JBL Dual 18" 4000W Suspension Cardioid Subwoofer for Professional Ultra-Deep Bass Performance, Model VTX S28

Subwoofer amplifier Dual 18-inch, 4000-watt, suspended Cardioid speakers for professional-grade, ultra-deep bass performance - Model VTX S28

• The JBL VTX S28 subwoofer is one of the most powerful professional subwoofers developed by JBL in the VTX series, combining massive power and precise audio control with a smart design that can be hung and floor-mounted.
• Subwoofer amplifier comes Equipped with two 18-inch 2269H Differential Drive® units that utilize dual neodymium magnets and two acoustic coils to achieve stunning bass performance up to 29 Hz with maximum clarity.
• The VTX S28 allows for multiple playback configurations, either Omnidirectional for comprehensive coverage, or Cardioid to reduce background noise and improve sound directionality.
• A subwoofer can be suspended in VTX V25 Line Array systems to extend the low-frequency range, or used separately to generate deep bass at festivals and major events.

Technical description:

• The subwoofer speaker was designed The VTX S28 offers incredible flexibility in use, whether in air suspension or ground stacking.
• The 2269H speakers utilize advanced Ultra Long Excursion Differential Drive® technology to deliver powerful sound pressure without distortion, even at extreme operating levels.
• The speaker integrates with the BSS® OmniDriveHD V5 DSP Processing system via Crown Audio I-Tech HD or VRack amplifiers, with full control via JBL HiQnet Performance Manager™ software for high-precision frequency response and signal processing.
• Its robust design, crafted from Finnish birch wood with a black DuraFlex™ coating, also makes it ideal for intensive use in field and professional environments.

Technical specifications:

• Type: 18-inch dual subwoofer, suspended and supports cardioid array.
• Electrical power: 4000 watts (2000 x 2)
• Frequency range (-10 dB): 29 Hz – 90 Hz
• Coverage patterns: Omnidirectional or Cardioid
• Maximum sound pressure (SPL): 139 dB (Preset: VTX S28-80)
• Processing and amplification:
• Crown Audio I-Tech HD / VRack Amplifiers
• BSS OmniDriveHD V5 DSP Digital Processing
• Nominal impedance: 2 x 8 ohms
• LF amplifiers:
• (2) JBL 2269H – 18-inch – Dual Neodymium Magnets – Dual Voice Coils – Differential Drive® Technology
• Material:
• High-density Finnish birch wood
• DuraFlex™ black coating is shock and scratch resistant
• Handles: 10 built-in handles for easy transport and hanging
• Unit connection angles: 0° to 10°
• Dimensions (height x width x depth):
• 493 × 1222 × 926 mm
• (19.4 × 48.1 × 36.5 inches)
• Net weight: 83 kg (183 lbs)

Key features:

• Two 18-inch speakers with Differential Drive® technology to generate massive sound power and deep bass response.
• Configurable Cardioid design to reduce bass leakage and improve acoustic routing.
• It can be hung or floor-stalled with high flexibility to meet various acoustic applications.
• Compatible with the VTX V25 system and can be mounted on top of or in the middle of the array for balanced audio coverage.
• The Direct Cooled™ cooling system ensures consistent performance even during prolonged operation.
• The durable DuraFlex™ coating protects the speaker from environmental factors during outdoor use.
• Full integration with Crown HD amplifiers and BSS DSP processing via HiQnet Performance Manager™ software.

Product summary:

• The JBL VTX S28 subwoofer comes as an ideal choice for large shows that require deep, consistent bass with precise geometric control of acoustic direction and propagation.
• It combines superior power (4000 watts) with high installation flexibility to provide consistent performance whether at outdoor parties, large halls, or theaters.
• This headset gives you the ability to achieve homogeneous and precisely directed sound thanks to Cardioid Arraying, with the ability to create massive multi-unit systems to increase sound density without loss of quality.

Additional features:

• Can be mounted in the middle or top of V25 systems to extend the vertical bass range.
• It supports cardioid or front-firing distribution to adapt the sound to the location.
• Perfect bass distribution to cover theaters or stadiums without interference or background noise.
• It works in perfect harmony with the Crown VRack and BSS DSP systems for complete professional control.
• Robust engineering design that withstands intensive use and frequent transport.

Applications used for the product:

• Live performances and huge music festivals.
• Professional theaters and large concert halls.
• Sports stadiums and outdoor events.
• Trade events and major exhibitions.
• Fixed installations and integrated audio systems.

Summary and final advice:

• If you are looking for a subwoofer amplifier Dual 18-inch professional 4000-watt speakers combine deep bass, power, and precise sound routing, making the JBL VTX S28 the perfect choice.
• Thanks to Differential Drive® and Cardioid Arraying technologies, the subwoofer delivers an amazing bass experience even in the biggest theaters and festivals.
• It is designed to meet the needs of professionals seeking unparalleled performance at every low frequency, operational stability, and ease of installation — it is, in short, the epitome of power and precision in the professional subwoofer world.