---
product_id: 300964983
title: "SS8P 400w 8\" Slim Under-Seat Active Powered Car/Truck Subwoofer Sub"
brand: "rockville"
price: "€ 423.15"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.gr/products/300964983-ss8p-400w-8-slim-under-seat-active-powered-car-truck
store_origin: GR
region: Greece
---

# 2.8" Slim Profile 400W Peak Power Cast Aluminum Enclosure SS8P 400w 8" Slim Under-Seat Active Powered Car/Truck Subwoofer Sub

**Brand:** rockville
**Price:** € 423.15
**Availability:** ✅ In Stock

## Summary

> 🎶 Feel the bass, not the bulk – upgrade your ride’s sound game!

## Quick Answers

- **What is this?** SS8P 400w 8" Slim Under-Seat Active Powered Car/Truck Subwoofer Sub by rockville
- **How much does it cost?** € 423.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/300964983-ss8p-400w-8-slim-under-seat-active-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

- • **Durable & Cool:** Cast aluminum enclosure ensures heat dissipation and long-lasting performance.
- • **Smart Auto Turn-On:** Amplifier senses audio signal and powers on/off automatically for hassle-free use.
- • **Powerful yet Compact:** 400W peak power delivers deep bass without sacrificing space under your seat.
- • **Sleek Under-Seat Design:** Only 2.8 inches thick for seamless integration in cars and trucks.
- • **Customizable Bass Control:** Adjust input sensitivity, bass boost, phase, and low pass filter to tailor your sound.

## Overview

The Rockville SS8P is a slim, 8-inch active powered subwoofer designed to fit discreetly under your car or truck seat. With 400 watts peak power and a cast aluminum enclosure for optimal cooling, it offers rich, customizable bass through advanced features like adjustable input sensitivity, bass boost, and phase control. Its smart auto turn-on technology and all-in-one design simplify installation, making it the perfect upgrade for millennial professionals seeking powerful sound without compromising space.

## Description

The Ss8P Is An All In One Solution To Give You Great Sounding Bass In Your Vehicle Without Taking Up A Lot Of Space. This Sub Enclosure Is Only 2.8" Thick So That It Can Easily Fit Under Your Seat. The Amplifier Is Built In, So Installation And Wiring Is Clean And Simple. This Is A True All In One Subwoofer Solution With The Subwoofer Built Into The Enclosure Along With A Top Of The Line Amplifier Built In As Well. We Focused On Making Installation A Breeze So We Designed This Unit With You The Customer In Mind. We Added High Level Inputs So You Can Install This To An Aftermarket Or Factory System. The High Level Input Allows You To Install This Even If You Have No Preamp Outputs Available. 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 Ss8P 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 But The Best Thing About Our Model Is The Sound. It Is Slim But It Sounds Like A Full Sized Subwoofer If You Are Not Happy With It We Will Offer You A 90-Day Money Back Guarantee. If You Don'T Like The Sound, We Will Send You A Pre-Paid Label And Refund You In Full!.

## Features

- 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 15A.
- Specifications: Peak Power 400 Watts. RMS Power: 100 Watts. Impedance: 4 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Antenna Location | For cars or trucks |
| Asin | B079PRCP9W |
| Audio Driver Size | 8 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | 164,554 in Electronics & Photo (See Top 100 in Electronics & Photo) 119 in Car Enclosed Subwoofer Systems |
| Box Contents | Remote Bass Knob, Mounting Hardware |
| Brand Name | Rockville |
| Colour | black |
| Compatible Devices | Smartphone, Tablet, MP3 player |
| Compatible With Vehicle Type | Car, Truck |
| Connectivity Protocol | RCA |
| Control Method | Remote |
| Controller Type | Remote Control |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,712) 4.4 out of 5 stars |
| Enclosure Material | Metal, plastic |
| Frequency Response | 150 Hz |
| Global Trade Identification Number | 00819216020937 |
| Impedance | 4 Ohms |
| Input Voltage | 300 Millivolts |
| Is Waterproof | false |
| Item Dimensions D X W X H | 53.6D x 91W x 20.3H centimetres |
| Item Type Name | Rockville SS8P 400w 8" Slim Under-Seat Active Powered Car/Truck Subwoofer Sub |
| Manufacturer | Rockville |
| Maximum Range | 10 Metres |
| Maximum Speaker Output Power In Watts | 400 Watts |
| Model Name | SS8P |
| Model Number | SS8P |
| Mounting Type | Under seat mounting |
| Mp3 Player | No |
| Network Connectivity Technology | RCA |
| Number Of Audio Channels | 1.0 |
| Number Of Items | 496 |
| Power Source | Corded Electric |
| Product Features | Bass Boost |
| Signal To Noise Ratio | 90 dB |
| Speaker Size | 8 Inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | Vehicle sound systems |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Speaker Diameter | 8 Inches |
| Tweeter Diameter | 1 Inches |
| Unit Count | 1.0 count |
| Upc | 819216020937 |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | No Wireless Communication Technology |
| Woofer Driver Diameter | 8 Inches |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** Rockville
- **Connectivity technology:** RCA
- **Frequency response:** 150 Hz
- **Input voltage:** 300 Millivolts
- **Material:** Metal, plastic
- **Model name:** SS8P
- **Mounting type:** Under seat mounting
- **Speaker maximum output power:** 400 Watts
- **Speaker type:** Subwoofer

## Images

![SS8P 400w 8" Slim Under-Seat Active Powered Car/Truck Subwoofer Sub - Image 1](https://m.media-amazon.com/images/I/710QlUy+RzL.jpg)

## Available Options

This product comes in different **Pattern Name, Style Name** options.

## Customer Reviews

### ⭐ Missing remote controller
*by  on Reviewed in the United Kingdom 6 February 2026*

The item came with damage box and with missing remote controller. The subwoofer had scratches as well. I have not tested the item yet if it is working

### ⭐⭐⭐⭐⭐ Me encantó
*by  on Reviewed in Mexico 27 October 2019*

Lo recomiendo ampliamente.Lo instale en mi Suzuki swift 2019 debido a que el audio deja mucho que desear a volúmenes altos.Mi intención era quitarle bajos a las bocinas incluidas en mi auto y complementar con este subwoofer para poder subir más el volumen total sin que distorsionara y funciono tal y como esperaba.Creo que este sistema está enfocado a reforzar los bajos de autos que tienen sonido de agencia, no para hacer vibrar las ventanas de los vecinos.TamañoMe sorprendió lo compacto que es e incluso crei (por su tamaño) que no cumpliría con mis espectativas. Cabe debajo del asiento de mi auto y es casi imperceptible. Prácticamente no ocupa espacio y no estorba. Cabe recalcar que mi auto es muy pequeño y aún así pasa desapercibido.INSTALACIÓNLa instalación será tan fácil como tu auto lo permita. En mi caso fue sencilla y no tengo experiencia en instalación aunque si tengo conocimientos de electrónica y herramientas.Solo necesitas conectar voltaje y fuente de audio, es todo.CALIDAD DE AUDIOSi tus espectativas son moderadas entonces tiene un buen sonido, es de cajón sellado por lo cual lo hace carecer de las frecuencias más bajas, pequeño precio a pagar por su tamaño tan compacto. Tienes que invertir un tiempo para ajustarlo a tus necesidades.CALIDADLa calidad de construcción es muy buena, es aluminio vaciado, lo cual le da mucho peso. El calor se dicipa en la carcasa. La parrilla que protege la bocina es de metal.EN RESUMENHasta el momento me siento satisfecho, hace lo que se supone y cumple con mis espectativas. No me gustó el led azul del potenciómetro, brilla demasiado, debieron utilizar un led rojo con menos brillo.

### ⭐⭐⭐⭐⭐ Good Bass nice performances in Budget.
*by  on Reviewed in the United Arab Emirates 16 September 2024*

Easily I didn't feel much difference in the sound quality later on when I started hearing the song which I used to hear before installing this sub. Huge difference was noticed... I am satisfied really. For the cost and consuming very less space

## Frequently Bought Together

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-10-01*