Introducing the VTX B35 and VTX B35G 15-inch Cardioid Subwoofers

The JBL VTX B35 is engineered for professionals who need controlled low-frequency performance in spaces where conventional cardioid subwoofer arrays are difficult to deploy. Purpose-built for the VTX Series, B35 brings fixed cardioid behavior into a compact, single-enclosure design, giving system designers a practical solution to reduce rearward energy, improve stage conditions, and keep low-frequency coverage focused toward the audience.

At the core of the system are three JBL Differential Drive 15-inch woofers arranged in a front-rear configuration. Two forward-facing drivers and one rear-facing driver are powered independently using dedicated Crown I-Tech HD amplifier channels and optimized JBL presets. This integrated architecture produces predictable cardioid directivity without requiring additional rear-facing cabinets, complex spacing calculations, or field-built subwoofer arrays. The result is a low-frequency solution that is easier to specify, faster to deploy, and better suited to applications where available space, rigging capacity, or architectural constraints limit traditional cardioid approaches.

B35 is designed to work naturally within VTX Series while giving users more ways to solve low-frequency deployment challenges. The flyable B35 is mechanically compatible with VTX A12, enabling clean mixed arrays with A12 suspended below B35 without adapter frames. It is also compatible with A12 rigging accessories including the A12 Array Frame MKII and Suspension Bar, supporting flown, standalone, and hybrid configurations across touring and installed applications. For ground-stacked only systems, or fixed installations, the B35G retains the same acoustic design, amplifier presets, and performance characteristics in a streamlined enclosure without touring flyware.

With extension down to 32 Hz, a high output-to-size ratio, optimised presets, simple NL4 wiring, and integration with Venue Synthesis, Array Link, and Performance Manager, the B35 adds a focused, flexible low-frequency control to the VTX ecosystem. From major festival stages and arena deployments to under-stage placement and fixed installations with limited depth or sightline restrictions, B35 helps deliver the right amount of bass in the right direction, with less energy where it is not needed.

Common Applications

B35 Series is suited for touring productions, festivals, arenas, performance venues, houses of worship, and fixed installations that require directional low-frequency control in a compact footprint. It is especially useful where stage wash, backstage noise, trim height, under-stage height, or architectural constraints make conventional cardioid subwoofer arrays impractical. 

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PRESS RELEASE | June 16, 2026

JBL Professional Expands VTX Series with Debut of B35 Cardioid Subwoofers

Compact Single-Enclosure Design Brings Directional Low-Frequency Control to Touring and Installed VTX Systems

INFOCOMM 2026 (Booth #8124) – LAS VEGAS — HARMAN Professional Solutions, the global leader in audio, video, control, and lighting systems, today announced the expansion of the JBL Professional VTX Series with the introduction of the VTX B35 and VTX B35G compact cardioid subwoofers. Designed to deliver controlled low-frequency coverage in applications where traditional cardioid subwoofer arrays are difficult to deploy, the new subwoofers combine low-frequency control with a compact, deployment-friendly form factor. Mechanically compatible with VTX A12, the VTX B35 enables clean mixed-array configurations while expanding the VTX Series ecosystem with flexible low-frequency solutions for touring and fixed installation applications.

“B35 gives system designers and rental providers a more practical way to achieve low-frequency control in environments where conventional cardioid arrays are difficult to deploy,” said George Georgallis, Director of Product Management, Performance Audio at HARMAN Professional Solutions. “Additionally, the ability to fly B35 directly above VTX A12 arrays provides new deployment flexibility for A12 systems, particularly in applications where space for ground-stacked subwoofers is limited or unavailable.”

VTX B35 integrates cardioid behavior into a single-enclosure design that reduces rearward energy while keeping low-frequency coverage focused on the audience. By eliminating the need for additional rear-facing cabinets, complex array spacing, or field-built subwoofer configurations, the B35 simplifies deployment and provides a practical solution for productions and installations where space, trim height, rigging capacity, or architectural constraints limit traditional cardioid subwoofer approaches.

At the core of the system are three JBL Differential Drive 15-inch woofers arranged in a front-rear configuration, with two forward-facing drivers and one rear-facing driver. Each section is powered independently via dedicated amplifier channels and optimized presets, resulting in predictable cardioid directivity. With extension down to 32 Hz and a high output-to-size ratio, the VTX B35 delivers powerful low-frequency performance while maintaining a compact footprint suited for touring productions, festivals, arenas, houses of worship, performance venues, and fixed installations.

The VTX B35 is mechanically compatible with VTX A12 line arrays, enabling clean mixed-array configurations with A12 suspended directly below B35 without requiring adapter frames. The B35 also integrates with the VTX A12 rigging accessories, including the new A12 Array Frame and current A12 Suspension Bar, supporting flown, standalone, and hybrid deployment configurations across touring and installed applications. The B35G provides the same acoustic design and performance, but omits touring-style rigging, making it well-suited for ground-stacked-only applications or fixed installations.

The VTX B35 Series integrates with the complete JBL software ecosystem, including Venue Synthesis, Array Link, and Performance Manager, enabling system designers to streamline prediction, deployment, optimization, and system control workflows within a single ecosystem. Integrated subwoofer array tools, including the Electronic Delay Steering (EDS) calculator, enable rapid optimization of large, distributed subwoofer arrays.

FEATURE HIGHLIGHTS:

• INTEGRATED CARDIOID CONTROL
  The VTX B35 uses a fixed cardioid architecture with three JBL Differential Drive 15-inch woofers arranged in a front-rear configuration. Two forward-facing drivers and one rear-facing driver are powered independently using dedicated Crown I-Tech HD amplifier channels. Optimized presets create predictable rear rejection and forward-focused low-frequency energy without requiring additional subwoofer cabinets or complex deployment techniques.
• PRACTICAL SOLUTION FOR CONSTRAINED DEPLOYMENTS
  VTX B35 delivers built-in cardioid performance in a compact, purpose-designed enclosure, making it well-suited for productions and installations where stage space, trim height, under-stage height, rigging capacity, transport space, or architectural sightlines limit traditional multi-cabinet cardioid array configurations.
• DESIGNED FOR VTX SYSTEMS
  The flyable VTX B35 integrates mechanically with VTX A12 line arrays and existing VTX rigging accessories, supporting mixed-array, flown, and hybrid deployments. Compatibility with all VTX Series base plates also enables ground-stacked configurations alongside VTX A-Series line array products. Acoustically, B35 works seamlessly with all VTX full-range systems and other VTX B-Series subwoofers, allowing multiple subwoofer types and configurations to be combined within a single system.
• TWO MODELS, ONE ACOUSTIC PLATFORM
  The VTX B35 includes full touring-style rigging for maximum deployment flexibility and system integration, while the B35G includes 16× M10 Quick Link™ eyebolts for fixed installations and ground-stacked applications. Both models share the same acoustic design, amplifier presets, performance characteristics, and simple NL4 wiring, providing flexibility across all applications.
• SOFTWARE-INTEGRATED WORKFLOW
  VTX B35 integrates with the full JBL software ecosystem, including Venue Synthesis, Array Link, and Performance Manager, streamlining system prediction, mechanical validation, deployment planning, tuning, monitoring, and control workflows across JBL VTX Series systems.
• PROFESSIONAL BUILD QUALITY
  Constructed from outdoor-grade Baltic birch plywood and finished with JBL’s proprietary, impact-resistant DuraFlex coating, the B35 is engineered for the most demanding touring and installation environments. Stainless-steel grilles, corrosion-resistant hardware, and an IP55 rating ensure long-term reliability indoors and outdoors. All models are backed by JBL Professional’s 5-year warranty.