JBL S28 – Prosound Digital Video
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Thương hiệu: JBL
| |
Mã SP: S28
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Bảo hành: 12 tháng

Nguồn gốc xuất xứ: Mỹ/ Trung Quốc

Hotline hỗ trợ 24/7: 0972 682 830
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    TƯ VẤN KHÁCH HÀNG 0972.682.830
    (Miễn phí từ 8h30 - 21:00 mỗi ngày)

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).



·Aluminum front baffles for reduced cabinet

·JBL’s patented Differential Drive®

·Patented JBL S.A.F.E.TM Suspension System

·Crown VRack DSP and Amplification

·JBL HiQnet Performance ManagerTM System



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

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.

System Integration and Management

With the VTX Series you are not just using a product, you are gaining access to an expert system. Tools for system design and all the components to analyze, configure, set up and control a VTX system are all part of the JBL commitment to total system integration and support. The goal is maximum efficiency and the highest possible level of performance in any venue, anywhere in the world.

Training and 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.


System Type

High Performance Dual 18” Subwoofer

Frequency Range (-10 dB)

24 Hz - 400hz

System Input Power Rating

2 x 2000 W Continuous, 2x 8000 W Peak (AES/ 2hour)

Bandpass Sensitivity

102 dB, 1W / 1m (2.0 Vrms at 3.3 ft ) half-space conditions

Maximum Peak Output

144 dB SPL half-space conditions

Amplification & processing

Crown® I-TechHD or VRack power amplification

JBL HiQnet Performance Manager system control 

Low Frequency

2 x 2269H, 457 mm (18 in) dia., 100 mm (4 in) Dual Coil, neodymium Differential Drive®, Direct Cooled™


18 mm, 11-ply Finnish birch plywood; black DuraFlex™ finish; integral recessed handles


Fixed angle ASM suspension system with 0-10 degree inter-enclosure angles at 1 degree increments. Reverse-cardioid arrayable. with acoustically-transparent black cloth backing

Input Connectors

Neutrik® Speakon® NL-4 (2x) and NL-8 (2x) LF1: 1+/-, LF2: 2+/-

Dimensions (H x W x D)

495.3 mm x 1221.7 mm x 922.0 mm (19.5 in x 48.1 in x 36.3 in)

Net Weight

83.0 kg (183 lbs) 

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