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I N S T A L L A T I O N   G U I D E 

for the 

SB-GM-AVAL2/12TW3 

SKU# 94298

2001 - 2013 Chevy Avalanche/2002 - 2013 Cadillac Escalade EXT

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.

INSTALLATION

DIFFICULTY:

ESTIMATED TIME:

1 - 2  HOURS

 Enclosure 

Type:

  Sealed

 Driver 

Type:

  12TW3-D4

 Nominal 

Impedance:

  4 ohms

 

Continuous Power Handling:

  800 watts (RMS method)

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SB-GM-AVAL2/12TW3  INSTR_SKU# 011188

  

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.

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