VTX G28
Discontinued

Ground Stack-Only, Dual 18-inch Subwoofer

VTX G28
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Dual 18" Subwoofer - Ground Stackable

VTX series dual 18" subwoofers employ two 2269H 18" transducers featuring Differential Drive technology with two voice coils, two neodymium magnets and extremely high peak-to peak excursion capabilities to deliver extended very low frequency performance.

The VTX G28 is ground stackable only with a practical form factor for convenient stacking and additional enclosure volume plus port tuning that delivers true sub performance down to 22 Hz @ -10 dB.

Features

  • JBL’s patented Differential Drive® technology
  • Crown VRack DSP and Amplification
  • JBL HiQnet Performance Manager™ System

Technology

DIFFERENTIAL DRIVE® TECHNOLOGY
Enhanced Performance and Dramatically Reduced Driver Weight

JBL's exclusive dual voice coil, dual magnetic gap Differential Drive technology is at the core of all VTX models, dramatically reducing driver weight while greatly enhancing all critical performance parameters: frequency response, power output and distortion.

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System Integration

System Integration & Management

JBL's exclusive dual voice coil, dual magnetic gap Differential Drive technology is at the core of all VTX models, dramatically reducing driver weight while greatly enhancing all critical performance parameters: frequency response, power output and distortion.

LEARN MORE
 

Training & Support

Training & Support

In addition to designing the most sophisticated sound reinforcement system available, JBL Professional provides the expertise to achieve the maximum performance possible. Our 65+ years of expertise in the use of systems in venues around the world is an invaluable resource that is at the core of our training curriculum, helping you to maximize both the use and your investment in the VTX System.

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Downloads

Specifications
  Size Uploaded
file type icon VTX G28 Spec Sheet
updated: Dec 2020
425 KB Dec 2020
Manuals
  Version Language Size Uploaded
file type icon VTX Subwoofer Wiring Guide
en version 1.1, updated: Oct 2023
1.1  en  7.54 MB Oct 2023
Brochures
  Size Uploaded
file type icon VTX V25 System Brochure
updated: Dec 2020
6.48 MB Dec 2020
CAD Drawings
  Size Uploaded
file type icon VTX G28/S28 2D Drawings
updated: Dec 2020
185 KB Dec 2020
file type icon VTX G28 3D Drawings
updated: Dec 2020
2.12 MB Dec 2020
Compliances
  Size Uploaded
158 KB Dec 2020
Software
  Version Size Uploaded
Windows download icon PerformanceManager
version 3.2.0, updated: Sep 2025
3.2.0   134 MB Sep 2025
Windows download icon Line Array Calculator III
version 3.9.1, released: Sep 2025
3.9.1   24.2 MB Sep 2025
Service Notes
  Version Language Size Uploaded
file type icon VTX G28 Spare Parts
en version A, updated: Apr 2026
en  63.1 KB Apr 2026

If any of the links above result in strange characters in your browser, please right-click the file to save it to your computer.

Parts & Service

Specifications

System Type Ground Stack-Only, Cardioid-Arrayable, Dual 18-inch Subwoofer
Frequency Range (-10dB) 22 Hz - 80 Hz (Preset: VTX G28)
Coverage Omnidirectional or Cardioid
Maximum SPL (1m) 140 dB (Preset: VTX G28 80)
System Amplification Crown Audio I-Tech HD
System Impedance 2x 8 ohms
LF Driver (2) JBL 2269H 18-inch Neodymium Differential Drive® woofer
Enclosure Finnish birch plywood, Black DuraFlexTM finish, ten integral recessed handles
Dimensions (H x W x D) 493 mm x 1211 mm x 1211 mm
19.4 in x 47.7 in x 47.7 in
Net Weight (each) 92.5 kg (204 lb)

Accessories

VTX G28 ACC | Accessory Cover and Casterboard
VTX G28 ACC Main photo
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VTX G28 ACC detail thumbnail #1 VTX G28 ACC detail thumbnail #2 VTX G28 ACC detail thumbnail #3 VTX G28 ACC detail thumbnail #4
VTX Series S28 Accessory Kit for transportation and protection of one VTX G28 enclosure. Includes: padded, reinforced protective cover with handle cutouts and rear panel access flap; dolly caster-board with rugged tour grade casters and rotating cam mechanism for secure attachment to G28 enclosure.

 

Features:
  • Includes padded protective cover and caster-board
  • Handle cutouts and rear panel access flap
  • Speaker cabinets can be tested without fully removing the cover
  • Tour grade casters
  • Stackable for convenient storage
  • Rotating release/lock cam mechanisms for secure attachment to G28 enclosures
Included:
  • 1 x VTX G28 caster-board
  • 1 x padded protective cover

Documentation

News

HARMAN Pro Insights

Jimmy Buffett Hits Road with JBL VTX A12 Line Arrays feature

Jimmy Buffett Hits Road with JBL VTX A12 Line Arrays

Despite the laid-back, beach-bumming aesthetic of his music, Jimmy Buffett is one of the most active entertainers in show business. Since cementing his stardom with the 1977 mega-hit “Margaritaville,” the barefoot soft-rocker has released dozens of albums, toured around the world several times and built

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Support/FAQs

HARMAN Professional Solutions: