---
product_id: 57118801
title: "SS8P Bundle: 400-Watt 8 in Slim Under-Seat Active Powered Car/Truck Subwoofer, RWK10 10 Gauge Amp Installation Kit with ANL Fuse Holder and 100% Copper RCA Cable, 2-Items"
brand: "rockville"
price: "€ 261.92"
currency: EUR
in_stock: true
reviews_count: 5
category: "Rockville"
url: https://www.desertcart.it/products/57118801-ss8p-bundle-400-watt-8-in-slim-under-seat-active
store_origin: IT
region: Italy
---

# 2.8" slim under-seat fit 400W peak power 10-gauge copper wiring kit SS8P Bundle: 400-Watt 8 in Slim Under-Seat Active Powered Car/Truck Subwoofer, RWK10 10 Gauge Amp Installation Kit with ANL Fuse Holder and 100% Copper RCA Cable, 2-Items

**Brand:** rockville
**Price:** € 261.92
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your drive with bass that’s as sharp as your style.

## Quick Answers

- **What is this?** SS8P Bundle: 400-Watt 8 in Slim Under-Seat Active Powered Car/Truck Subwoofer, RWK10 10 Gauge Amp Installation Kit with ANL Fuse Holder and 100% Copper RCA Cable, 2-Items by rockville
- **How much does it cost?** € 261.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/57118801-ss8p-bundle-400-watt-8-in-slim-under-seat-active)

## Best For

- rockville enthusiasts

## Why This Product

- Trusted rockville brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** 400W peak output delivers concert-level bass without sacrificing cabin space.
- • **Built to Last & Perform:** Durable cast aluminum enclosure stays cool and vibration-free, ensuring reliable, high-quality sound.
- • **Precision Audio Control:** Adjustable low-pass filter, phase switch, subsonic filter, and bass boost for tailored sound.
- • **Sleek Under-Seat Design:** Slim 2.8" enclosure fits discreetly under most car and truck seats for a stealthy upgrade.
- • **Premium Installation Kit:** Includes 10-gauge SuperFlex power wire and 100% copper RCA cables for clean, distortion-free audio.

## Overview

The Rockville SS8P Bundle combines a powerful 400W slim 8" under-seat subwoofer with a premium 10-gauge amp installation kit featuring 100% copper RCA cables and an ANL fuse holder. Designed for seamless under-seat mounting, it offers advanced sound controls and a rugged aluminum enclosure for superior bass performance and durability, perfect for car and truck audio enthusiasts seeking a sleek, high-impact upgrade.

## Description

desertcart.com: Rockville SS8P Bundle: 400-Watt 8 in Slim Under-Seat Active Powered Car/Truck Subwoofer, RWK10 10 Gauge Amp Installation Kit with ANL Fuse Holder and 100% Copper RCA Cable, 2-Items : Electronics

Review: Buy it! - Another cliche ‘I don’t write reviews’ post here... but I am very impressed with all aspects of this subwoofer! Most everything is already covered in other reviews but I wanted to give some thanks to Rockville for this design! In another life I loved having worked on cars, having 2x12s in the trunk, nothing was left stock. I consider myself an audio and car enthusiast, but not a pro by any means. I like car modifications to fit as close to OEM as possible. I also like to have audio equipment sound true, flat / accurate with its reproduction. This enclosure is for specifically under-seat applications. You will not be happy with it in the trunk. - Build quality is top notch - solid metal enclosure will break your toe if you’re not careful. No rattles or cheap-feeling at all. All connections and adjustments are on one side, good idea. - Small size will fit *most* under-seat locations. Note: 2015 Hyundai Sonata 2.0 drivers seat has a plastic tray that will hold it, but it is tight. Does not fit ‘on the floor’ under the seat due to a/c duct and gear motor. So the enclosure sticks forward just an inch from the front of the seat towards your legs, but does not interfere or touch. In the seats lowest position it will squish the enclosure, but send vibrations straight to your tushie for an amazing concert-like experience. -10ga Amp Kit was perfect. Quality cables and wires included. You will need a few extra zip ties of your own. I used the ‘soft auto on’ and hi-input connections so I only needed four wires: power, ground, left and right. -Subwoofer gain level remote knob is helpful to route to the dash so you don’t have to keep adjusting the gain on the subwoofer itself. -Power is more than adequate for under-seat locations. Note: Sub is far too quiet when located in the trunk, but it is not designed for that. I tried it in the trunk but needed to move it back to under the seat. -Sound quality is very impressive for a tiny 8” enclosure. You cannot even tell a sub is installed from outside the car (you won’t p*ss off your neighbors). On stock head unit (4x door speakers, 2x tweeters in the dash. Bass +3, mid +2, High +3) Subwoofer bass boost on zero, LPF at ~60hz, gain at 60% the lows are thick and rich, kick drums hit hard. Rock, metal, country - sounds great. Hip hop or techno is average, to above average, because of the ultra low kick and sub hits... there are just a few frequencies that are missing but that could be due to my car head unit eq. Overall, great product! With new JVC CS-J620 door speakers and this sub, my anemic stock car stereo has become fantastic!
Review: Great sound and great price - This little sub is awesome. Adds a ton of sound that is missing from factory systems. Easily hooked up through higher power since I have the factory head unit. Sounds great in the cab of the truck and can even hear it a little outside of it. Fit perfectly behind the seat. I even think this unit sounds better than the kicker hideaway.

## Features

- Package Includes: (1) Rockville SS8P 400-Watt Slim Under-Seat Active Powered Car/Truck Subwoofer Sub, (1) Rockville RWK10 10 Gauge Amp Installation Kit ANL Fuse Holder 100% Copper RCA
- Compact Power with Deep Bass: 400W peak / 100W RMS output in a slim 2.8" enclosure for powerful, clear bass that fits easily under car or truck seats.
- Advanced Controls: Adjustable low-pass filter (50Hz–150Hz), phase switch (0°/180°), subsonic filter (20Hz), and bass boost (0–12dB @45Hz) for fine-tuned sound performance.
- High-Quality Design: Cast aluminum enclosure stays cool; 4Ω impedance, frequency response 20–150Hz, SNR >90dB, sensitivity 90dB @1W/1m; single 15A fuse for dependable power.
- Premium Wiring Kit: RWK10 includes 100% copper RCA cables and 10-gauge SuperFlex power wire with low resistance for efficient current flow and clean, distortion-free audio.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079PSSD6N |
| Audio Driver Size | 8 Inches |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #30,008 in Electronics ( See Top 100 in Electronics ) #12 in Car Enclosed Subwoofer Systems |
| Color | Black |
| Compatible Devices | Smartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop |
| Control Method | Remote |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,538) |
| Date First Available | February 9, 2018 |
| Impedance | 2 Ohms |
| Included Components | 1) Rockville SS8P 400 Watt Slim Under-Seat Active Powered Car/Truck Subwoofer Sub, 1) Rockville RWK10 10 Gauge Amp Installation Kit ANL Fuse Holder 100% Copper RCA |
| Is Discontinued By Manufacturer | No |
| Is Waterproof | FALSE |
| Item Weight | 11 pounds |
| Item model number | SS8P+RWK10 |
| Manufacturer | Rockville |
| Material | Aluminum |
| Model Name | SS8P |
| Mounting Type | Under-Seat Mount |
| Number Of Circuits | 1 |
| Number of Items | 1 |
| Power Source | 12-volt DC electrical system |
| Product Dimensions | 11"D x 14.1"W x 5.4"H |
| Recommended Uses For Product | Car |
| Set Name | Rockville SS8P + RWK10 |
| Shape | rectangular prism |
| Signal-to-Noise Ratio | 90 dB |
| Speaker Size | 8 Inches |
| Speaker Type | Subwoofer |
| Special Feature | Protection |
| Specific Uses For Product | Under-seat installation in cars or trucks |
| Style | Black |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 8 Inches |
| Surround Sound Channel Configuration | 2.0 |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Wireless Communication Technology | No Wireless Communication Technology |
| Woofer Diameter | 8 Inches |

## Product Details

- **Audio Output Mode:** Mono
- **Brand:** Rockville
- **Connectivity Technology:** RCA
- **Frequency Response:** 20 Hz
- **Speaker Maximum Output Power:** 400 Watts

## Images

![SS8P Bundle: 400-Watt 8 in Slim Under-Seat Active Powered Car/Truck Subwoofer, RWK10 10 Gauge Amp Installation Kit with ANL Fuse Holder and 100% Copper RCA Cable, 2-Items - Image 1](https://m.media-amazon.com/images/I/71ErSDiXvZL.jpg)

## Questions & Answers

**Q: is everything in the box needed for Installation?**
A: Yes, with the accompanying Amp Kit. Its complete along with rubber insulation you gave to attach yourself. I would suggest electrical tape, wire strippers, and a pair of terminal/electrical pliers  (I apologize if you are already aware.).

**Q: Has anyone added a second sub to their system?**
A: Yes. I used RCA splitters and installed two in my Mitsubishi Montero. Sounds amazing and have been going strong for 3 years. I tried to split the remote control using a telephone line splitter but got weird feedback when I tried to do that, so I just went without the remote control.

**Q: How difficult is this to install?**
A: It's easy to install if you understand stereo systems and how to run the wires. The hardest part is getting to your stereo. Not sure if you have experience or not installing systems. If you do, its easy.

**Q: If I got splitters for both the rca and remote control (telephone jack), can I install one sub under each of the front seat?**
A: Yes. I split my rca signal and installed 2 of the speakers.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Buy it!
*by N***E on January 12, 2020*

Another cliche ‘I don’t write reviews’ post here... but I am very impressed with all aspects of this subwoofer! Most everything is already covered in other reviews but I wanted to give some thanks to Rockville for this design! In another life I loved having worked on cars, having 2x12s in the trunk, nothing was left stock. I consider myself an audio and car enthusiast, but not a pro by any means. I like car modifications to fit as close to OEM as possible. I also like to have audio equipment sound true, flat / accurate with its reproduction. This enclosure is for specifically under-seat applications. You will not be happy with it in the trunk. - Build quality is top notch - solid metal enclosure will break your toe if you’re not careful. No rattles or cheap-feeling at all. All connections and adjustments are on one side, good idea. - Small size will fit *most* under-seat locations. Note: 2015 Hyundai Sonata 2.0 drivers seat has a plastic tray that will hold it, but it is tight. Does not fit ‘on the floor’ under the seat due to a/c duct and gear motor. So the enclosure sticks forward just an inch from the front of the seat towards your legs, but does not interfere or touch. In the seats lowest position it will squish the enclosure, but send vibrations straight to your tushie for an amazing concert-like experience. -10ga Amp Kit was perfect. Quality cables and wires included. You will need a few extra zip ties of your own. I used the ‘soft auto on’ and hi-input connections so I only needed four wires: power, ground, left and right. -Subwoofer gain level remote knob is helpful to route to the dash so you don’t have to keep adjusting the gain on the subwoofer itself. -Power is more than adequate for under-seat locations. Note: Sub is far too quiet when located in the trunk, but it is not designed for that. I tried it in the trunk but needed to move it back to under the seat. -Sound quality is very impressive for a tiny 8” enclosure. You cannot even tell a sub is installed from outside the car (you won’t p*ss off your neighbors). On stock head unit (4x door speakers, 2x tweeters in the dash. Bass +3, mid +2, High +3) Subwoofer bass boost on zero, LPF at ~60hz, gain at 60% the lows are thick and rich, kick drums hit hard. Rock, metal, country - sounds great. Hip hop or techno is average, to above average, because of the ultra low kick and sub hits... there are just a few frequencies that are missing but that could be due to my car head unit eq. Overall, great product! With new JVC CS-J620 door speakers and this sub, my anemic stock car stereo has become fantastic!

### ⭐⭐⭐⭐⭐ Great sound and great price
*by J***K on December 7, 2025*

This little sub is awesome. Adds a ton of sound that is missing from factory systems. Easily hooked up through higher power since I have the factory head unit. Sounds great in the cab of the truck and can even hear it a little outside of it. Fit perfectly behind the seat. I even think this unit sounds better than the kicker hideaway.

### ⭐⭐⭐⭐ Performs pretty good for the price-2015 smart car fortwo
*by J***. on July 8, 2021*

I ordered the 8" ss8p with the wiring kit since it would come all at once. However I only received the speaker. A few days later, I got the wiring kit separate. Installed the speaker the day I got it after a quick run to get a wiring kit. Kinda sucked but nothing too crazy. Upon first inspection, the speaker felt robust in build quality and dense. Really felt like a quality product. I installed this onto my 2015 smart car fortwo with the base two speaker system. The two speakers had sounded horrible and broke so I put in some aftermarket pioneer 6.5" full range speakers and they sounded much more full and clear. However, the bass was lacking incredibly. In addition, the smart car has tons of engine bass and vibrations that any bass I could hear while stationary with the door speakers got drowned out with road noise and such. So I decided to get this small compact sub to slide behind the drivers seat. It fit perfectly. After installing and some tuning, this thing sounds amazing for the small size. Sure it won't blow you away of shake mirrors too much, but it is exponentially better than what door speakers and produce. I must say however, that it isn't all perfect. Some things I noticed was that the bass knob that comes with it is basically useless at high volume. And that brings me to my other point, this sub no longer increases in power after a certain volume. Assuming I've got the gain up high and the bass knob at like halfway, once I turn up my headunit over 22 volume, the door speakers begin to get louder than the bass. My door speakers begin to distort at around 26 volume so basically there's a sweet spot for this sub. Also, keep this thing well ventilated. I've got a small car with the engine right behind me and a relatively weak ac system. Pair that with 100 degree days and some music and this thing WILL get hot. I've got it behind my seat in an area where ventilation is pretty bad so I understand, but its gone into protection mode two or three times already. Though it's only done that when I've idled for like 20 mins listening to music. If this is under a seat beside an air vent you'll have no shutting-off issues like I did. I guess it's a pretty great package for like 110 dollars. If your car has no low end, this will most definitely be an improvement. Think of this as a slightly better premium factory bose system level of bass in a car. It's there for sure, but its not two 12". Perfect for me though.

## Frequently Bought Together

- Rockville SS8P 400 Watt Slim Under-Seat Powered Car/Truck Subwoofer Sub+Amp Kit Black
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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-25*