---
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: "VT138619"
currency: VUV
in_stock: true
reviews_count: 10
category: "Q Power"
url: https://www.desertcart.vu/products/311179783-qpower-quad-8in-underseat-front-fire-subwoofer-enclosure-q-bomb
store_origin: VU
region: Vanuatu
---

# 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:** VT138619
**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?** VT138619 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/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: Good stuff - Fit perfectly in my 2024 silverado lt. Throw in some ds18 or skar subs in it and the sound quality will blow you away. Pretty affordable. Great material used in building these enclosures.
Review: Read whole review - Sundown x8 v3 don't fit with out shaving box and removing rubbers on magnets. Ports also to small for these subs fuffs really bad on deep bass sounds. Overall box is definitely strong, looks great. Definitely recommend for smaller subs. Figured the port was to small for subs took a chance anyways. Fits great in 2019 chevy silverado crew

## 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 | #18,724 in Electronics ( See Top 100 in Electronics ) #15 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 263 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/71NGiy6q9FL.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/71K-MOXbS3L.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)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good stuff
*by M***A on May 24, 2026*

Fit perfectly in my 2024 silverado lt. Throw in some ds18 or skar subs in it and the sound quality will blow you away. Pretty affordable. Great material used in building these enclosures.

### ⭐⭐⭐⭐⭐ Read whole review
*by M***L on November 4, 2022*

Sundown x8 v3 don't fit with out shaving box and removing rubbers on magnets. Ports also to small for these subs fuffs really bad on deep bass sounds. Overall box is definitely strong, looks great. Definitely recommend for smaller subs. Figured the port was to small for subs took a chance anyways. Fits great in 2019 chevy silverado crew

### ⭐⭐⭐⭐⭐ 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 👌

## 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 Vanuatu*
*Store origin: VU*
*Last updated: 2026-06-04*