---
product_id: 728711826
title: "Rockville SS8P 400 Watt Slim Under-Seat Powered Car/Truck Subwoofer Sub+Amp Kit"
brand: "rockville"
price: "2167667₫"
currency: VND
in_stock: false
reviews_count: 5
url: https://www.desertcart.vn/products/728711826-rockville-ss8p-400-watt-slim-under-seat-powered-car-truck
store_origin: VN
region: Vietnam
---

# PWM MOSFET Power Supply 400W Peak Power Cast Aluminum Cooling Rockville SS8P 400 Watt Slim Under-Seat Powered Car/Truck Subwoofer Sub+Amp Kit

**Brand:** rockville
**Price:** 2167667₫
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate your drive with bass that commands attention—under-seat power, over-the-top impact!

## Quick Answers

- **What is this?** Rockville SS8P 400 Watt Slim Under-Seat Powered Car/Truck Subwoofer Sub+Amp Kit by rockville
- **How much does it cost?** 2167667₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/728711826-rockville-ss8p-400-watt-slim-under-seat-powered-car-truck)

## 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

- • **Cool & Reliable:** Cast aluminum enclosure ensures your subwoofer stays cool under pressure, delivering consistent bass without overheating.
- • **Slim Powerhouse:** 400W peak power in a sleek 2.8" slim design fits discreetly under your seat for that clean, professional look.
- • **Built to Protect:** Thermal, short, and overload protection circuits with LED indicators keep your system safe and performing at its best.
- • **Custom Bass Control:** Adjustable input sensitivity, bass boost up to 12dB, and phase switch let you tailor your sound to perfection.
- • **Plug & Play Precision:** Includes premium 10-gauge amp installation kit with 100% copper wiring and gold-plated fuse holder for flawless connectivity.

## Overview

The Rockville SS8P is a slim, 8" powered subwoofer delivering 400W peak and 100W RMS, designed to fit discreetly under car or truck seats. Featuring a cast aluminum enclosure for superior cooling, PWM MOSFET power supply, and advanced protection circuits, it ensures powerful, reliable bass. The package includes a premium 10-gauge amp installation kit with 100% copper wiring and gold-plated fuse holder, making installation seamless and professional-grade.

## Description

Rockville SS8P 400 Watt Slim Under-Seat Powered Car/Truck Subwoofer Sub+Amp Kit : desertcart.co.uk: Electronics & Photo

Review: AMAZING SOUDND quality for a reasonable price. Rockville's customer service representatives are passionate and professional. Thanks for the quick support and a great product.
Review: 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!

## 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
- Features of SS8P: Rockville SS8P 8" 400w Slim Under-Seat Active Powered Car/Truck Subwoofer Sub, Enclosure is made out of cast aluminum which stays cool at all times, Peak Power Handling: 400 Watts, RMS Power Handling: 100 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 - 150Hz, Bass Boost: 0 - 12dB @ 45Hz, Built in Subsonic Filter @ 20Hz, THD: < 0.4%, Subwoofer Level Remote Control, Fuse Rating: Single 10A
- Specifications of SS8P: Peak Power 400 Watts, RMS Power: 100 Watts, Impedance: 2 Ohm, Dimensions (L x W X H): 11.4" x 8.3" x 2.8" Inches, Frequency Response: 20Hz - 150Hz, Signal to Noise Ratio: >90dB, Sensitivity: 90dB @ 1w / 1m, Input sensitivity, Low level: 300mV, Input sensitivity, High level: 1.0V
- Features of RWK10: Rockville RWK10 10 Gauge 2 Channel Car Amplifier Wiring Installation Kit, (1) 17 High Grade Twisted Pair of 100% Copper RCA Cable, 17' 10 Gauge Translucent Blue SuperFlex Power Cables, 17 18 Gauge Blue Remote Cable, 17 16 Gauge Clear Speaker Wire, 3' 10 Gauge Clear SuperFlex Ground Wire, Gold Plated AGU Heat Resistant Fuse Holder, 40 Amp ATU Inline Fuse, 7 Split Tube Loom, Accessories Included: Wire Ties, Ring Terminals, Butt Connectors, Spades, and Grommets

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079PSSD6N |
| Additional Features | Protection |
| Antenna Location | Car |
| Audio Driver Size | 8 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Mono |
| Best Sellers Rank | #37,256 in Electronics ( See Top 100 in Electronics ) #24 in Car Enclosed Subwoofer Systems |
| Brand | Rockville |
| Built-In Media | Rockville RWK10 10 Gauge Amp Installation Kit ANL Fuse Holder 100% Copper RCA, Rockville SS8P 400 Watt Slim Under-Seat Active Powered Subwoofer Sub |
| Color | Black |
| Compatible Devices | Smartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop |
| Compatible with Vehicle Type | Car, Truck |
| Connectivity Protocol | RCA |
| Connectivity Technology | RCA |
| Control Method | Remote |
| Controller Type | Remote Control |
| Customer Reviews | 4.4 out of 5 stars 1,546 Reviews |
| Enclosure Material | Aluminum |
| Frequency Response | 20 Hz |
| Impedance | 2 Ohms |
| Input Voltage | 12 Volts |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 11"D x 14.1"W x 5.4"H |
| Item Weight | 11 Pounds |
| MP3 player | No |
| Manufacturer | Rockville |
| Model Name | SS8P |
| Model Number | SS8P+RWK10 |
| Mounting Type | Under-Seat Mount |
| Number Of Circuits | 1 |
| Number of Audio Channels | 2.0 |
| Number of Items | 1 |
| Power Source | 12-volt DC electrical system |
| Processor Count | 1 |
| Signal-to-Noise Ratio | 90 dB |
| Speaker Maximum Output Power | 400 Watts |
| Speaker Size | 8 Inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | DJ |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 8 Inches |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Manufacturer |
| Warranty Type | Limited |
| Wireless Technology | No Wireless Communication Technology |
| Woofer Diameter | 8 Inches |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** Rockville
- **Compatible devices:** Car Audio System, Truck Audio System
- **Connectivity technology:** RCA
- **Model name:** SS8P
- **Mounting type:** Tabletop Mount
- **Speaker maximum output power:** 400 Watts
- **Speaker type:** Subwoofer
- **Special feature:** Subwoofer, Waterproof, USB Charging, Built-in Microphone
- **Subwoofer diameter:** 8 Inches

## Images

![Rockville SS8P 400 Watt Slim Under-Seat Powered Car/Truck Subwoofer Sub+Amp Kit - Image 1](https://m.media-amazon.com/images/I/71ErSDiXvZL.jpg)
![Rockville SS8P 400 Watt Slim Under-Seat Powered Car/Truck Subwoofer Sub+Amp Kit - Image 2](https://m.media-amazon.com/images/I/710QlUy+RzL.jpg)
![Rockville SS8P 400 Watt Slim Under-Seat Powered Car/Truck Subwoofer Sub+Amp Kit - Image 3](https://m.media-amazon.com/images/I/817GqrBIz6L.jpg)
![Rockville SS8P 400 Watt Slim Under-Seat Powered Car/Truck Subwoofer Sub+Amp Kit - Image 4](https://m.media-amazon.com/images/I/816XXEJZN8L.jpg)
![Rockville SS8P 400 Watt Slim Under-Seat Powered Car/Truck Subwoofer Sub+Amp Kit - Image 5](https://m.media-amazon.com/images/I/71cSqa9U0XL.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

### ⭐⭐⭐⭐⭐ Review
*by M***W on 3 April 2025*

AMAZING SOUDND quality for a reasonable price. Rockville's customer service representatives are passionate and professional. Thanks for the quick support and a great product.

### ⭐⭐⭐⭐⭐ Review
*by N***E on 12 January 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!

### ⭐ Review
*by R***N on 19 July 2024*

U set it up u get flat spots u reset it still just dosent quite get there. It took 3 weeks to receive it as it seems the courier service lost it for 2 weeks. Over all my experience with product was disappointing

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---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-22*