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Ground Shaker  GS-GML7T212B New

Black 12" Dual Sealed L7t Enclosure for 2014-2018, GMC Sierra Crew Cab

Item #99034

Condition:   Brand New

Product Highlights

  • Black 12"
  • Dual Sealed
  • L7t Enclosure
  • for 2014-2018, GMC 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.

$295.00

Reg. Price $345.00  Save $50.00
  Free 2-Years Warranty Included!

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Ground Shaker GS-GML7T212B Black 12" Dual Sealed L7t Enclosure for 2014-2018, GMC 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?
  • • 12" Black Dual Sealed L7t Enclosure
  • • Owner's Manual
Ground Shaker
Big Sound, Zero Compromise

Unleash massive, room-shaking bass from a compact under-seat design that keeps your truck’s interior uncluttered while delivering concert-quality audio. Built tough with high-density materials and reinforced with premium adhesives, this system is ready to handle years of rugged use, long hauls, and everyday adventures without missing a beat.

Turn Every Ride Into a Bass Adventure

Feel the power of every beat with heart-pounding lows that make your music come alive like never before. Precision-engineered dual chambers deliver tight, controlled bass with zero distortion, while optimized airflow ensures deep, resonant sound that fills your truck with rich, immersive energy. Every drive becomes an electrifying audio experience you can feel as much as hear.

 

Ground Shaker
Ground Shaker
Immersive Bass, Built to Last

Experience bass that hits hard and travels deep with a down-firing design that transforms your truck’s floor into a booming audio arena. Wrapped in rugged trunk liner carpet, this system resists scratches, spills, and everyday wear while keeping a sharp, tough look. Each subwoofer is carefully tuned with optimized volume to deliver balanced, powerful bass that fills every corner of your ride.


SPECIFICATIONS


  • Speaker Size : 12 Inches
  • Number Of Subwoofers : 2
  • Construction : 5/8 MDF
  • Volume : 1.45 Cu. Ft.
  • Enclosure Type : Sealed
  • Vehicle Make : GMC

FEATURES


Features:

  • Epic Bass Explosion: Experience heart-thumping low frequencies that make every song feel bigger, bolder, and more alive.
  • Dual Chamber Precision: Each of the two chambers is engineered for clean, controlled bass that hits hard without distortion.
  • Optimized Air Volume: 1.45 cubic ft³ airflow delivers deep, resonant bass for a richer, fuller soundstage.
  • Under-Seat Powerhouse: Compact design fits snugly under your rear seat, giving you massive sound without sacrificing cabin space.
  • Built for the Long Haul: Constructed from 5/8" high-density MDF and reinforced with premium Titebond glue and silicone for years of rugged reliability.
  • Down-Firing Bass Boost: Directs sound downward for maximum impact, turning your truck bed or floor into a bass arena.
  • Durable Rugged Finish: Wrapped in trunk liner carpet that resists scratches, spills, and daily wear, keeping your system looking sharp.
  • Balanced Subwoofer Output: Each sub receives 0.73 cubic ft³ of optimized volume, ensuring even, powerhouse bass across your vehicle.

 

Specifications:

  • Cutout Diameter: 11 1/8"
  • Air Volume: 1.45 Cubic Ft³
  • Chambers: 2 Individual Chambers
  • Volume Per Subwoofer: 0.73 Cubic Ft³
  • Mounting Depth: 6 1/2"
  • Height: 8”
  • Length: 49 1/2"
  • Depth: 16"
  • Material: 5/8" High-Density MDF Wood
  • Finish: Durable Trunk Liner Carpet
  • Sealant: High-Quality Titebond Silicone
  • Glue: High-Quality Titebond Wood Glue
  • Terminals: 2 Binding Post Terminals
  • Placement: Fits Under Rear Seat
  • Orientation: Down Firing
  • UPC:
  • Weight: 43
  • 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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