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Ground Shaker  GS-GM18B New

Black 8" Single Sealed Enclosure for 2014-2018, Sierra Crew Cab

Item #98981

Condition:   Brand New

Product Highlights

  • Black
  • 8"
  • Single Sealed Enclosure
  • for 2014-2018
  • Sierra Crew Cab

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

$245.00

Reg. Price $295.00  Save $50.00
  Free 2-Years Warranty Included!

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Ground Shaker Authorized Dealer

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Ground Shaker GS-GM18B Black 8" Single Sealed Enclosure for 2014-2018, Sierra Crew 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 Single Sealed Enclosure
  • • Owner's Manual
Ground Shaker
Hidden Power, Explosive Bass

Transform your truck’s sound with a stealthy under-seat design that delivers deep, powerful bass without taking up visible space. The down-firing layout pushes low frequencies with extra richness while protecting your subwoofer from damage. Compact yet mighty, this enclosure packs massive output into a small footprint, making it perfect for tight spaces and clean, professional installations.

Precision Fit, Maximum Bass

Engineered to slide perfectly behind the driver’s side under your rear seat, this enclosure offers a seamless, factory-like installation. With 0.84?ft³ of optimized airspace, it delivers rich, punchy bass that elevates every song. Built from 5/8" high-quality MDF, it’s strong, durable, and vibration-resistant, ensuring long-lasting performance even under heavy use.

 

Ground Shaker
Ground Shaker
Clean Bass, Hassle-Free Setup

Experience deep, distortion-free bass with a premium airtight enclosure sealed with Titebond silicone for maximum clarity. A single binding post terminal makes wiring quick, secure, and reliable, getting your system up and running in no time. Weighing just 23 lbs, this lightweight design is easy to handle and install, all while maintaining rugged durability and superior build quality.


SPECIFICATIONS


  • Speaker Size : 8 Inches
  • Number Of Subwoofers : 1
  • Construction : 5/8 MDF
  • Volume : 0.84 Cu. Ft.
  • Enclosure Type : Sealed
  • Vehicle Make : GMC

FEATURES


Features:

  • Stealth Bass Upgrade: Hidden under-seat design delivers powerful bass without sacrificing visible space in your truck.
  • Down-Firing Performance: Engineered to fire downward for deeper, richer bass with added protection for your subwoofer.
  • Compact Power Design: Small footprint with impressive output, perfect for tight spaces and clean installs.
  • Driver-Side Custom Fit: Specifically designed to fit behind the driver’s side under the rear seat for a seamless look.
  • Optimized Air Space: 0.84 ft³ air volume provides the perfect balance of depth and punch for everyday listening.
  • Heavy-Duty MDF Build: Crafted from 5/8" high-quality MDF for strength, durability, and vibration resistance.
  • Premium Sealed Enclosure: Airtight construction using Titebond silicone ensures clean, distortion-free bass.
  • Quick and Secure Wiring: 1 binding post terminal allows fast, solid connections for reliable performance.
  • Lightweight and Easy Install: At just 23 lbs, it's easy to handle and install without compromising build quality.

 

Specifications:

  • Cutout Diameter: 7 1/8"
  • Air Volume: 0.84 ft³
  • Mounting Depth: 6 1/2"
  • Height: 8 1/2”
  • Length: 27 1/2"
  • Depth: 16 1/2"
  • 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
  • 1 Binding Post Terminal
  • Fits Under Rear Seat Behind the Driver’s Side
  • Down-Firing Design
  • UPC:
  • Weight: 23
  • 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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