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Ground Shaker  GS-NGMPK212B

12" Black Dual Ported Solobaric Sub Box for 1999-2006 & 2007 Classic GMC Sierra Ext-Cab

Item #99052

Condition:   Brand New

Product Highlights

  • 12" Subwoofer Box
  • Dual Ported Solobaric
  • GMC Sierra Audio
  • Classic Ext-Cab
  • Truck Sound Upgrade

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping (No Minimum).
60 DAYS Price change protection.

$320.00

Reg. Price $400.00  Save $80.00
  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping (No Minimum).
60 DAYS Price change protection.

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Ground Shaker Authorized Dealer

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Ground Shaker GS-NGMPK212B 12" Black Dual Ported Solobaric Sub Box for 1999-2006 & 2007 Classic GMC Sierra Ext-Cab

We are an Ground Shaker authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • 12" Black Dual Ported Solobaric Sub Box
  • • Owner's Manual
Kicker_KM
Powerful Bass, Compact Design

Experience deep, punchy bass with this dual-chamber subwoofer featuring an 11 1/8" cutout and 36 Hz tuning for rich, low-end sound. Its 1.62 ft³ total air volume and dual slot ports deliver smooth, precise bass performance. Weighing just 38 lbs with a compact mounting depth of 6 3/4", it fits easily under your rear seat for a clean, high-performance upgrade.

Perfect Fit, Maximum Performance

Measuring 8 1/4” H × 54 1/4” L × 13 1/2” D, this subwoofer is designed to fit snugly under your rear seat. Its low-profile design saves space while delivering powerful, room-shaking bass. Upgrade your truck’s audio system with a compact solution that packs serious punch.

 

Kicker_KM
Kicker_KM
Durable Construction, Superior Sound

Built from 5/8" high-quality MDF wood and carpeted with a durable trunk liner finish, this subwoofer is made to last. Sealed and glued with premium Titebond materials, it ensures airtight performance and long-lasting reliability. Dual binding post terminals make installation simple while delivering clean, powerful bass every time.


SPECIFICATIONS


  • Speaker Size : 12 Inches
  • Number Of Subwoofers : 2
  • Construction : 5/8 MDF
  • Volume : 1.62 Cu. Ft.
  • Enclosure Type : Ported
  • Vehicle Make : GMC

FEATURES


Specifications:

  • Cutout Diameter: 11 1/8"
  • Total Air Volume: 1.62 ft³
  • Tuning Frequency: 36 Hz
  • 2 Individual Chambers
  • Volume Per Subwoofer: 0.81 ft³
  • 2 Slot Ports (H: 3.5” × W: 1.5” × L: 11.5”)
  • Weight: 38 lbs
  • Mounting Depth: 6 3/4"

 

Dimensions:

  • Height: 8 1/4”
  • Length: 54 1/4”
  • Depth: 13 1/2”

 

Construction:

  • 5/8" high-quality MDF wood
  • Carpeted with durable trunk liner finish
  • Sealed with high-quality Titebond silicone
  • Glued with high-quality Titebond wood glue
  • 2 Binding post terminals

 

Installation:

 

  • Fits under rear seat
  • Upward firing
  • 2007 fits only old body style
  • Will not fit trucks with V-shaped hump (use JCHV models for V-shaped hump)
  • UPC:
  • Weight: 38
  • Authorized Internet Dealer
Warranty: 2 Year(s) 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 2 Year(s) from the original date of purchase with proper return authorization.

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