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NVX BOOST Box - 2008-2013 Chevrolet Silverado, GMC Sierra - LVE-GM-SLVECG2-S12S

For select 2008-2013 Silverado 1500 and Sierra 1500 Extended Cab - Single 12" 400W RMS Loaded Down Firing BOOST Sealed Truck Enclosure

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• Custom-Fit BOOST Sealed truck enclosure with 1 12" S Series Subwoofer
• Compatible with select 2008-2013 Silverado 1500 and Sierra 1500
• 400 watts RMS (800 watts Peak)
• Final Impedance: 2-ohm

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List price $263.99
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$209.99

 with warranty
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Current Promotions (1 offer)


Get the most out of your Loaded Enclosure with the NVX SDTK20. Eliminates road noise, quiet vibrations, and increase the sound quality and output of audio system, 50%. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

NVX BOOST Box - 2008-2013 Chevrolet Silverado, GMC Sierra - LVE-GM-SLVECG2-S12S

40% off


Priced separately $259 98

Promo Savings of $20 00

Total price:

$239 98

Description


NVX brand icon

Authorized dealer

Product Details:

  • Custom-Fit BOOST Sealed truck enclosure with 1 12" S Series Subwoofer
  • Compatible with select 2008-2013 Silverado 1500 and Sierra 1500
  • 3/4" medium-density fiberboard construction covered with Carpet
  • Designed for installation behind the rear seat
  • Loaded with one NVX SMW12D4 subwoofer
  • Power Handling:
    • Peak: 800 watts
    • RMS: 400 watts
  • Final Impedance: 2-ohm
  • Carbon Fiber Reinforced Polypropylene cone
  • Butyl Rubber surround
  • 53 oz Y30 high energy Ferrite magnet motor structure
  • Frequency Response: 25 - 350 Hz
  • Sensitivity: 88 dB
  • Unloaded enclosure also available here
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Frequently Asked Questions (FAQ)


Universal boxes won't fit the tight floor contour of the 2008-2013 Silverado/Sierra Extended Cab. This enclosure is CNC-machined to fit perfectly under the rear passenger seat, providing 400W RMS of bass without taking up footwell space.
The 2008-2013 GM Extended Cabs have very shallow under-seat clearance. This sealed design provides the 0.50 cu. ft. needed for tight, accurate bass. A ported version would be too tall, interfering with the seat bench and compromising passenger comfort.
The automotive-grade carpet is durable, but standing liquid can swell the 3/4" MDF. To safeguard your box from spills or wet gear, we recommend installing an NVX all-weather floor mat to keep the mounting area underneath the seat dry.
No, the rear seat retains its full folding and locking capability. To ensure the down-firing 12" sub doesn't rattle against the metal floor, we suggest applying NVX SD126 sound deadening to the floor pan to eliminate mechanical noise.
Yes, adding polyfill can help the 12" SMW sub "see" a slightly larger volume, smoothing out the low-end. To maintain a clean signal for this deeper bass, use NVX XIV25 V-Series RCA cables to ensure a noise-free feed from your head unit.
The box is built with high-density MDF and bonded with aliphatic wood glue to handle 400W RMS without flexing. To isolate the driver and prevent vibrations between the box and floor, we suggest using NVX silicone speaker baffles.
Yes, the VE-GM-SLVECG2-S12S is the unloaded version. It features a 4.75" mounting depth, though the loaded L-version is recommended as the air volume is specifically tuned for the pre-installed NVX shallow-mount 12" driver.

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Specifications & Details


Compatible vehicle types
Compatible vehicle types
Car/Truck/SUV/Van
Subwoofer Specifications
Series
S Series
Subwoofer Design
Round / Circle
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
RMS Power Handling
400 watts
Total RMS Power Handling
400 watts
Peak Power Handling
800 watts
Total Peak Power Handling
800 watts
Woofer Surround
Butyl Rubber
Woofer Composition
Carbon Fiber Reinforced Polypropylene
Sensitivity
88 dB
Frequency Response
25 - 350 Hz
Xmax (millimeters)
8 mm
Subwoofer Size
12"
Enclosure Specifications
Number of Subwoofers
1
Box Style/Shape
Vehicle Specific
Wood Thickness
3/4"
Number of Terminals
1
Terminal Type
Spring posts
Box Exterior Color
Black
Box Finish
Carpet
Final Wired Impedance
2-ohm
Type of Enclosure
Loaded
Box Type
Sealed
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

NVX

Model Number:

LVE-GM-SLVECG2-S12S

Weight:

26.00lbs

Internal SKU:

lvegmslvecg2s12s

Internal Product ID:

204433

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.