18-inch dual subwoofer speaker, 4000 watts, professional design, VTX B28 cardioid architecture, low-frequency coverage up to 25 Hz, JBL brand

Subwoofer headphones Dual 18-inch, 4000W professional JBL VTX B28 cardioid design with low-frequency coverage up to 25Hz

• The JBL VTX B28 subwoofer represents the latest generation of professional subwoofer units designed by JBL to complement its integrated VTX systems for superior audio performance.
• This unit was developed to deliver a powerful, clear, and balanced bass sound even in the most demanding environments such as mega festivals and world-class live shows.
• The subwoofer speaker relies on two 18-inch JBL 2288H-M Differential Drive® units with double-flared air vents to reduce noise and improve bass response up to 25Hz.
• It is characterized by its ability to operate in both Omnidirectional and Cardioid modes, giving the user precise control over the direction of sound.
• Whether suspended or stacked on the ground, the VTX B28 offers high flexibility thanks to its 2-Point Rigging System, which allows up to 16 units to be suspended easily and safely.

Technical description:

• The subwoofer speaker was designed The VTX B28 is designed to deliver maximum performance in terms of audio clarity and dynamics, and is equipped with the latest JBL Differential Drive® technology, which uses two voice coils and dual neodymium magnets to dissipate heat and reduce distortion.
• This system integrates seamlessly with Crown I-Tech HD amplifiers and operates within the JBL HiQnet system for complete control and processing via Performance Manager™ software.
• The frame is made from high-density Finnish birch wood and coated with a scratch- and impact-resistant DuraFlex™ layer, making it ideal for use on tours and at harsh outdoor events.

Technical specifications:

• Type: 18-inch Double Subwoofer – Hangable or Floor Stackable
• Electrical power: 4000 watts (2000 x 2)
• Frequency range (-10 dB): 25 Hz – 80 Hz
• Coverage pattern: Omnidirectional or Cardioid
• Maximum sound pressure (SPL): 141 dB (Preset: VTX B28 80)
• Processing and Amplification: Crown I-Tech HD Amplifiers
• Nominal impedance: 4 ohms
• LF amplifiers:
• (2) JBL 2288H-M – 18-inch size – Differential Drive® technology – Dual neodymium magnets
• Material: Finnish birch wood coated with black DuraFlex™
• Suspension system:
• Two-point spring-loaded rigging system
• Equipped with a two-step safety locking mechanism
• Handles: 4 built-in carrying handles
• Connections: Front and rear NL4 inputs and outputs
• Dimensions (height x width x depth):
• 508 × 1324 × 750 mm
• (20 x 52.1 x 29.5 inches)
• Net weight: 87 kg (191.8 lbs)

Key features:

• Amazing bass performance that extends up to 25 Hz for deep, clear sound.
• Two 18-inch high-efficiency Differential Drive® units to generate powerful sound pressure.
• Configurable Cardioid design to reduce background interference and improve voice guidance.
• A quick and secure suspension system for mounting up to 16 units in a single array.
• Double-flared air outlets to reduce aerodynamic noise and improve performance.
• Full integration with Crown I-Tech HD amplifiers and processing via HiQnet Performance Manager™.
• FEA Optimized structure to reduce resonance and ensure even energy distribution within the box.
• Aesthetically pleasing design that is consistent with the JBL VTX A-Series for visual and practical integration in large systems.

Product summary:

• The JBL VTX B28 subwoofer represents the next generation of deep bass amplifiers designed to meet the needs of audio professionals.
• With a power output of up to 4000 watts and the ability to operate in both Omni and Cardioid modes, the speaker delivers a powerful and controlled bass performance suitable for both large-scale performances and fixed installations.
• It features a smart design that makes it easy to install and hang, making it ideal for rental companies, theaters, festivals, and large events that require stable, precisely directed low-frequency sound.

Additional features:

• Audio compatible with all JBL VTX products.
• Designed for multiple Cardioid configurations for optimal audio control in any environment.
• The ability to suspend them above or behind Line Array arrays to increase the range of low frequencies.
• Easy to assemble and disassemble thanks to the quick spring locking mechanism.
• High durability makes it ideal for long-range audio trips and tours.

Applications used for the product:

• Major music festivals and outdoor performances.
• Professional theaters and huge concert halls.
• Stadiums and sports fields.
• Fixed sound systems in shopping malls and exhibitions.
• Rental companies and mobile events.

Summary and final advice:

• If you are looking for an 18-inch dual 4000-watt subwoofer speaker that delivers professional performance in deep low frequencies with precise routing and easy installation, the JBL VTX B28 subwoofer speaker is the perfect choice for you.
• Thanks to its robust design and advanced Differential Drive® technologies, it delivers clean, powerful bass that is suitable for all professional audio applications.