---
product_id: 250428943
title: "Massive Audio BOOM88 400W Powered Hideaway Subwoofer | Ultra-Slim Underseat Active Sub, Built-in Class A/B Amp, Remote Bass Knob, High/Low Inputs, Compact Car Audio Bass System"
brand: "massive audio"
price: "$259.81"
currency: USD
in_stock: false
reviews_count: 9
url: https://www.desertcart.us/products/250428943-massive-audio-boom88-400w-powered-hideaway-subwoofer-ultra-slim-underseat
store_origin: US
region: United States of America
---

# 8" high-excursion bass driver Ultra-slim underseat design 400W Class A/B Amp power Massive Audio BOOM88 400W Powered Hideaway Subwoofer | Ultra-Slim Underseat Active Sub, Built-in Class A/B Amp, Remote Bass Knob, High/Low Inputs, Compact Car Audio Bass System

**Brand:** massive audio
**Price:** $259.81
**Availability:** ❌ Out of Stock

## Summary

> 🚗💥 Unleash Big Bass Without Sacrificing Space!

## Quick Answers

- **What is this?** Massive Audio BOOM88 400W Powered Hideaway Subwoofer | Ultra-Slim Underseat Active Sub, Built-in Class A/B Amp, Remote Bass Knob, High/Low Inputs, Compact Car Audio Bass System by massive audio
- **How much does it cost?** $259.81 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/250428943-massive-audio-boom88-400w-powered-hideaway-subwoofer-ultra-slim-underseat)

## Best For

- massive audio enthusiasts

## Why This Product

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

## Key Features

- • **Instant Bass Control:** Adjust your bass levels on the fly with the included remote knob for personalized sound.
- • **Deep & Punchy 8" Woofer:** Delivers rich, tight lows that elevate every track with clarity and impact.
- • **Powerful 400W Amplification:** Experience clean, distortion-free bass that fills your ride with authority.
- • **Seamless System Integration:** Compatible with factory or aftermarket radios via high/low inputs and auto turn-on.
- • **Space-Saving Ultra-Slim Profile:** Fits discreetly under most seats, preserving your trunk and cargo space.

## Overview

The Massive Audio BOOM88 is a compact, ultra-slim powered subwoofer featuring a built-in 400W Class A/B amplifier and an 8-inch high-excursion driver. Designed to fit under most vehicle seats, it delivers deep, punchy bass while preserving cargo space. With versatile high/low-level inputs and a remote bass control, it integrates effortlessly with factory or aftermarket car audio systems, making it the perfect upgrade for millennial professionals seeking premium sound without compromise.

## Description

Buy Massive Audio BOOM88 400W Powered Hideaway Subwoofer | Ultra-Slim Underseat Active Sub, Built-in Class A/B Amp, Remote Bass Knob, High/Low Inputs, Compact Car Audio Bass System: Component Subwoofers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: If you want extra bass for your factory stereo, this is perfect! - I was looking for something for the family car that would play deep and provide bass my car was missing. I didn’t know what to expect for $100 but I have used Massive products in the past and always liked them. It is built well. Black brushed aluminum top plate. All of the connections were on one side, and the two sides had ribs to help vent the heat for cooling. I like the fact that you don’t need to use the RCA’s from the radio (just spliced the speaker leads) since I really didn’t want to mess with my dash. Easy install that fit perfect under the front seat, and nice to get a bass remote in the box too. I played a multitude of tracks on it, and was surprised at how good it sounded for its size. Thought about a 10 inch but I think the 8 inch speaker is the perfect size for the small air space. Quick bass beats were fast, dynamic and didn't miss a beat while playing with good authority. Deeper beats still had good impact, punch and low end extension. Extended beats had a nice full extended low pitch definition that only sounded a little muddy when pushed really hard. It had enough output to complement the stock radio and fill the car with quality deep bass but not be overpowering. In the end, it was just what I was looking for. I personally prefer at least a 1000 watt woofer in a ported box for my car, but that’s too much for my wife and family. This was just perfect for them, and I also enjoy having more than just factory bass in the car when I drive it with them. If you are looking to complement your current factory or basic aftermarket system with some deeper bass, this is something I would recommend in a heartbeat.
Review: Do not buy - No power lack of sound

## Features

- 400W Built-In Class A/B Amplifier | Delivers clean, powerful bass from a compact hideaway subwoofer that fits under most seats or tight vehicle spaces.
- Ultra-Slim Low-Profile Design | Rugged aluminum enclosure provides big bass performance in a small footprint without taking up trunk or cargo room.
- Deep, Punchy 8" Bass Driver | High-excursion woofer delivers tighter, richer lows for a dramatic improvement in overall audio clarity and impact.
- Easy Integration With Any System | Works with factory or aftermarket radios using high- and low-level inputs, plus includes auto turn-on for convenience.
- Remote Bass Control Included | Adjust bass levels instantly from the driver’s seat for perfect tuning across any music style or driving condition.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FC599BB |
| Audio Driver Size | 8 Inches |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #354,464 in Electronics ( See Top 100 in Electronics ) #1,910 in Car Component Subwoofers |
| Color | Black |
| Compatible Devices | Home Theater, Gaming Console, Television |
| Control Method | Remote |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 3.6 3.6 out of 5 stars (72) |
| Date First Available | July 8, 2018 |
| Global Trade Identification Number | 00623169611117 |
| Impedance | 4 Ohms |
| Included Components | GAIN REMOTE |
| Is Discontinued By Manufacturer | No |
| Is Waterproof | False |
| Item Weight | 12.38 pounds |
| Item model number | BOOM88 |
| Manufacturer | Massive Audio |
| Material | Aluminum |
| Model Name | BOOM88 |
| Mounting Type | Car Mount,Under Seat Mount |
| Number Of Circuits | 1 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 4.6"D x 16.75"W x 11.8"H |
| Recommended Uses For Product | For trucks or cars with limited space |
| Set Name | 1 |
| Shape | rectangular prism |
| Signal-to-Noise Ratio | 90 dB |
| Speaker Size | 8 Inches |
| Speaker Type | Subwoofer |
| Special Feature | Bass Boost |
| Specific Uses For Product | For trucks or cars with limited space, enhancing car audio systems |
| Style | Modern Black |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 8 Inches |
| Surround Sound Channel Configuration | 1.0 |
| Tweeter Diameter | 1 Inches |
| UPC | 623169611117 |
| Unit Count | 1.0 Count |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Communication Technology | No Wireless Communication Technology |
| Woofer Diameter | 8 Inches |

## Product Details

- **Audio Output Mode:** Mono
- **Brand:** Massive Audio
- **Connectivity Technology:** RCA
- **Frequency Response:** 150 Hz
- **Speaker Maximum Output Power:** 400 Watts

## Images

![Massive Audio BOOM88 400W Powered Hideaway Subwoofer | Ultra-Slim Underseat Active Sub, Built-in Class A/B Amp, Remote Bass Knob, High/Low Inputs, Compact Car Audio Bass System - Image 1](https://m.media-amazon.com/images/I/51CpHq98VUL.jpg)
![Massive Audio BOOM88 400W Powered Hideaway Subwoofer | Ultra-Slim Underseat Active Sub, Built-in Class A/B Amp, Remote Bass Knob, High/Low Inputs, Compact Car Audio Bass System - Image 2](https://m.media-amazon.com/images/I/51J4pfUJjRL.jpg)
![Massive Audio BOOM88 400W Powered Hideaway Subwoofer | Ultra-Slim Underseat Active Sub, Built-in Class A/B Amp, Remote Bass Knob, High/Low Inputs, Compact Car Audio Bass System - Image 3](https://m.media-amazon.com/images/I/51hwzdlsGFL.jpg)
![Massive Audio BOOM88 400W Powered Hideaway Subwoofer | Ultra-Slim Underseat Active Sub, Built-in Class A/B Amp, Remote Bass Knob, High/Low Inputs, Compact Car Audio Bass System - Image 4](https://m.media-amazon.com/images/I/610bmmjm3uL.jpg)
![Massive Audio BOOM88 400W Powered Hideaway Subwoofer | Ultra-Slim Underseat Active Sub, Built-in Class A/B Amp, Remote Bass Knob, High/Low Inputs, Compact Car Audio Bass System - Image 5](https://m.media-amazon.com/images/I/614fBSdr+5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ If you want extra bass for your factory stereo, this is perfect!
*by N***Y on August 28, 2018*

I was looking for something for the family car that would play deep and provide bass my car was missing. I didn’t know what to expect for $100 but I have used Massive products in the past and always liked them. It is built well. Black brushed aluminum top plate. All of the connections were on one side, and the two sides had ribs to help vent the heat for cooling. I like the fact that you don’t need to use the RCA’s from the radio (just spliced the speaker leads) since I really didn’t want to mess with my dash. Easy install that fit perfect under the front seat, and nice to get a bass remote in the box too. I played a multitude of tracks on it, and was surprised at how good it sounded for its size. Thought about a 10 inch but I think the 8 inch speaker is the perfect size for the small air space. Quick bass beats were fast, dynamic and didn't miss a beat while playing with good authority. Deeper beats still had good impact, punch and low end extension. Extended beats had a nice full extended low pitch definition that only sounded a little muddy when pushed really hard. It had enough output to complement the stock radio and fill the car with quality deep bass but not be overpowering. In the end, it was just what I was looking for. I personally prefer at least a 1000 watt woofer in a ported box for my car, but that’s too much for my wife and family. This was just perfect for them, and I also enjoy having more than just factory bass in the car when I drive it with them. If you are looking to complement your current factory or basic aftermarket system with some deeper bass, this is something I would recommend in a heartbeat.

### ⭐ Do not buy
*by R***N on February 10, 2019*

No power lack of sound

### ⭐⭐⭐⭐⭐ Don't let the size fool you!
*by M***C on September 4, 2018*

This is one awesome amp!! It packs a nice punch that will enhance any audio system. I was skeptical at first sight thinking, ok this may give me a little bit of bass but, Wow was I wrong! Don't let the size fool you. It sounds great! I installed this Sub in my truck with an older Kenwood head unit and some 6.5" Infinity coaxials in the doors and rear cab and was amazed at the enhanced sound that I was hearing. It actually gives your audio a much fuller sound. Connecting the amp was straight forward. Read and Follow the instructions provided and you can't go wrong... Just buy it!!

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-28*