---
product_id: 78487996
title: "SS8P 8\" Slim Under-Seat Powered Car/Truck Subwoofer"
brand: "rockville"
price: "¥54391"
currency: JPY
in_stock: true
category: "Rockville"
url: https://www.desertcart.jp/products/78487996-ss8p-8-slim-under-seat-powered-car-truck-subwoofer
store_origin: JP
region: Japan
---

# 2.8" slim profile 400W peak power Built-in amp with adjustable controls SS8P 8" Slim Under-Seat Powered Car/Truck Subwoofer

**Brand:** rockville
**Price:** ¥54391
**Availability:** ✅ In Stock

## Summary

> 🎶 Big Bass, Zero Bulk — Elevate Your Ride’s Sound Game!

## Quick Answers

- **What is this?** SS8P 8" Slim Under-Seat Powered Car/Truck Subwoofer by rockville
- **How much does it cost?** ¥54391 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/78487996-ss8p-8-slim-under-seat-powered-car-truck-subwoofer)

## 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

- • **Plug & Play Setup:** Built-in amplifier and included hardware make installation effortless and clean.
- • **Ultra-Slim 2.8" Design:** Maximize cabin space with a sleek subwoofer that fits discreetly under most seats.
- • **Immersive 400W Bass Power:** Feel every beat with deep, rich low frequencies that transform your drive.
- • **Customizable Sound Control:** Adjust bass, phase, and gain to tailor your audio experience perfectly.
- • **Durable Aluminum Enclosure:** Stay cool and reliable on every journey with a heat-dissipating, rugged build.

## Overview

The Rockville SS8P is a powerful 8" under-seat subwoofer delivering 400W peak power in a slim 2.8" profile. Featuring a built-in amplifier with adjustable bass, phase, and gain controls, it fits neatly under most vehicle seats for space-saving, high-impact bass. Its durable cast aluminum enclosure ensures reliable heat dissipation and long-lasting performance, making it an ideal upgrade for cars, trucks, and SUVs seeking premium sound without sacrificing space.

## Description

The Rockville SS8P 400W 8" Slim Under-Seat Active Subwoofer adds deep, impactful bass to your car or truck audio system without taking up valuable space. With a compact 2.8" profile, it fits neatly under most vehicle seats, making it ideal for cars, trucks, and SUVs where space is limited.Powerful Audio: An 8" subwoofer delivers 400 watts of peak power and 100 watts RMS, producing rich low-end sound for a more dynamic listening experience.Compact Fit: Slim and sleek, it installs discreetly under your seat, leaving your trunk space free.Simple Setup: Features a built-in amplifier with high-level inputs, auto turn-on technology, and included mounting hardware for a clean, straightforward installation.Customizable Sound: Fine-tune your audio with adjustable bass boost, phase control, low pass filter, and input sensitivity.Reliable Build: The cast aluminum enclosure ensures efficient heat dissipation and durability, built to handle daily driving conditions.Whether you're upgrading a factory system or enhancing your commute, the Rockville SS8P offers big bass in a small footprint-ideal for music lovers who want high-performance sound in any vehicle.

## Features

- DEEP BASS PERFORMANCE: Delivers 400W peak power with an 8" subwoofer for rich, immersive low frequencies in your car or truck audio system.
- SPACE-SAVING DESIGN: Slim 2.8" profile fits under most vehicle seats, maximizing space while providing powerful bass for small cars, trucks, or SUVs.
- BUILT-IN AMPLIFIER: Integrated amp simplifies setup, with high-level inputs and auto turn-on technology, plus adjustable controls for bass, phase, and gain.
- EASY INSTALLATION: Includes mounting hardware and remote bass knob for quick setup; compatible with factory or aftermarket audio systems.
- DURABLE CONSTRUCTION: Cast aluminum enclosure helps dissipate heat and keeps the subwoofer cool, ensuring long-lasting, reliable performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079PRCP9W |
| Additional Features | Subwoofer, Waterproof, USB Charging, Built-in Microphone |
| Antenna Location | Car |
| Audio Driver Size | 8 inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #9,410 in Electronics ( See Top 100 in Electronics ) #85 in Car Component Subwoofers |
| Brand | Rockville |
| Built-In Media | Subwoofer |
| Color | black |
| Compatible Devices | Car, Truck |
| Compatible with Vehicle Type | Car, Truck |
| Connectivity Protocol | wired |
| Connectivity Technology | Bluetooth |
| Control Method | Remote |
| Controller Type | Remote Control |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,660) |
| Enclosure Material | Aluminum |
| Frequency Response | 20 hertz |
| Global Trade Identification Number | 00819216020937 |
| Impedance | 4 ohm |
| Input Voltage | 300 Millivolts |
| Is Waterproof | False |
| Item Dimensions D x W x H | 16"D x 12"W x 5"H |
| Item Type Name | Rockville SS8P 400w 8" Slim Under-Seat Active Powered Car/Truck Subwoofer Sub |
| Manufacturer | Rockville |
| Maximum Range | 10 meters |
| Model Name | SS8P |
| Model Number | SS8P |
| Mounting Type | Under-Seat |
| Number of Audio Channels | 1 |
| Number of Items | 496 |
| Signal-to-Noise Ratio | 90 db |
| Speaker Maximum Output Power | 400 watts |
| Speaker Size | 8 inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | Vehicle sound systems |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 8 inches |
| UPC | 819216020937 |
| Unit Count | 1 Count |
| Warranty Description | 1 YEAR |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Woofer Diameter | 8 inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** Rockville
- **Connectivity Technology:** Bluetooth
- **Frequency Response:** 20 hertz
- **Speaker Maximum Output Power:** 400 watts

## Images

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

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.jp/products/78487996-ss8p-8-slim-under-seat-powered-car-truck-subwoofer](https://www.desertcart.jp/products/78487996-ss8p-8-slim-under-seat-powered-car-truck-subwoofer)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-15*