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Ground Shaker  GS-30HZ112B New

Black 12" Single Ported Competition 30-Hz Sub Box

Item #99315

Condition:   Brand New

Product Highlights

  • Black
  • 12"
  • Single 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.

$275.00

Reg. Price $305.00  Save $30.00
  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 GS-30HZ112B Black 12" Single 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 Single Ported Competition 30-Hz Sub Box
  • • Owner's Manual
Ground Shaker
Competition-Tuned Deep Bass Built to Shake the Road

Engineered for extreme low-frequency performance, this enclosure delivers massive, room-filling bass that hits deep and stays controlled even at high output. Every unit is precision-tested for accuracy, ensuring consistent, competition-level sound quality you can trust. Its extended airflow design pushes powerful, clean bass with reduced distortion, giving you hard-hitting performance built for serious car audio enthusiasts who demand maximum impact.

Competition-Grade Strength and Stability

Engineered for serious bass performance, this enclosure is crafted from heavy-duty 3/4” MDF to deliver rock-solid durability and minimize unwanted vibration under extreme output. Its reinforced 1 3/8” front baffle provides exceptional mounting strength, keeping your subwoofer locked in place for clean, powerful, and controlled bass even under the most demanding high-power setups.

 

Ground Shaker
Ground Shaker
Heavyweight Stability with Pro-Level Bass Precision

Designed with a rugged trunk-lined finish, this enclosure delivers a clean, factory-inspired look that fits seamlessly into trucks and cars alike. Its high-mass construction adds serious stability, reducing unwanted movement for tighter, more accurate bass even at high volume. Paired with a secure binding post connection, it ensures solid, reliable wiring performance that stands up to demanding high-power audio systems.


SPECIFICATIONS


  • Speaker Size : 12 Inches
  • Number Of Subwoofers : 1
  • Construction : 3/4 MDF
  • Volume : 2.70 Cu. Ft.
  • Enclosure Type : Ported

FEATURES


Features:

  • Extreme Deep Bass Engineering: Built with a massive 2.70 ft³ air volume and 30 Hz tuning for earth-shaking low-end output designed for serious American car audio systems.
  • Verified Precision Tuning: Professionally tested and tuning-verified using SMD IM-SG+ equipment for accurate, competition-grade bass performance.
  • Ultra-Long Slot Port Design: The 34” precision slot port delivers powerful air movement, deeper bass extension, and reduced distortion at high output levels.
  • Heavy-Duty Competition Build: Constructed from 3/4” premium MDF wood to withstand extreme pressure and eliminate unwanted cabinet vibration.
  • Reinforced Front Baffle Strength: Features a thick 1 3/8” front baffle for maximum durability and stable subwoofer mounting under high power.
  • Pro-Grade Trunk Finish: Wrapped in durable trunk liner carpet for a clean, rugged, and factory-style appearance suited for trucks and cars.
  • High-Mass Stability Design: Weighing 81 lbs, this enclosure is built for stability, reducing movement and improving bass accuracy during heavy playback.
  • Secure Binding Post Connection: Equipped with a binding post terminal for strong, reliable wiring connections ideal for high-power audio setups.

 

Specifications:

  • Cutout Diameter: 11 1/8"
  • Air Volume: 2.70 ft³
  • Tuning Frequency: 30 Hz (Tuning Verified with SMD IM-SG+)
  • Port Design: 1 Slot Port (H-12.5”, W-2.75”, L-34”)
  • Mounting Depth: 20 1/2"
  • Front Baffle Thickness: 1 3/8"
  • Height: 14 1/4"
  • Length: 25 1/4"
  • Depth: 22"
  • 3/4" 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
  • 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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