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Ground Shaker  GS-NGMKK28B New

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

Item #99039

Condition:   Brand New

Product Highlights

  • 8 inch subwoofer
  • dual sealed box
  • GMC Sierra sub
  • Classic Ext-Cab 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.

$290.00

Reg. Price $390.00  Save $100.00
  Free 2-Years Warranty Included!

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Ground Shaker GS-NGMKK28B 8" Black Dual Sealed 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?
  • • 8" Black Dual Sealed Solobaric Sub Box
  • • Owner's Manual
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Dual-Chamber Bass Power

Experience deep, punchy bass with this 8" dual-sealed subwoofer enclosure featuring a 7 1/4" cutout diameter and two individual chambers, each with 0.89 ft³ of air volume. Its total air volume of 1.78 ft³ and precision mounting depth of 6 3/4" ensures rich, distortion-free sound that fills your cabin. Lightweight at 40 lbs, it’s easy to install while delivering high-performance audio for every ride.

Compact Design, Big Bass

Measuring 8 1/4" in height, 54 1/4" in length, and 13 1/2" in depth, this dual-chamber subwoofer box fits perfectly under your vehicle’s rear seat. Its spacious interior maximizes airflow, delivering deep, powerful bass for an immersive audio experience. Designed for a snug fit without sacrificing sound, it’s the perfect balance of size and performance.

 

Kicker_KM
Kicker_KM
Built to Last, Sound That Hits

Constructed with 5/8" high-quality MDF wood, this subwoofer enclosure is engineered for strength and durability. The carpeted trunk liner finish, along with Titebond silicone sealing and wood glue, ensures an airtight design for rich, distortion-free bass. Equipped with 2 binding post terminals, it delivers secure, high-performance connections for powerful, consistent sound every time.


SPECIFICATIONS


  • Speaker Size : 8 Inches
  • Number Of Subwoofers : 2
  • Construction : 5/8 MDF
  • Volume : 1.78 Cu. Ft.
  • Enclosure Type : Sealed
  • Vehicle Make : GMC Sierra

FEATURES


Specifications:

  • Cutout Diameter: 7 1/4"
  • Total Air Volume: 1.78 ft³
  • 2 Individual Chambers
  • Volume Per Subwoofer: 0.89 ft³
  • Weight: 40 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: 40
  • 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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