Stealthbox SB-GM-SLVCC2/12TW3/BK - Subwoofer JL Audio - Free user manual and instructions

Product Type	Custom-Fit Subwoofer Enclosure with Loaded Subwoofer
Brand	JL Audio
Model	Stealthbox SB-GM-SLVCC2/12TW3/BK
Vehicle Fitment	Select Chevrolet Silverado / GMC Sierra Crew Cab (specific years, see manual)
Subwoofer Size	12 inches
Subwoofer Model	JL Audio 12TW3 (Thin-Line)
Impedance	4 ohms (single voice coil)
Power Handling (RMS)	400 Watts
Peak Power Handling	800 Watts
Frequency Response	27 Hz – 200 Hz
Enclosure Type	Sealed (Acoustic Suspension)
Enclosure Material	Fiberglass Composite
Finish	Black Carpet (BK)
Overall Width	Approx. 15 inches (381 mm)
Overall Height	Approx. 10 inches (254 mm)
Overall Depth	Approx. 5 inches (127 mm)
Net Weight	Approx. 22 lbs (10 kg)
Mounting Type	Vehicle-Specific (Bolts into factory locations)
Wiring Requirement	Accepts up to 8 AWG power wire
Recommended Amplifier Power	200 – 400 Watts RMS at 4 ohms
Cleaning Instructions	Wipe with a dry or slightly damp cloth; avoid solvents
Safety Notes	Professional installation recommended; secure enclosure to prevent movement
Spare Parts Availability	Contact JL Audio authorized dealer for replacement grilles or wiring harness
Repairability	Subwoofer can be serviced by authorized JL Audio service center

Frequently Asked Questions - Stealthbox SB-GM-SLVCC2/12TW3/BK JL Audio

What vehicles is the JL Audio Stealthbox SB-GM-SLVCC2/12TW3/BK compatible with?

Does the Stealthbox come with a subwoofer already installed?

What is the power handling of this subwoofer?

What impedance is the subwoofer?

Do I need an external amplifier?

Can I install the Stealthbox myself?

What is the frequency response of the subwoofer?

Is the enclosure ported or sealed?

How do I clean and maintain the Stealthbox?

What if the subwoofer stops working?

USER MANUAL Stealthbox SB-GM-SLVCC2/12TW3/BK JL Audio

Black 3D-printed object with abstract geometric cutouts and a circular feature on top (no text or symbols)

Stealthbox®

INSTALLATION GUIDE for the

SB-GM-SLVCC2/12TW3

SKU# 94580 - 94583

2007-2013 Chevy Silverado/GMC Sierra Crew Cab

Enclosure Type: Sealed

Driver Type: 12TW3-D8

Nominal Impedance: 2 ohms

Continuous Power Handling: 800 watts (RMS method)

SB-GM-SLVCC2/12TW3 INSTR_SKU#011370

! IMPORTANT

If you choose to perform the installation yourself, it is absolutely vital that the Stealthbox ^™ be properly mounted to the vehicle according to these instructions. Failure to mount the enclosure properly presents two problems:

1) The sub-bass performance will suffer due to the movement of the enclosure caused by the force exerted by the woofer(s).
2) A loose enclosure presents a serious safety hazard in the event of a collision or sudden deceleration.

INSTALLATION DIFFICULTY:

ESTIMATED TIME: 1/2 HOUR

JL AUDIO - Quality & Design - SBX STEALTHBOX®

Thank you for choosing a JL Audio Stealthbox* for your automotive sound system. With proper installation, your new vehicle-specific enclosed subwoofer system will deliver years of listening pleasure.

We strongly recommend that you have your new Stealthbox® installed by your authorized JL Audio dealer. The installation professionals employed by your dealer have the necessary tools and experience to disassemble and reassemble your vehicle properly. If you prefer to perform your own installation, please read this installation guide completely before beginning the process.

INCLUDED HARDWARE

BOM ID Qty SKU Description 1 1 64580 GM Sierra/Silverado SB 2 1 150685 GM Sierra/Silverado Drivers Side Bracket 3 2 151095 3/8" Flat Washer 4 2 151081 3/8" Lock Washer 5 2 151079 3/8-16 x 1-1/4" Hex Bolt 6 1 150686 GM Sierra/Silverado Passenger Side Bracket

BOM ID	Qty	SKU	Description
1	1	64580	GM Sierra/Silverado SB
2	1	150685	GM Sierra/Silverado Drivers Side Bracket
3	2	151095	3/8" Flat Washer
4	2	151081	3/8" Lock Washer
5	2	151079	3/8-16 x 1-1/4" Hex Bolt
6	1	150686	GM Sierra/Silverado Passenger Side Bracket

POWER RECOMMENDATION

JL Audio recommends high quality amplifiers such as the JL Audio HD750/1. The diagram below shows the recommended crossover settings for the HD750/1. For a detailed description of the amplifier settings, consult the owner's manual for the amplifier. If another amplifier is being used, please reference this illustration and use similar settings on that amplifier.

Status Off | HP | LP Filter Mode 12dB | 24dB Filter Slope 80 120 60 200 50 500 Filter Freq. (Hz) Input Sens. Low | High Input Voltage 0 | 180 deg. Output Polarity Off | 30Hz Infrasonic Filter JL AUDIO, HD750/1 Monoblock Amplifier

CONNECTIONS

Using quality power, signal, and speaker wire is essential in ensuring the performance of your Stealthbox ^® . JL Audio recommends using a 4 AWG power kit such as the XD-PCS4-1B for your Stealthbox ^® amplifier. Other kits are available should you be using more than one amplifier. Signal wire such as the JL Audio Premium Audio Interconnect Cables should be used to provide signal for both channels of the amplifier. JL Audio recommends using 12AWG speaker wire for subwoofers such as our XC-BCS12-25.

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STEP 1

Empty out the rear seat area and fold the rear seats up.

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STEP 2

Locate the rear seat bracket on the driver's side.

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STEP 3

Remove the factory nut from the rear seat bracket. Place the Driver's Side Bracket over the factory stud as shown.

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STEP 4

Reinstall the factory nut and hand tighten. Repeat the process for the passenger side using the Passenger's Side Bracket.

Page 4 • JL Audio, Inc., 2017 Continued on Next Page

SB-GM-SLVCC2/12TW3 INSTR_SKU#011370

3D mechanical component with threaded fastener and mounting bracket (no text or symbols visible)

STEP 5

Attach speaker cable to the terminal cup, place the Stealthbox ^® into position, and align the holes in the Brackets with the threaded inserts in the back of the enclosure.

Secure each of the Brackets to the enclosure using a 3/8 - 16 x 1-1/4" Hex Bolt, a 3/8" Lock Washer, and a 3/8" Flat Washer as shown.

Close-up of a textured gray surface with a small dark object and a light spot, possibly part of a device or fixture (no visible text or symbols)

STEP 6

Tighten the 3/8 - 16 x 1-1/4" Hex Bolt and the factory nut.

Close-up of a car seatbelt buckle and rear wheel, showing no text or symbols

STEP 7

Repeat for the passenger's side.

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STEP 8

Fold the rear seats back down to fully secure the enclosure.

SB-GM-SLVCC2/12TW3 INSTR_SKU#011370

CONGRATULATIONS!

You have completed the installation for this model! Enjoy your new Stealthbox ^® !

Interior view of a car seat with visible seatbelt and dashboard (no text or symbols)

MID/HIGH FREQUENCY DRIVER FITMENT

A variety of JL Audio coaxial and component systems will fit in the factory speaker locations of your vehicle.

Front Speaker Size / Location: 6-1/2"- Front Doors Fits JL Audio Models: TR650-CXI, TR650-CSI, C2-650x, C2-650, C3-650, C5-650x, C5-650, & ZR650-CSI

Rear Speaker Size / Location: 6-1/2"- Rear Door Fits JL Audio Models: TR650-CXi, TR650-CSI, C2-650x, C2-650, C3-650, C5-650x, C5-650, & ZR650-CSI

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JLA-SKU# 011370 • ver. 02.28.2017 • 10369 NORTH COMMERCE PARKWAY • MIRAMAR, FLORIDA • 23025 • USA