INSTALLATION GUIDE
for the
SB-J-JTGLAD/10TW1
SKU# 94681
2020 & Up Jeep Gladiator (JT)
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
DI FFICULT Y:
ESTIMATED TIME:
1 HOUR
Enclosure Type: Sealed
Driver Type: 10TW1-4
Nominal Impedance: 2 ohms
Continuous Power Handling: 600 watts (RMS method)
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1
5
OUT
OF
SB-J-JTGLAD/10TW1 INSTR_SKU# 011550
INCLUDED HARDWARE
4321 5
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Page 2 • JL Audio, Inc., 2020
SB-J-JTGLAD/10TW1 INSTR_SKU# 011550
BOM ID Qty SKU Description
1 1 152750 Passenger 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
5 1 152749 Driver Bracket
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., 2020
SB-J-JTGLAD/10TW1 INSTR_SKU# 011550
Page 4 • JL Audio, Inc., 2020 Continued on Next Page
STEP 8
Using a 10mm socket and wrench, remove the
two mounting nuts, then remove the hardtop
hardware storage box from the vehicle.
STEP 7
Unclip and remove the hardtop hardware
storage box lid. Remove the foam insert from
the hardtop hardware storage box to expose
the mounting nuts.
STEP 6
Using an E14 Torx socket and wrench, remove
the factory seat bracket bolt from each side of
the vehicle.
STEP 5
Remove the storage compartment from the
vehicle.
STEP 4
Using a 10mm socket and wrench, remove the
two screws from each side of the storage
compartment.
STEP 3
Open the storage compartment, and remove
the divider panels and mat to expose the
mounting screws.
STEP 2
Fold the seat bottoms up.
STEP 1
Empty the rear seat area.
SB-J-JTGLAD/10TW1 INSTR_SKU# 011550
Page 5 • JL Audio, Inc., 2020
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 • ©2020 JL Audio, Inc. • For more detailed information please visit us online at www.jlaudio.com.
(954) 443-1100
www.jlaudio.com
JLA-SKU# 011550 • ver. 02.20.2020 • 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 your vehicle.
STEP 9
Align the two holes in the Driver Bracket with
the two threaded inserts in the back of the
enclosure. 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, thread an assembly
through each hole in the Driver Bracket, into a
threaded insert, and hand tighten.
Repeat the process for the Passenger Bracket
on the other end of the enclosure.
SB-J-JTGLAD/10TW1 INSTR_SKU# 011550
ST EP 11
Connect speaker cable to the terminal cup on
the back of the enclosure, and route the cable
as necessary.
Reinstall the hardtop hardware storage box.
STEP 10
Carefully place the Stealthbox® into the vehicle,
and align the slots in the Driver Bracket and
Passenger Bracket with the factory seat bracket
holes.
Center the enclosure in the vehicle. Using an
E14 Torx socket and wrench, fully tighten the
two factory seat bracket bolts. Using a 9/16”
socket and wrench, fully tighten the four 3/8 -
16 x 1-1/2” Hex Head Bolts.
STEP 12
Fold the seat bottoms back down.
Location / OEM
Speaker Size
Suggested JL Audio Speaker Models
Coaxial Models Component Models
Dash
Upper / 3-1/2-inch C2-350x C7-350cm
Lower / 4-inch C1-400x, C2-400x C5-400cm
Roll Bar
Outer / 3-1/2-inch C2-350x
C7-350cm
Inner / 4-inch C1-400x, C2-400x C5-400cm
