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Ground Shaker  GS-NGMP212B New

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

Item #99037

Condition:   Brand New

Product Highlights

  • 12 inch subwoofer
  • dual ported box
  • GMC Sierra sub
  • Ext-Cab audio enclosure
  • black bass box

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

$305.00

Reg. Price $405.00  Save $100.00
  Free 2-Years Warranty Included!

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Ground Shaker GS-NGMP212B 12" Black Dual Ported 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 Sub Box
  • • Owner's Manual
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Powerful Dual-Ported Bass

This 12" dual-port subwoofer enclosure features a 11 1/8" cutout diameter and two individual chambers, each with 0.81 ft³ of air volume, delivering deep, full-range bass. Tuned at 36 Hz and equipped with two precision slot ports, it ensures rich, punchy lows that fill your cabin with clear sound. Lightweight at 38 lbs and with a 6 3/4" mounting depth, it’s easy to install while providing maximum bass performance.

Perfect Fit, Maximum Bass

Measuring 8 1/4" in height, 54 1/4" in length, and 13 1/2" in depth, this dual-port subwoofer enclosure is designed to fit perfectly under your vehicle’s rear seat. Its roomy internal dimensions maximize airflow, producing deep, powerful bass that transforms your audio experience. Compact yet performance-driven, it delivers big sound without taking up valuable cabin space.

 

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Kicker_KM
Durable Build, Deep Bass

Built from 5/8" high-quality MDF wood, this subwoofer enclosure is engineered for strength and long-lasting performance. The durable trunk liner carpet finish, combined with Titebond silicone sealing and wood glue, ensures an airtight design for rich, distortion-free bass. Equipped with 2 binding post terminals, it provides secure connections for consistent, high-powered sound 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 Sierra

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 design
  • 2007 models fit only old body style
  • Will not fit trucks with V-shape hump (use JCHV models for V-shape 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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