---
product_id: 311179783
title: "QPower Quad 8in Underseat Front Fire Subwoofer Enclosure, Q-Bomb Ported Sub Box Compatible with Chevy Silverado Crew Cab, GMC Sierra Crew Cab 2007-2026"
brand: "q power"
price: "$856.06"
currency: USD
in_stock: true
reviews_count: 9
category: "Q Power"
url: https://www.desertcart.us/products/311179783-qpower-quad-8in-underseat-front-fire-subwoofer-enclosure-q-bomb
store_origin: US
region: United States of America
---

# 4 x 8in subwoofer ports Fits 2007-2026 Silverado & Sierra Crew Cab Rugged bed liner durability QPower Quad 8in Underseat Front Fire Subwoofer Enclosure, Q-Bomb Ported Sub Box Compatible with Chevy Silverado Crew Cab, GMC Sierra Crew Cab 2007-2026

**Brand:** q power
**Price:** $856.06
**Availability:** ✅ In Stock

## Summary

> 🎶 Unleash the bass beast under your seat — because your truck deserves to sound as bold as you do!

## Quick Answers

- **What is this?** QPower Quad 8in Underseat Front Fire Subwoofer Enclosure, Q-Bomb Ported Sub Box Compatible with Chevy Silverado Crew Cab, GMC Sierra Crew Cab 2007-2026 by q power
- **How much does it cost?** $856.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/311179783-qpower-quad-8in-underseat-front-fire-subwoofer-enclosure-q-bomb)

## Best For

- q power enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Rugged bed liner material ensures your subwoofer enclosure withstands daily wear and tear, keeping your sound system pristine.
- • **Tailored Truck Fit:** Precision-engineered for Chevy Silverado & GMC Sierra Crew Cab models (2007-2026) — no modifications needed, just plug and play.
- • **Quad 8-inch Powerhouse:** Four 8-inch subwoofer openings deliver immersive, room-shaking bass that commands attention on every drive.
- • **Optimized Bass Performance:** Tuned at 35 Hz with 0.8 cubic feet air space and 11.25-inch mounting depth for deep, crisp lows that elevate your driving vibe.
- • **Underseat Down-Fire Design:** Innovative front fire audio projection boosts bass clarity and volume without sacrificing cabin space.

## Overview

The Q Power Quad 8in Underseat Front Fire Subwoofer Enclosure is a custom-fit, ported sub box designed specifically for 2007-2026 Chevy Silverado and GMC Sierra Crew Cab trucks. Featuring four 8-inch subwoofer openings, a rugged bed liner exterior for durability, and an underseat down-fire design, it delivers powerful, clear bass tuned at 35 Hz. This enclosure maximizes audio performance while maintaining a sleek, space-saving profile, making it the ultimate upgrade for truck owners craving immersive sound.

## Description

Product description

Review: Fits the truck perfectly - Great fit. Box fits 8s and the truck excellent. No need for seat lifters. Stick out just a tad in front . But not enough to be troublesome 👌
Review: Quad 8 - Have it in my 08 2500 hd sierra extended cab. Seat would need to be raised if you need to continue to use it.

## Features

- Ideal enclosure box fit with 4-hole 8-inch openings, allowing for 4 powerful subwoofer speakers, enhancing auditory bass and sound experience
- Compatible with 2007-2026 Chevy Silverado Crew Cab and GMC Sierra Crew Cab trucks
- Comes with an underseat down front fire capabilities, designed to enhance audio projection, that help produce a noticeably louder and crisper sound than ever before
- Designed with a rugged bed liner material, providing exceptional durability, reliable protection, and enhanced longevity for lasting stereo performance
- Crafted meticulously to create a space for loud, immersive bass playing, with a tuning frequency of 35 hertz, 0.8 cubic feet air space, and a mounting depth of 11.25 inches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08SF2FW97 |
| Additional Features | Underseat Down Fire, Rugged Bed Liner |
| Audio Driver Size | 8 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Front |
| Best Sellers Rank | #54,729 in Electronics ( See Top 100 in Electronics ) #96 in Car Subwoofer Boxes & Enclosures |
| Brand | Q Power |
| Built-In Media | 4 x Subwoofer |
| Compatible Devices | Gaming Console, Laptop, MP3 Player, Smartphone, Tablet |
| Compatible with Vehicle Type | Car |
| Connectivity Protocol | USB |
| Connectivity Technology | USB |
| Control Method | Touch |
| Customer Package Type | FFP |
| Customer Reviews | 4.4 out of 5 stars 128 Reviews |
| Enclosure Material | Bed Liner Material |
| Frequency Response | 35 Hz |
| Is Waterproof | FALSE |
| MP3 player | No |
| Manufacturer | QPower |
| Model Name | QBGMC07408 |
| Model Number | QBGMC07408 |
| Mounting Type | underseat |
| Number of Audio Channels | 4.0 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Processor Count | 4 |
| Speaker Maximum Output Power | 400 Watts |
| Speaker Size | 8 Inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | Car Audio Systems |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 8 Inches |
| Total Ethernet Ports | 4 |
| UPC | 813177027141 |
| Warranty Type | Lifetime |
| Woofer Diameter | 8 Inches |

## Product Details

- **Audio Output Mode:** Front
- **Brand:** Q Power
- **Connectivity Technology:** USB
- **Frequency Response:** 35 Hz
- **Speaker Maximum Output Power:** 400 Watts

## Images

![QPower Quad 8in Underseat Front Fire Subwoofer Enclosure, Q-Bomb Ported Sub Box Compatible with Chevy Silverado Crew Cab, GMC Sierra Crew Cab 2007-2026 - Image 1](https://m.media-amazon.com/images/I/61luKa9ceNL.jpg)
![QPower Quad 8in Underseat Front Fire Subwoofer Enclosure, Q-Bomb Ported Sub Box Compatible with Chevy Silverado Crew Cab, GMC Sierra Crew Cab 2007-2026 - Image 2](https://m.media-amazon.com/images/I/71m1aBJSYgL.jpg)
![QPower Quad 8in Underseat Front Fire Subwoofer Enclosure, Q-Bomb Ported Sub Box Compatible with Chevy Silverado Crew Cab, GMC Sierra Crew Cab 2007-2026 - Image 3](https://m.media-amazon.com/images/I/71QggzEjRlL.jpg)
![QPower Quad 8in Underseat Front Fire Subwoofer Enclosure, Q-Bomb Ported Sub Box Compatible with Chevy Silverado Crew Cab, GMC Sierra Crew Cab 2007-2026 - Image 4](https://m.media-amazon.com/images/I/71mDP5hjzyL.jpg)
![QPower Quad 8in Underseat Front Fire Subwoofer Enclosure, Q-Bomb Ported Sub Box Compatible with Chevy Silverado Crew Cab, GMC Sierra Crew Cab 2007-2026 - Image 5](https://m.media-amazon.com/images/I/819BAt9POlL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fits the truck perfectly
*by D***D on December 11, 2025*

Great fit. Box fits 8s and the truck excellent. No need for seat lifters. Stick out just a tad in front . But not enough to be troublesome 👌

### ⭐⭐⭐⭐⭐ Quad 8
*by A***R on May 26, 2025*

Have it in my 08 2500 hd sierra extended cab. Seat would need to be raised if you need to continue to use it.

### ⭐⭐⭐⭐⭐ 2012 Chevy Silverado
*by B***R on June 15, 2025*

No other box would make my Chevy Silverado pound like this one.It's absolutely everything that I wanted

## Frequently Bought Together

- Q Power 8 Inch Quad Port Car Subwoofer Speaker Enclosure Box with Bed Liner and Underseat Down Front Fire for 4 Subwoofers, Black
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- SUB ZERO Ice SS3327 Speakers, 6.5-inch Coaxial 220W - Black/grey

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-23*