VTX S28

Dual 18" Subwoofer - Suspendable

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Dual 18" Subwoofer - Suspendable

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 S28 can be suspended or ground-stacked and is cardioid-arrayable in either configuration for improved rear rejection. Compatible with VTX V25 suspension, S28 can be suspended at the top of V25 arrays to extend the effective low frequency line length, providing improved vertical pattern control combined with improved rear rejection when used in cardioid mode.

Alternatively, S28 arrays (cardioid or front-firing) can be suspended beside or behind V25 arrays. For theatrical sound design, S28 can be suspended in the middle of flown V25 arrays to facilitate balcony and floor coverage by allowing improved underbalcony penetration. Larger cardioid configurations are also effective where S28 is suspended or ground-stacked in multiple cardioid blocks, each block consisting of 3 enclosures (2 front-firing, 1 rear-firing).

 

Features

  • Aluminum front baffles for reduced cabinet
  • JBL’s patented Differential Drive®
  • Patented JBL S.A.F.E.™ Suspension System
  • Crown VRack DSP and Amplification
  • JBL HiQnet Performance Manager™ System
 

More Details

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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VTX S.A.F.E™ SUSPENSION & LASER SETUP
Next Generation Line Array System Solutions

JBL’s patented S.A.F.E suspension system is streamlined for speed and efficiency with improved hardware for faster setup with fewer pinning operations and greater security.

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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.

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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

  Version Language Size Uploaded
Specifications
S28 Spec Sheet
updated: Jun 20, 2019
    538 KB Jun 20, 2019
Brochures
VTX Series Brochure
updated: Oct 18, 2019
    6.48 MB Oct 18, 2019
CAD Drawings
V25 AF/EB 2D Drawings PDF
updated: Jul 02, 2019
    266 KB Jul 02, 2019
S28 3D DXF Drawings
updated: Jun 20, 2019
    3.36 MB Jun 20, 2019
G28 & S28 2D PDF Drawings
updated: Jun 20, 2019
    185 KB Jun 20, 2019
Bim Objects
BIM (Revit) Files
updated: Oct 03, 2019
    12.4 MB Oct 03, 2019
Compliances
VTX Series & Suspension Hardware Declaration of Conformity
updated: Jun 20, 2019
    158 KB Jun 20, 2019
VTX Series Declaration of Conformity
updated: Oct 18, 2019
    1.28 MB Oct 18, 2019
VerTec Series Declaration of Conformity
updated: Oct 18, 2019
    144 KB Oct 18, 2019
Software
Line Array Calculator III
version 3.4.0, updated: Jan 20, 2020
3.4.0     12.5 MB Jan 20, 2020
PerformanceManager
version 2.6.5.14, updated: Apr 06, 2020
2.6.5.14     103 MB Apr 06, 2020
User Guides
VTX Subwoofer Wiring Guide
version 1.1, updated: Dec 18, 2019
1.1    7.54 MB Dec 18, 2019
S28 Technical Manual
updated: Jun 20, 2019
    197 KB Jun 20, 2019
VTX Compression Suspension Kit and Accessories - User Guide
updated: Dec 03, 2019
    1.33 MB Dec 03, 2019
Ease Data
VTX V25-II/S28 Ease Files
updated: Oct 09, 2019
    29.8 MB Oct 09, 2019

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Specifications

System Type Full Size Suspendable, Cardioid-Arrayable, Dual 18" Subwoofer with Ultra Long Excursion Transducers
Components 2 x 2269H Differential Drive® 18"
Frequency Range (-10 dB) 24 - 400 Hz
Nominal Section Impedances 2 x 8 ohms
Continuous Power Rating 2 x 2000W
Dimensions (w x h x d) 1222 mm x 493.3 mm x 926.5 mm (48.1" x 19.4" x 36.5")
Weight 83.0 kg (183 lb)

Accessories

VTX V25 AF | Array Frame
VTX V25 AF Main photo
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Array Frame used for suspending or ground stacking VTX V25 series enclosures. The VTX-V25-AF is also compatible with the VTX S28 dual 18” subwoofer enclosures. Includes height-adjustable leveling feet for ground stack applications. Optional VTX-V25-AF-EB extension bar available.

Features:
  • Compatible with VTX V25, VTX V25-CS, VTX V25-II, VTX V25-II-CS and VTX S28
  • 9 pick points available for single point suspension
  • Optional Extension Bar available
  • Flexible front-to-back or side-by-side pick point options
  • Supports up to 24 cabinets (array geometry dependent)
  • Can be used for ground stack applications
  • Pick point shackle size: 5/8” or 3/4”
Included:
  • 1 x VTX-V25-AF
  • 4 x height-adjustable leveling feet for ground stack applications
  • 4 x Quick Release Pins (QRP) for securing top enclosure to the frame

Documentation
VTX V25 AF EB | Array Frame
VTX V25 AF EB Main photo
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Extension Bar accessory used in conjunction with the VTX-V25-AF array frame for deploying VTX V25 series systems in either compression or tension mode. Five extension bar attachment options provide variable pick point separation (2-point suspension) and added flexibility for single point suspension. The extension bar can be front- or rear-mounted for increased array up-tilt or down-tilt, respectively. When rear-mounted, provides an attachment point for compression suspension. A single extension bar can be installed in the array frame central tube, or alternatively, a pair of extension bars can be front or rear-mounted in left/right array frame tubes. Single or dual extension bars can also be front- or rear-mounted in ground stack applications for extra stability and a wider range of array tilt angle options. Dual extension bars can also be front-and rear-mounted for compression suspension when increased array up-tilt is required.
Features:
  • Compatible with VTX-V25-AF
  • 2 x pick points available for single point suspension
  • 1 x pick point available for VTX-V25-LH level hoist attachment
  • Supports up to 24 cabinets (array geometry dependent)
  • Pick point shackle size: 5/8” or 3/4”
Included:
  • 1 x VTX-V25-AF-EB extension bar
  • 1 x height-adjustable leveling foot for ground stack applications
  • 2 x Quick Release Pins (QRP) for securing the extension bar to the array frame

Documentation
VTX S28 VT CVR | Cover
VTX S28 VT CVR Main photo
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Reinforced, padded protective cover for 3x VTX V28 enclosures in either front-firing or cardioid mode when transported vertically.
Features:
  • Handle cutouts, heavy-duty zippers
  • Modular design, can be used with 3x VTX V28 in normal front-firing configuration or 3x VTX V28 in cardioid mode
  • Rear panel access flaps for input connectors
  • Speaker cabinets can be tested without fully removing the cover
  • Lightweight, durable construction
Included:
  • 1 x VTX-V28-VT-CVR

Documentation
VTX S28 VTC | Vertical Transporter
VTX S28 VTC Main photo
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The VTX-V28-VTC vertical transporter is a simple and cost-effective solution for vertically transporting VTX V28 enclosures in blocks of 3x cabinets high. When transported in blocks of 3x S28, cabinets can be configured in either front-firing or cardioid mode. Measuring 48” wide by 37” deep, the VTX-S28-VTC will travel 2 across (width-wise) in standard 100” trucks. Reinforced protective covers (VTX-S28-VT-CVR) supplied separately.
Features:
  • Vertical transporter for S28 enclosures (front-firing or cardioid mode)
  • Heavy duty locking casters
  • Stackable for easy storage
  • Dimensioned for efficient truck pack
  • Lightweight, rugged construction
Included:
  • 1 x VTX-V28-VTC

Documentation
VTX S28 ACC | Accessory Cover and Castorboard
VTX S28 ACC Main photo
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VTX Series S28 Accessory Kit for transportation and protection of one VTX S28 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 mechanisms for secure attachment to the S28 enclosure. Beveled recesses auto-locate with S28 caster board mount tabs. The rotating cam mechanism can be released while S28 cabinets are face down during the suspension process (no need to manually remove caster board).
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 S28 enclosures
Included:
  • 1 x VTX S28 caster-board

Documentation

Support/FAQs