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JL Audio SBX-GM-SLVCC4/12TW3 Stealthbox™ Enclosed Subwoofer For Chevrolet Silverado And Gmc Sierra Crew Cab Trucks: 1500 2019–up And 2500/3500 2020–up

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SKU:
SBX-GM-SLVCC4/12TW3
Condition:
New
$2,499.99
$2,499.99

Description

JL Audio Stealthbox® • Chevrolet Silverado / GMC Sierra Crew Cab

Stealthbox® Enclosed Subwoofer for Chevrolet Silverado and GMC Sierra Crew Cab

This JL Audio Stealthbox® enclosed subwoofer system is built specifically for Chevrolet Silverado and GMC Sierra Crew Cab trucks, combining a form-fitting enclosure with dual 12-inch TW3 thin-line subwoofers for strong sub-bass performance without giving up passenger comfort. The rugged sealed enclosure installs neatly under the rear seat and is designed to preserve key cabin functionality while keeping bass hidden and cleanly integrated.

Dual 12" TW3 thin-line subwoofers Down-firing sealed enclosure 800 watts RMS 2Ω wired impedance Under-seat fit 1500 2019-up 2500/3500 2020-up

Overview

Hidden Bass for Silverado and Sierra Crew Cab Trucks

This Stealthbox® system combines JL Audio thin-line subwoofer technology with a custom-molded enclosure designed specifically for late-model Chevrolet Silverado and GMC Sierra Crew Cab trucks. Its purpose-built shape allows it to fit under the rear seat while delivering substantially more low-frequency output than a typical factory system.

The enclosure houses two 12-inch TW3 thin-line subwoofers in a down-firing sealed design, keeping the installation discreet while maintaining passenger comfort and interior usability.

  • Vehicle-specific Stealthbox® for Silverado and Sierra Crew Cab trucks.
  • Dual 12" TW3 thin-line subwoofers in a sealed enclosure.
  • Built for strong sub-bass output without a visible cargo-area box.

Fitment

Under-Seat Installation with Preserved Cabin Function

The enclosure is designed to install under the rear seat in Chevrolet Silverado and GMC Sierra full-size Crew Cab trucks. The provided fitment covers 1500 Crew Cab models from 2019-up and 2500/3500 Crew Cab models from 2020-up.

According to the provided product information, installation does not affect rear seat folding, reclining, or rear leg room, making it a clean upgrade for trucks that still need full passenger practicality.

  • 1500 Crew Cab: 2019-up.
  • 2500/3500 Crew Cab: 2020-up.
  • Designed to preserve rear seat utility and passenger space.

Feature Highlights

What This Stealthbox® Adds to the Truck

Dual 12" TW3 Drivers
Two 12-inch TW3 thin-line subwoofers provide substantial low-frequency output while allowing the enclosure to remain low-profile enough for under-seat use.
Down-Firing Sealed Design
The down-firing sealed enclosure is designed for controlled bass performance and clean integration beneath the rear seat.
800W RMS Handling
With 800 watts RMS power handling, the Stealthbox® is ready to pair with a range of capable aftermarket amplifiers.
2Ω Final Load
A wired impedance of 2 ohms gives the enclosure a defined final load for amplifier matching in high-output truck systems.
Hidden Amplifier Area
JL Audio notes a dedicated center section on the enclosure that is well suited for a clean, hidden amplifier installation.
Truck-Specific Integration
The custom enclosure is molded specifically for Silverado and Sierra Crew Cab trucks, helping maintain factory-style fit and interior usability.

Construction & Performance

Thin-Line Output Without Sacrificing Cabin Space

By using JL Audio TW3 thin-line subwoofers, this Stealthbox® is able to deliver meaningful sub-bass performance from a location that normally cannot accommodate conventional large-format enclosures. The sealed down-firing layout supports a discreet install while keeping bass concentrated inside the cabin.

  • 2 x 12" TW3 thin-line subwoofers.
  • Down-firing sealed enclosure format.
  • Designed for strong bass in a space-efficient package.

Installation Package

Complete Vehicle-Specific System

The included package consists of the enclosed dual-subwoofer Stealthbox®, mounting hardware, brackets, and documentation. JL Audio also identifies this as the updated product replacing the discontinued earlier version for these truck applications.

  • Includes enclosure, hardware, brackets, and documentation.
  • Installs under rear seat.
  • Updated SKU replaces prior discontinued version.
Fitment Note
This Stealthbox® is described for Chevrolet Silverado and GMC Sierra full-size Crew Cab trucks: 1500 model years 2019-up and 2500/3500 model years 2020-up. It is intended to install under the rear seat without affecting seat folding, reclining, or rear leg room.
Technical Specifications
Product JL Audio Stealthbox® enclosed subwoofer for Chevrolet Silverado and GMC Sierra Crew Cab
Part Number 010-04652-00
Subwoofer Configuration 2 x 12" TW3 thin-line subwoofers
Enclosure Type Down-firing sealed enclosure
Power Handling 800 watts RMS
Wired Impedance 2 ohms
Vehicle Fitment Chevrolet Silverado / GMC Sierra Crew Cab: 1500 2019-up, 2500/3500 2020-up
Install Location Under rear seat
Includes Enclosure, mounting hardware, brackets, and documentation
Country of Origin Made in the U.S. with global components
Packaging Specifications
Gift Box Dimensions 58.3" x 28.3" x 14.6" (1,481 x 719 x 371 mm)
Gift Box Weight 80.2 lbs (36.4 kg)

Extra Information

Brand:
JL Audio
Weight:
80.00 LBS
Manufacturer SKU:
010-04652-00
RMS Wattage Per Speaker:
800
UPC:
699440948340
Bundle:
No
Feature 1:
JL Audio Stealthbox® system for Chevrolet Silverado and GMC Sierra Crew Cab trucks fits 1500 models from 2019-up and 2500/3500 models from 2020-up, with a custom under-seat enclosure built for factory-style integration.
Feature 2:
Dual 12-inch TW3 thin-line subwoofers in a down-firing sealed enclosure deliver strong low-frequency output while preserving rear-seat usability, including seat folding, reclining, and rear leg room.
Feature 3:
Rugged custom-molded enclosure installs neatly under the rear seat and includes a dedicated center area suited for a clean, hidden amplifier installation.
Feature 4:
Rated for 800 watts RMS and wired to a 2-ohm load, this Stealthbox is built to pair with a range of JL Audio amplifier options for serious truck bass performance.
Feature 5:
Package includes the enclosed dual 12-inch TW3 Stealthbox, mounting hardware, brackets, and documentation for a complete vehicle-specific installation package.
Condition:
NEW
Weight:
80.0000 lbs
Shipping:
Free 2-Day Shipping!
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