Description
Included in this kit
This bundle includes a 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, an Audison SR 1.500.2 D-Class Mono Bass Amplifier 1000 Wrms X 1 At 1-Ohms, and an Audison bit Ten Signal Interface Processor with 4 Channels In and 5 Out.
1x 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 (SBX-GM-SLVCC4/12TW3)
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.
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
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.
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.
| 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 |
| 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) |
1x Audison SR 1.500.2 D-Class Mono Bass Amplifier 1000 Wrms X 1 At 1-Ohms (SR1.500.2)
SR 1.500 - MONO AMPLIFIER 1x500W
We are proud to present the renovated SR 1.500 (1000 W 1 Ω) introduced back in 1988 and constantly updated with the best technologies available. The Audison design team, headquartered in the Potenza Picena (Italy), spent a long time planning and perfecting the new SR line, taking full advantage of the features that the most recent amplification devices available today are equipped with. After numerous listening tests in a double-blind configuration on a significant sample of professionals and enthusiasts, the R&D team decided to adopt a new D-class technology called ADT (Audison D-Class Technology) for the whole range, which made it possible to reduce the size of the amplifiers considerably, totally preserving the audio performance that characterize each Audison project. As for the electronics design, the Audison style center has taken care of every aesthetic and functional detail, obtaining a compact amplifier made of extruded aluminium with rounded corners that ease the installation of the product in narrow spaces. Thanks to the generous heat sinks on the two short sides of the amplifiers, internal cooling fans are not necessary, which are often cause of noise and dust accumulation.
Features -
• ADC (Audison D-Class) Technology 1Ω stable output stage ensuring high audio performance in a compact size.
• Extruded aluminum compact design with fan less convection cooling system.
• Built-in USS (Universal Speakers Simulator).
• Balanced high-noise rejection input speaker-In (for OEM head units) and RCA-In (for Aftermarket head units) inputs.
• ART (Automatic Remote Turn-On/Off) automatically turns on/off the amplifier when the OEM head-unit turns on/off (can be enabled/ disabled, with Speaker-In inputs).
• Pre-outs, also available when using Speaker-In level inputs.
• Bass Boost (50 Hz) adjustable to 12 dB, to increase the subwoofer punch.
• 24 dB continuous adjustable (50 to 250 Hz) Lo-Pass subwoofer filter.
1x Audison bit Ten Signal Interface Processor with 4 Channels In and 5 Out (bit-Ten)
bit Ten - SIGNAL INTERFACE PROCESSOR
bit Ten is a multi-function digital processor featuring analog input, capable of transforming ordinary OEM or after-market system into a high-performance system. Provided with a 32 bit, 147 MHz clock speed DSP as well as 24 bit A/D and D/A converters, bit Ten is controlled by a software especially developed for signal treatment according to the vehicle acoustic peculiarities. Setting the parameters of each input single channel, setting the delays according to the listening position, adjusting crossovers and equalizers for each of the 5 output channels; all of these operations can be managed by the PC. Thanks to the integration of the USS technology, the bit Ten can also be connected to headunits featuring the “speaker load detection” circuit that would otherwise mute the audio signal output. During the installation phase, after converting the analog signal into digital, bit Ten automatically reconstructs a digital full-bandwidth stereo signal; de-equalizes the frequency response and, if necessary, reconstructs the central and subwoofer channels.The user can configure the output mode of each channel relative to the installed system.
Features -
• Audio DSP and converters 32 bit Cirrus Logic (Clock speed: 147 MHz) Digital Signal Processing chip and A/D D/A converters working in PCM at 48 kHz with 24 bit resolution. The processor speed allows the user to hear and verify in real time the changes applied during the tuning.
• Audio Inputs 4 independent high-level channels with automatic summing capability and USS (Universal Speakers Simulator), the technology that allows bit processors to work with headunits featuring the “speaker load detection” circuit; 1 analog low-level stereo auxiliary input; 1 high-level momentary audio interrupt input (with priority) on Phone Mute cable (settable through PC).
• Audio Outputs 5 independent analog PRE channels featuring adjustable level.