INSTALLATION GUIDE
for the
SB-GM-SLVCC4/12TW3
SKU# 94668
2019-Up Chevrolet Silverado Crew Cab & GMC Sierra Crew Cab
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.
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
DIFFI CULT Y:
ESTIMATED TIME:
1 HOUR
Enclosure Type: Sealed
Driver Type: 12TW3-D8
Nominal Impedance: 2 ohms
Continuous Power Handling: 800 watts (RMS method)
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1
5
OUT
OF
SB-GM-SLVCC4/12TW3 INSTR_SKU# 011512
INCLUDED HARDWARE
4321
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Page 2 • JL Audio, Inc., 2019
SB-GM-SLVCC4/12TW3 INSTR_SKU# 011512
BOM ID Qty SKU Description
1 2 154001 Bracket
2 4 153988
3/8” Flat Washer
3 4 153987 3/8” Split Lock Washer
4 4 154038 3/8 - 16 x 1-1/2” Hex Head Bolt
POWER RECOMMENDATION
JL Audio recommends high quality ampliers such as the JL Audio XD600/1v2. The diagram below shows the recommended crossover settings for the XD600/1v2. For a detailed description of the
amplier settings, consult the owner’s manual for the amplier. If another amplier is being used, please reference this illustration and use similar settings on that amplier.
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® amplier. Other kits are available should you be using more than one amplier. Signal wire such as the JL Audio Premium Audio Interconnect Cables should be used to provide signal for
both channels of the amplier. JL Audio recommends using 12 AWG speaker wire for subwoofers such as our XC-BCS12-25.
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Page 3 • JL Audio, Inc., 2019
SB-GM-SLVCC4/12TW3 INSTR_SKU# 011512
Page 4 • JL Audio, Inc., 2019 Continued on Next Page
STEP 8
Reinstall the two seat bolts, and hand tighten.
STEP 7
Carefully lower the enclosure into position,
allowing each Bracket to fit over the seat
bracket. Align the hole in each Bracket with the
factory seat bolt hole.
STEP 6
Place the Stealthbox® in the vehicle.
STEP 5
Align a Bracket to the back of the enclosure
as shown. Slide a 3/8” Split Lock Washer and
a 3/8” Flat Washer over each of two 3/8 - 16
x 1-1/2” Hex Head Bolts, pass an assembly
through each slot in the Bracket, into the
threaded inserts on the back of the enclosure,
and hand tighten.
Repeat for the opposite side.
STEP 4
Remove the seat bolt.
Repeat for the opposite side.
STEP 3
Locate the outer seat bolts.
STEP 2
Fold the seat bottoms up.
STEP 1
Empty the rear seat area.
SB-GM-SLVCC4/12TW3 INSTR_SKU# 011512
Page 6 • JL Audio, Inc., 2019
CONGRATULATIONS!
You have completed the installation for this model! Enjoy your new Stealthbox®!
All specifications are subject to change without notice. “JL Audio®” and “How we play®” are registered trademarks of JL Audio, Inc. “Ahead of the Curve” and its respective logo are trademarks
of JL Audio, Inc.
Printed in USA • ©2019 JL Audio, Inc. • For more detailed information please visit us online at www.jlaudio.com.
(954) 443-1100
www.jlaudio.com
JLA-SKU# 011512 • ver. 01.06.2019 • 10369 NORTH COMMERCE PARKWAY • MIRAMAR, FLORIDA • 33025 • USA
®
MID/HIGH FREQUENCY DRIVER FITMENT
A variety of JL Audio coaxial and component systems will t in the factory speaker locations of you vehicle.
Location / OEM
Speaker Size
Suggested JL Audio Speaker Models
Coaxial Models Component Models
Front Doors /
6 x 9-inch
C1-690x
(1)
, C1-690tx
(1)
, C2-690tx
(1)
C2-650x
(1)
, C5-650x
(1)
C1-690
(1)
, C1-650
(1)
,
C2-650
(1)
,
C3-650
(1)
, C5-650
(1)
, C7-650cw
(1,2)
Rear Doors /
6.5-inch
C1-650x, C2-650x, C5-650x
C1-650, C2-650, C3-650,
C5-650, C7-650cw
(2)
1 - Installation may require adaptor, 2 - Component woofer only
STEP 12
Fold the seat bottoms back down.
ST E P 11
Connect speaker cable to the terminal cup on
the bottom of the enclosure.
Carefully lower the enclosure back into
position. Reinstall the seat bolts, and fully
tighten.
Route the cable as necessary.
STEP 10
Remove the seat bolts, and lift the enclosure
back up. Firmly tighten the lower 3/8 - 16 x
1-1/2” Hex Head Bolt.
Repeat for the opposite side.
STEP 9
Using a 9/16” open end wrench, firmly tighten
the upper 3/8 - 16 x 1-1/2” Hex Head Bolt.
Repeat for the opposite side.
SB-GM-SLVCC4/12TW3 INSTR_SKU# 011512
*011512*
