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Ground Shaker  GS-NGMPK28B

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

Item #99048

Condition:   Brand New

Product Highlights

  • 8 inch subwoofer
  • dual solobaric box
  • ported bass enclosure
  • GMC Sierra Ext-Cab
  • black sub box

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

$310.00

Reg. Price $390.00  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-NGMPK28B 8" Black Dual Solobaric 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?
  • • 8" Black Dual Solobaric Ported Sub Box
  • • Owner's Manual
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Compact Power Under Your Seat

Experience booming bass without sacrificing space! This dual-chamber subwoofer features a 7 1/4" cutout, 36 Hz tuning, and 1.62 ft³ total air volume for deep, punchy low frequencies. With dual slot ports and a sleek 38 lb design, it delivers high-performance sound perfectly under your rear seat.

Perfect Fit, Maximum Impact

Designed to slide seamlessly under your rear seat, this subwoofer measures 8 1/4” H × 54 1/4” L × 13 1/2” D for a snug, hassle-free installation. Its low-profile design doesn’t compromise on performance, delivering deep, powerful bass. Upgrade your sound system with a compact solution that fits perfectly and sounds phenomenal.

 

Kicker_KM
Kicker_KM
Built to Last, Sounds Incredible

Crafted from 5/8" high-quality MDF wood and carpeted with a durable trunk liner finish, this subwoofer is as tough as it is stylish. Sealed and glued with premium Titebond materials, it ensures long-lasting performance and airtight sound. Dual binding post terminals make installation easy while delivering clean, powerful bass every time.


SPECIFICATIONS


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

FEATURES


Specifications:

  • Cutout Diameter: 7 1/4"
  • 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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