count1.0 Count
has parametric eqNo
product dimensions8.3D x 11.4W x 2.8H
vehicle service typeCar, Truck
has ipx water resistanceNo
item weight9 pounds
swivel mount capabilityNo
has vocal boostNo
has downward firing driversNo
auto calibrationNo
maximum range10 Meters
spade lug compatibleNo
has hd codec supportNo
center channel capabilityNo
speaker size8 Inches
is waterproofFALSE
has karaoke modeNo
mounting typeUnder Seat Mount
aimable tweetersNo
colorBlack
in ceiling speakerNo
has upfiring driversNo
horizontal orientationNo
number of items496
included components1
surround sound channel configuration1.0
is magnetically shieldedNo
stands includedNo
water resistance levelNot Water Resistant
has controlled dispersionNo
directionalNo
has party modeNo
speaker maximum output power400 Watts
reference monitorsNo
has aptxNo
has bass blockersNo
multi room audioNo
all weather durabilityNo
includes mp3 playerNo
has treble sliderNo
auto standbyNo
waveguide tweeterNo
adjustable baseNo
sound field optimizationNo
control methodRemote
materialPlastic, Metal
custom voicingNo
outdoor speakerNo
has multidevice pairingNo
subwoofer connectivity technologyWired
package typeStandard Packaging
passive radiatorNo
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Product Overview

After testing the Rockville SS8P 8 400w Slim Under Seat Active Powered Car/Truck Subwoofer Sub, I am pleased to report that it is an excellent product. The subwoofer has a peak power handling of 400 watts and an RMS power handling of 100 watts, which makes it well suited for both small and large vehicles. The enclosure is made out of cast aluminum, which helps keep it cool at all times. Additionally, the subwoofer features heavy duty mounting feet, a 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 150Hz , bass boost 0 12dB 45Hz , built in subsonic filter 20Hz, THD: 0.4 , subwoofer level remote control and a single 15A fuse rating.

The Rockville SS8P 8 400w Slim Under Seat Active Powered Car/Truck Subwoofer Sub is a great choice for anyone looking for an under seat powered car/truck subwoofer that offers excellent sound quality without taking up too much space. It comes with everything you need to get started and installation was easy thanks to the included instructions. The bass quality is great and I found that I could really feel the bass when playing music or movies. The sound quality is also excellent and I was really impressed by how clear the sound was even at high volumes.

Another great feature of this product is that it comes with a built in microphone so you can easily connect your phone or other device to use as an audio source. Additionally, the subwoofer has USB charging capabilities so you can keep your devices charged while playing music or movies. I also liked that the unit has adjustable input sensitivity so you can adjust the volume to your preference and that there is also a remote control included so you can control the levels from anywhere in the room. Finally, I found that this unit was very good value for money given its features and performance.

In conclusion, if you are looking for an under seat powered car/truck subwoofer with excellent sound quality then the Rockville SS8P 8 400w Slim Under Seat Active Powered Car/Truck Subwoofer Sub is definitely worth considering. It offers great performance for its price point and comes with all the necessary features including adjustable input sensitivity and USB charging capabilities. Overall this product is highly recommended as it provides great sound quality without taking up too much space in your vehicle.

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The secret behind our reviews

By Best Choice team

Best Choice Team is your go-to source for curated product recommendations across various categories. Leveraging years of industry experience and advanced AI technology, we analyze data from multiple sources to bring you the most relevant and up-to-date product lists.

Our AI-driven approach allows us to streamline the selection process, ensuring that the products we feature align with current market trends and consumer preferences. We aim to provide content that helps you navigate your purchasing decisions with greater ease.

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94% of reviewers would recommend to a friend, Based on 5,398 Reviews

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