Garage
Shop

JL Audio Stealthbox® SB-GM-AVAL/12TW3

Custom fit subwoofer enclosure for select 2002-2013 vehicles from Chevrolet, Cadillac

JL Audio
Shop all JL Audio
Product videos
highlight-star-icon

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Dual JL Audio 12TW3-D4
• 800 Watts RMS Power Handling
• Stealthbox seamlessly replaces the factory mid-gate

See compatible vehicles Learn more about the sbgmaval12tw3

We apologize

This item has been discontinued

Product Highlights


• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Dual JL Audio 12TW3-D4
• 800 Watts RMS Power Handling
• Stealthbox seamlessly replaces the factory mid-gate

Description


JL Audio brand icon

Authorized dealer


 

Subwoofer Features:

  • Two JL Audio 12TW3-D4 Subwoofer
  • Power Handling:
    • RMS: 800 watts total / 400 watts each
  • Recommended power range: 400 - 800 watts RMS
  • Wired to a 4 ohm load
  • Injection molded, mica-filled polypropylene cone
  • Rubber surround
  • No pole vent: permits mounting close to rear wall of enclosure.
  • Very small sealed enclosure volume requirements
  • Very long linear excursion capability
  • DMA-optimized motor designs
  • Patented "concentric tube" architecture
  • Patented "floating cone attach method" technology
  • Cast alloy frame
  • Aluminum-alloy dust cap and rear cap with JL Audio logo
  • Precision-built in USA at JL Audio's Miramar, Florida factory
  • Magnet: Single stacked
  • Frequency Response: 22-200 Hz
  • Sensitivity: 84.11 dB
  • Xmax: 15.2 mm
  • Matching Amplifier: JL Audio XD1000/1v2
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty

Enclosure Features:

  • Compatible with select 2002-2013 vehicles from Chevrolet, Cadillac
  • Forward-firing design
  • Sealed fiberglass enclosure
  • Steel mesh grille included
  • Stealthbox® seamlessly replaces the factory mid-gate
  • Maintains folding function to allow access between cabin and bed
  • Black texture coated finish
  • Rear glass storage is lost
  • Will not fit Hummer H2 SUT
  • Binding post terminals for secure and sturdy connection and installation
  • OEM Color: All
  • Color Match Grade: Excellent


Color Matching your Stealthbox®:

Some JL Audio Stealthboxes are not designed to perfectly match OEM colors. Some colors will contrast with OEM colors in order to provide a stylish setup. If you are looking for the closest color match, please select the JL Audio Stealthbox® color that is as close to your OEM color as possible and indicate your vehicle's interior color when ordering

Carpet Color Grade Identification
Perfect Actual exact factory color and texture (dye lot may differ slightly)
Excellent Precise color match, different texture
Good Very close to factory shade/tone
Fair Same basic color, different shade/tone
Poor Same basic color, substantially different shade/tone
Contrasts Not intended to match any factory color. Usually black. Good choice if no Good or better color match exists

Message from JL Audio: Our goal is to provide all Stealthbox® products in colors that match well with factory interiors. Because of availability issues with carpet colors, some Stealthbox® colors are not precise matches at this time. The match grades above give you an indication of how precise our color match is for each Stealthbox® model.



JL Audio SB-GM-AVAL/12TW3 owner’s manual

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

  • 2002 Cadillac Escalade EXT
  • 2002 Chevrolet Avalanche 1500
  • 2002 Chevrolet Avalanche 2500
  • 2003 Cadillac Escalade EXT
  • 2003 Chevrolet Avalanche 1500
  • 2003 Chevrolet Avalanche 2500
  • 2004 Cadillac Escalade EXT
  • 2004 Chevrolet Avalanche 1500
  • 2004 Chevrolet Avalanche 2500
  • 2005 Cadillac Escalade EXT
  • 2005 Chevrolet Avalanche 1500
  • 2005 Chevrolet Avalanche 2500
  • 2006 Cadillac Escalade EXT
  • 2006 Chevrolet Avalanche 1500
  • 2006 Chevrolet Avalanche 2500
  • 2007 Cadillac Escalade EXT
  • 2007 Chevrolet Avalanche
  • 2008 Cadillac Escalade EXT
  • 2008 Chevrolet Avalanche
  • 2009 Cadillac Escalade EXT
  • 2009 Chevrolet Avalanche
  • 2010 Cadillac Escalade EXT
  • 2010 Chevrolet Avalanche
  • 2011 Cadillac Escalade EXT
  • 2011 Chevrolet Avalanche
  • 2012 Cadillac Escalade EXT
  • 2012 Chevrolet Avalanche
  • 2013 Cadillac Escalade EXT
  • 2013 Chevrolet Avalanche

Best selling similar products

JL Audio Stealthbox® SB-GM-SLVCRW/10TW3

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Dual JL Audio 10TW3-D4
• 800 Watts RMS
• For 1999-2006 Chevrolet Silverado / GMC Sierra Crew Cab Trucks
• Stealthbox Installs neatly behind the rear seat

(1)

$1599.99

List price $1599.99

JL Audio Stealthbox® SB-GM-SLVCC4/12TW3

•12" 4 ohm Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with 2 12TW3 Subwoofer
• 800W RMS • For 2019-Up Chevrolet Silverado / GMC Sierra 1500 Crew Ca
• Replaces the lower cushion and storage unit

(4)

$2199.99

List price $2199.99

JL Audio Stealthbox® SB-J-GCHWK2/10W3v3/BK

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Single JL Audio 10W3v3-2
• 500 Watts RMS Power Handling
• Stealthbox Installs into passenger-side rear cargo panel

(3)

$1099.99

List price $1099.99

JL Audio Stealthbox® SB-F-MUSCPE/12TW3

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Single JL Audio 12TW3-D4
• 400 Watts RMS Power Handling
• Stealthbox seamlessly installs in the passenger side rear corner of the trunk

$1299.99

List price $1299.99

JL Audio Stealthbox® SB-CAN-G2MVX3D/10TW3

• 400W Single 10" Sealed Subwoofer Enclosure
• Compatible with select 2019-2024 vehicles from Can-Am Vehicles
•10" TW3-D4 Subwoofer
• FIberglass enclosure with OEM-matched carpet
• Include a steel mesh woofer grille

(1)

$1299.99

List price $1299.99

JL Audio Stealthbox® SB-GM-4GSUVCNSL/10TW1

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Single JL Audio 10TW1-2
• 300 Watts RMS Power Handling
• Stealthbox Installs Under Center Console

(2)

$1149.99

List price $1149.99

JL Audio Stealthbox® SB-D-QDRAMD/10TW1

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Two JL Audio 10TW1-4 Subwoofers
• RMS: 600 watts per pair / 300 watts each
• For 2002-Up Dodge Ram
• Stealthbox Installs underneath rear seat

(3)

$1599.99

List price $1599.99

JL Audio Stealthbox® SB-GM-VETC6/10W1v3

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Single JL Audio 10W1v3-2
• 300 Watts RMS Power Handling
• Stealthbox Installs neatly into the rear corner of the hatch

(2)

$1099.99

List price $1099.99

JL Audio Stealthbox® Stealthbox® SB-TE-3G1-10TW1

• Loaded Vehicle Specific Stealthbox Enclosure with Single JL Audio 10TW1 Subwoofer
• 300 Watts RMS Power Handling
• Installs under the rear deck

$1299.99

List price $1299.99

JL Audio Stealthbox® SB-GM-CAM6G/12W6v3

• 600W Single 12" Sealed Subwoofer Enclosure
• 12" TW3-D4 Subwoofer
• FIberglass enclosure with OEM-matched carpet
• One set of binding post Terminals

(1)

$1499.99

List price $1499.99

Specifications & Details


Subwoofer Specifications
Subwoofer Design
Round / Circle
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
RMS Power Handling
400 watts
Total RMS Power Handling
800 watts
Woofer Surround
Rubber
Woofer Composition
Mica Injected Polypropylene - MIPP
Sensitivity
84.11 dB
Frequency Response
22 - 200 Hz
Xmax (millimeters)
15.2 mm
Subwoofer Size
12"
Enclosure Specifications
Number of Subwoofers
2
Box Style/Shape
Vehicle Specific
Number of Terminals
1
Terminal Type
Binding posts
Box Exterior Color
Black
Box Finish
Texture coated finish
Final Wired Impedance
4-ohm
Type of Enclosure
Loaded
Box Type
Sealed
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

SB-GM-AVAL/12TW3

Weight:

111.00lbs

Internal SKU:

sbgmaval12tw3

Internal Product ID:

98103

Product and How-to Videos


Customer Ratings & Reviews



5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found

Related Searches


Save up to 10 different vehicles in your garage

Add vehicle
Loading...
Identify your vehicle and submodel details
  • Owner’s manual
  • Vehicle’s insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver’s side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon