If you’re looking to enhance your vehicle’s audio system with deep, resonant bass, an up firing subwoofer box is an excellent choice. These enclosures are designed to direct sound upwards for improved acoustics especially in limited cargo or cabin space situations. This article explores some of the best up firing subwoofer boxes available for trucks, cars, and other vehicles, each assessed for durability, sound quality, and fitment. Below is a summary table of the top picks to guide your purchase.
| Product | Brand | Key Features |
|---|---|---|
| KICKER 51KRDL7T102 Dual 10″ Up Firing Enclosure | KICKER | Custom fit truck box, tough MDF construction, KICKER signature-square subwoofers |
| American Sound Connection ASC 2X12GMTRNK Dual 12″ Up Firing | American Sound Connection | Durable construction, precise sound, fits Chevy Camaro coupe 1982-1992 |
| Q Power 2 Hole 12″ Ported Up Firing Subwoofer Box | Q Power | Designed for GM/Chevy Crew Cab, ported for enhanced bass, up firing design |
| QPower 8 Inch Quad Port Enclosure for 4 Subs | Q Power | Quad port design for 4 subs, rugged bed liner finish, underseat down front fire |
| Dual 12″ Ported Subwoofer Enclosure for Silverado/Sierra | Skar Audio | Fits 2019-UP Silverado & GMC Sierra Crew Cab, ported down firing, premium trunk-liner carpet |
KICKER 51KRDL7T102 Dual 10″ Up Firing Enclosure
The KICKER 51KRDL7T102 is a custom-fit up firing subwoofer box designed specifically for selected RAM trucks, perfectly matching every curve under your back seat. Its tough MDF construction and thick internal bracing ensure stability even with extreme bass output. Covered in durable black carpet, the enclosure is pre-wired to a single two-Ohm terminal to maximize power output. The subwoofer features KICKER’s signature square design with nearly 20% more cone area than round subs, moving more air for louder bass in the same space. Additionally, its unique heat management and cone stitching contribute to both deep bass and reliability.
American Sound Connection ASC 2X12GMTRNK Dual 12″ Up Firing Enclosure
This enclosure is designed for Chevy Camaro and Pontiac Firebird coupe models from 1982 to 1992. The dual 12” up firing box is built with precision and high-grade materials for durability, able to withstand daily use while protecting your subwoofers. It delivers powerful bass reproduction that enhances various music genres with deep, impactful sound. Its coupe-specific fit maximizes cabin space without sacrificing aesthetics, making it ideal for vintage car restorations or custom installations.
Q Power 2 Hole 2007-2013 GM/Chevy Crew Cab 12″ Ported Subwoofer Box
The Q Power 2 Hole Ported Box is made for GM and Chevy crew cab trucks from 2007 to 2013. Its ported, up firing design enhances bass output by improving airflow and reducing enclosure pressure. The box supports two 12-inch subwoofers, allowing for a balanced and clear auditory experience. Its sturdy construction ensures long-term durability while fitting neatly within the cabin space without modifications.
QPower 8 Inch Quad Port Car Subwoofer Enclosure for 4 Subs
This quad port subwoofer enclosure from Q Power fits four 8-inch subwoofers and is built with a rugged bed liner material, providing durability and protection. The design incorporates underseat down front fire capabilities to boost sound projection and bass clarity. It’s ideal for users seeking a multi-sub setup with robust bass and crystal-clear sound in a compact, protective cabinet.
Dual 12″ Ported Subwoofer Enclosure for 2019-UP Silverado/Sierra
Specifically designed for 2019 and newer Chevrolet Silverado and GMC Sierra Crew Cab trucks, this dual 12-inch ported subwoofer enclosure offers premium sound and seamless under-seat fitment. Its down-firing design produces rich low-end tones, while the black trunk-liner carpeting enhances durability and blends with the vehicle’s interior. No modifications are required for installation, making it convenient for truck owners who want enhanced bass without sacrificing space.
Buying Guide for Up Firing Subwoofer Boxes
Fit and Compatibility
Ensure the subwoofer box fits your vehicle make, model, and available space. Custom-fit enclosures provide optimal use of space under seats or in cargo areas without requiring modifications.
Subwoofer Size and Configuration
Select the box size based on the subwoofer diameter (typically 8”, 10”, or 12”) and the number of subwoofers the enclosure supports to match your desired bass output and power handling.
Enclosure Design
- Up Firing vs. Down Firing: Up firing boxes direct sound upwards, often improving sound quality inside the cabin and accommodating space restrictions.
- Ported vs. Sealed: Ported enclosures enhance low-frequency output with louder bass, while sealed boxes provide tight, accurate bass response.
Materials and Build Quality
Look for durable construction materials like MDF with internal bracing to resist vibration and damage. A protective finish such as carpet or bed liner can increase longevity.
Power Handling and Connectivity
Check the RMS power rating and impedance (Ohms) compatibility with your amplifier. Pre-wired boxes simplify installation, but ensure connections meet your system’s needs.
Sound Performance and Bass Output
Consider the audio characteristics such as cone design, enclosure tuning, and port size that influence bass clarity, depth, and loudness.
By considering these factors, you can choose the best up firing subwoofer box to transform your vehicle audio with powerful and precise bass.