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JL Audio :: SB-GM-SLVCC2/12TW3/BK :: $1,399.99


Item# 46828

Two 12TW3-D4 12" Stealthbox® for 2007-2013 Chevrolet Silverado / GMC Sierra Crew Cab Trucks with Ebony interior

Sorry, this product is no longer available.

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What's Included:

  • Two JL Audio 12TW3-D4 Subwoofer
  • Owner's Manual

Product Highlights:

  • Injection molded, mica-filled polypropylene cone
  • Sensitivity: 84.11 dB
  • Magnet: Single stacked
  • Wired to a 4 ohm load
  • Two JL Audio 12TW3-D4 Subwoofer
  • DMA-optimized motor designs
  • RMS: 800 watts total / 400 watts each
  • No pole vent: permits mounting close to rear wall of enclosure.
  • Patented "floating cone attach method" technology
  • Frequency Response: 22-200 Hz
  • Rubber surround
  • Recommended power range: 400 - 800 watts RMS
  • Very small sealed enclosure volume requirements
  • Very long linear excursion capability
  • Patented "concentric tube" architecture
  • 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
  • Xmax: 15.2 mm
  • Matching Amplifier: JL Audio XD1000/1v2

Whether your truck is used to work hard or play even harder, this vehicle brings a whole lot to the table: from great towing and hauling capabilities to powerful engine options, a spacious interior and a smooth ride. Amidst an evolving truck market complicated with special features and touch screens, the massive GM Crew Cab trucks have stuck to their model of simplicity and comfort.

Our Stealthbox® enhances this design by adding quality bass without losing precious space or functionality. The Stealthbox® slips under the truck's rear seat and features two of our revolutionary 12TW3 thin-line subwoofers, giving you absolutely stellar sub-bass impact and quality. We even left a perfect spot for a clean amplifier installation!

The Hard Data: Contains two 12TW3-D4 subwoofers in a down-firing sealed enclosure. 800 watt power handling. Wired for a 4 ohm load. Installs under rear seat. Will not affect the folding of the rear seat or rear leg room.Will not fit “Classic” models.


Impedance (Per Voice Coil) 4 ohms
RMS Power Handling 400 watts
Voice Coil(s) Dual
Woofer Surround Rubber
Box Type Sealed
Compatible Vehicle Make and Model Chevy Silverado, GMC Sierra
Subwoofer Design Round / Circle
Box Style/Shape Vehicle Specific
Number of Subs/Speakers 2
Subwoofer Size 12"
Frequency Response 22 - 200 Hz
Final Wired Impedance 4 ohms
Total RMS Power Handling 800 watts
Woofer Composition Mica Injected Polypropylene (MIPP)
Sensitivity 84.11 dB
Xmax (millimeters) 15.2 mm
Number of Terminals 1
Terminal Type Binding posts
Box Exterior Color Black
Box Finish Carpet
Type of Enclosure Loaded


Enclosure Features:

  • 2007-2013 Chevrolet Silverado / GMC Sierra Crew Cab Trucks
  • Also available in the following OEM Colors:
  • Light Cashmere: JL Audio SB-GM-SLVCC2/12TW3/TN
  • Light Titanium: JL Audio SB-GM-SLVCC2/12TW3/GA
  • Dark Titanium: JL Audio SB-GM-SLVCC2/12TW3/DGwith Ebony interior
  • Down-firing design
  • Sealed enclosure
  • Stealthbox® installs neatly under rear seat
  • Will not affect the folding of the rear seat
  • Will not affect rear leg room
  • Will not fit "Classic" models
  • Binding post terminals for secure and sturdy connection and installation
  • OEM Color: Ebony
  • Color Match Grade: Good
  • UPC: 699440945813
  • Weight: 84
  • Authorized Internet Dealer
*Warranty: 1 Year Manufacturer warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 30 days from the original date of purchase with proper return authorization. After the 30 day time period, products must be returned to their original manufacturer for the remainder of the manufacturer's warranty period.