JL Audio SB-N-370-10W3v3 User Manual

SB-N-370/10W3v3 INSTR_SKU# 011306

I N S T A L L A T I O N G U I D E

for the

SB-N-370/10W3v3

SKU#94480

2008+

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.

If you choose to perform the installation yourself, it is absolutely vital that
the Stealthbox
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.

®

be properly mounted to the vehicle according to these

S T E P 1

Empty out the trunk of the car so that you have a clean area
to work in.

S T E P 2

Lift out the rear carpet.

INSTALLATION
D I F F I C UL T Y:

OU T
OF

15

ESTIMATED TIME:
1 HOUR

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. Also, keep in mind that your warranty coverage

extends to 2 years if your system is installed or approved by your authorized JL Audio dealer. If you

prefer to perform your own installation, please read this installation guide completely

before beginning the process.

S T E P 3

On each of the two custom brackets, install the Speed Nuts
as shown.

Continued on Next Page

SB-N-370/10W3v3 INSTR_SKU# 011306

S T E P 4

The “hooked end” of each of the Custom Brackets hooks
onto the bottom edge of the plastic trim along the front of
the hatch area of the car as shown.

S T E P 5

Once the brackets are installed, align them with the factory
installed threaded bosses as indicated.

S T E P 6

Secure the Custom Brackets with the supplied Hex Head
Bolt, Split Lock Washer and Flat Washer, tighten all fasteners.

S T E P 8

With both Allen Head Studs installed, put the carpet for the
rear area back into the car.

S T E P 9

Locate the two studs by pressing down on the carpet while
making sure that carpet remains centered.

S T E P 1 0

Make two small “x” cuts where the Allen Head Studs are so
that they will come up through the carpet.

Page 2 • JL Audio, Inc 2009

S T E P 7
Install Allen Head Stud into Speed Nut installed in STEP 3

S T E P 1 1

With the woofers removed, install the Stealthbox®, having
the Allen Head Studs come up through the bottom of the
enclosure.

Continued on Next Page