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Ground Shaker  GS-30HZ212B New

Black 12" Dual Ported Competition 30-Hz Sub Box

Item #99328

Condition:   Brand New

Product Highlights

  • Black
  • 12"
  • Dual Ported
  • Competition
  • 30-Hz Sub 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 $355.00  Save $50.00
  Free 2-Years Warranty Included!

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Ground Shaker GS-30HZ212B Black 12" Dual Ported Competition 30-Hz Sub Box

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 Competition 30-Hz Sub Box
  • • Owner's Manual
Ground Shaker
30Hz Powerhouse Subwoofer Enclosure Built to Shake Streets

Built for those who demand more than just bass, this enclosure unleashes deep, ground-pounding lows that bring every track to life with authority. Its intelligently engineered port system pushes air with precision, delivering smooth, distortion-free performance even at high output levels. Constructed from rugged, high-grade MDF, it stands strong under intense pressure, giving you consistent, hard-hitting bass whether you're chasing SPL glory or upgrading your everyday ride.

High-Volume Enclosure for Serious Bass Systems

Engineered to handle extreme power without compromise, this enclosure features a massively reinforced front panel that keeps your sub locked in place for cleaner, more controlled output. Its generous internal space allows your woofer to operate freely, unlocking deeper extension and stronger overall performance. Designed with versatility in mind, it easily accommodates oversized, high-excursion subwoofers, making it a perfect match for demanding builds that require both strength and precision.

 

Ground Shaker
Ground Shaker
Clean Looks with Competition-Grade Reliability

Designed to look as good as it sounds, this enclosure features a durable, trunk-friendly finish that complements your ride while standing up to daily use. Every joint is tightly bonded and sealed to maintain consistent internal pressure, delivering crisp, efficient bass with zero unwanted leaks. With solid, user-friendly terminals built for dependable connections, installation stays clean and hassle-free—so you can focus on pushing your system to its full potential.


SPECIFICATIONS


  • Speaker Size : 12 Inches
  • Number Of Subwoofers : 2
  • Construction : 3/4 MDF
  • Volume : 3.98 Cu. Ft.
  • Enclosure Type : Ported

FEATURES


Features:

  • Competition-Level Deep Bass Performance: Engineered for serious bass lovers, this enclosure delivers powerful, low-frequency output tuned to hit hard at 30Hz—perfect for American-style SPL builds and daily drivers alike.
  • Precision Slot Port Design: Built with a carefully calculated slot port that maximizes airflow efficiency, reducing distortion while enhancing deep, clean bass response.
  • Heavy-Duty MDF Construction: Crafted from premium 3/4" MDF wood, ensuring long-lasting durability and solid acoustic performance even under extreme bass loads.
  • Extra-Thick Front Baffle Strength: Reinforced with a 1 3/8" thick front baffle to handle high-powered subwoofers without flexing, giving you tighter and more accurate bass.
  • Spacious High-Output Air Volume: Designed with 3.98 cubic feet of internal air space, allowing your subwoofer to breathe and perform at its full potential.
  • Deep Mount Compatibility: Supports subwoofers with up to 20 1/2" mounting depth, making it ideal for large, high-performance competition subs popular in the U.S. market.
  • Professional Trunk-Ready Finish: Wrapped in a rugged trunk liner carpet that blends seamlessly with most American vehicles while protecting against wear and tear.
  • Airtight Sealed Construction: Fully sealed using high-quality Titebond silicone and wood glue to eliminate air leaks and ensure maximum efficiency and sound clarity.
  • Dual Binding Post Connectivity: Equipped with 2 secure binding post terminals for clean, reliable, and easy wiring in any high-performance audio setup.

 

Specifications:

  • Cutout Diameter: 11 1/8"
  • Air Volume: 3.98 ft³
  • Tuning Frequency: 30 Hz
  • Port Type: 1 Slot Port
  • Port Dimensions: H-12 1/2” x W-3 1/2” x L-27 1/2”
  • Mounting Depth: 20 1/2"
  • Front Baffle Thickness: 1 3/8"
  • Height: 14 1/4”
  • Length: 37 1/4"
  • Depth: 22"
  • Material: 3/4" High-Quality MDF Wood
  • Finish: Durable Trunk Liner Carpet
  • Sealant: High-Quality Titebond Silicone
  • Adhesive: High-Quality Titebond Wood Glue
  • Terminals: 2 Binding Post Terminals
  • UPC:
  • Weight: 81
  • 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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