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Rockville SS8P 400 Watt Slim Under Seat Powered Car/Truck Subwoofer Sub Amp Kit Review

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By Best Choice team
Checked icon Last updated - April 15, 2026
9.6

Verdict overview

  • Easy installation 9.6
  • audio quality 9.4
  • worth the money 9.6
  • materials Quality 9.8
Pros
  • Compact design fits under seats easily.
  • Delivers powerful bass enhancement.
  • Simple installation with included kit.

Tech specs

is electricYes
has powered optionYes
colorBlack
impedance2 Ohm
subwoofer diameter8 Inches
controller typeRemote Control
number of items1
surround sound channel configuration2.0
water resistance levelNot Water Resistant
speaker maximum output power400 Watts
unit count1 Count
product dimensions11D x 14.1W x 5.4H
item weight11 pounds
control methodRemote
center channel capabilityNo
speaker size2.8 Inches
subwoofer connectivity technologyWired
is waterproofFALSE
has karaoke modeNo
mounting typeCar Mount,Truck,Under Seat Mount
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Product Overview

I recently had the opportunity to review the Rockville SS8P 400 Watt Slim Under Seat Powered Car/Truck Subwoofer Sub Amp Kit and I have to say that I am impressed with this product. It is a great option for anyone looking to add some bass to their car or truck. The kit comes with the subwoofer, amp installation kit, and RCA cable, so it is easy to install and get up and running right away.

The subwoofer itself is an 8 inch active powered subwoofer with a peak power handling of 400 watts. It features a cast aluminum enclosure which helps keep the driver cool at all times. It also has low level RCA inputs as well as high level inputs with auto turn on technology. The adjustable input sensitivity ensures that you get the best sound possible from your system. The subwoofer also features a 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, and THD of 0.4.

In addition to the subwoofer, the Rockville SS8P 400 Watt Slim Under Seat Powered Car/Truck Subwoofer Sub Amp Kit also includes the Rockville RWK10 10 Gauge Amp Installation Kit. This kit includes a 17 high grade twisted pair of 100 copper RCA cables, 17 10 gauge translucent blue SuperFlex power cables, 17 18 gauge blue remote cable, 17 16 gauge clear speaker wire, and 3 10 gauge clear SuperFlex ground wire. This makes for an easy installation process when setting up your system.

I found that this product was very easy to install and set up in my car/truck and it produced great sound quality with deep bass that really added some life to my music. The price point of this product is also reasonable considering all you get in the package which makes it an excellent value for money purchase in my opinion. The quality of material used in this product is top notch which adds to its durability and longevity.

In conclusion, I would highly recommend this Rockville SS8P 400 Watt Slim Under Seat Powered Car/Truck Subwoofer Sub Amp Kit for anyone looking to upgrade their car audio system with a powerful bass solution that wont break the bank. Its relatively easy to install and produces excellent sound quality with deep bass that will really bring your music alive!

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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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96% of reviewers would recommend to a friend, Based on 2,820 Reviews

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