VTX B35

Triple 15-inch Flyable Cardioid Subwoofer

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, optimized 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.

  • INTEGRATED CARDIOID CONTROL

    B35 uses a fixed cardioid architecture with three JBL Differential Drive 15-inch woofers arranged as two forward-facing drivers and one rear-facing driver. Each section is powered independently using dedicated amplifier channels and optimized presets, creating predictable rear rejection and forward-focused low-frequency energy without requiring additional subwoofer cabinets, external array spacing, or complex deployment techniques.

  • A PRACTICAL SOLUTION FOR CONSTRAINED DEPLOYMENTS

    The primary value of B35 is not simply that it can be used cardioid; it is that cardioid behavior is built into a compact, purpose-designed enclosure. This makes B35 a strong fit for productions and installations where low-frequency control is needed but space, trim height, rigging capacity, truck pack, under-stage height, or architectural sightlines limit what can be achieved with conventional multi-cabinet cardioid arrays.

  • DESIGNED FOR VTX SYSTEMS

    B35 is mechanically compatible with VTX A12, enabling mixed arrays with A12 suspended directly below B35 without adapter frames. It supports A12 rigging accessories, including the A12 Array Frame (MKII) and Suspension Bar, for a unified deployment workflow across VTX systems. Compatible with all VTX Series base plates and acoustically aligned with all VTX full-range systems and B-Series subwoofers, B35 integrates easily into flown or ground-stacked configurations.

  • DUE MODELLI, UNA PIATTAFORMA ACUSTICA

    Il B35 standard include i rigging completi per il touring per massima flessibilità e integrazione di sistema. Il B35G omette l'hardware di volo integrato per il touring ma include 16× M10 eyebolt QuickLink per installazione fissa, supportando anche configurazioni stack a terra. Entrambi i modelli condividono lo stesso design acustico, i preset dell'amplificatore, le caratteristiche di performance e il semplice cablaggio NL4, garantendo flessibilità in tutte le applicazioni.

  • SOFTWARE-INTEGRATED WORKFLOW

    B35 integrates with the full JBL software ecosystem, including Venue Synthesis, Array Link, and Performance Manager. Venue Synthesis supports system design, acoustic prediction, optimization, and mechanical safety checks, while integrated subwoofer array tools and the EDS calculator simplify large array deployment. Array Link delivers rigging and configuration data to mobile devices, and Performance Manager provides unified system configuration, tuning, monitoring, and control across all VTX systems.

  • PROFESSIONAL BUILD QUALITY

    B35 is constructed from outdoor-grade Baltic birch plywood and finished with JBL’s proprietary, impact-resistant black DuraFlex coating. A stainless-steel grille, IP55 rating, and corrosion-resistant suspension hardware ensure long-term reliability in demanding environments. The enclosure, rigging, and transducers are engineered for the most demanding touring and installation applications and are backed by JBL Professional’s 5-year warranty.

INTEGRATED CARDIOID CONTROL

B35 uses a fixed cardioid architecture with three JBL Differential Drive 15-inch woofers arranged as two forward-facing drivers and one rear-facing driver. Each section is powered independently using dedicated amplifier channels and optimized presets, creating predictable rear rejection and forward-focused low-frequency energy without requiring additional subwoofer cabinets, external array spacing, or complex deployment techniques.

A PRACTICAL SOLUTION FOR CONSTRAINED DEPLOYMENTS

The primary value of B35 is not simply that it can be used cardioid; it is that cardioid behavior is built into a compact, purpose-designed enclosure. This makes B35 a strong fit for productions and installations where low-frequency control is needed but space, trim height, rigging capacity, truck pack, under-stage height, or architectural sightlines limit what can be achieved with conventional multi-cabinet cardioid arrays.

DESIGNED FOR VTX SYSTEMS

B35 is mechanically compatible with VTX A12, enabling mixed arrays with A12 suspended directly below B35 without adapter frames. It supports A12 rigging accessories, including the A12 Array Frame (MKII) and Suspension Bar, for a unified deployment workflow across VTX systems. Compatible with all VTX Series base plates and acoustically aligned with all VTX full-range systems and B-Series subwoofers, B35 integrates easily into flown or ground-stacked configurations.

DUE MODELLI, UNA PIATTAFORMA ACUSTICA

Il B35 standard include i rigging completi per il touring per massima flessibilità e integrazione di sistema. Il B35G omette l'hardware di volo integrato per il touring ma include 16× M10 eyebolt QuickLink per installazione fissa, supportando anche configurazioni stack a terra. Entrambi i modelli condividono lo stesso design acustico, i preset dell'amplificatore, le caratteristiche di performance e il semplice cablaggio NL4, garantendo flessibilità in tutte le applicazioni.

SOFTWARE-INTEGRATED WORKFLOW

B35 integrates with the full JBL software ecosystem, including Venue Synthesis, Array Link, and Performance Manager. Venue Synthesis supports system design, acoustic prediction, optimization, and mechanical safety checks, while integrated subwoofer array tools and the EDS calculator simplify large array deployment. Array Link delivers rigging and configuration data to mobile devices, and Performance Manager provides unified system configuration, tuning, monitoring, and control across all VTX systems.

PROFESSIONAL BUILD QUALITY

B35 is constructed from outdoor-grade Baltic birch plywood and finished with JBL’s proprietary, impact-resistant black DuraFlex coating. A stainless-steel grille, IP55 rating, and corrosion-resistant suspension hardware ensure long-term reliability in demanding environments. The enclosure, rigging, and transducers are engineered for the most demanding touring and installation applications and are backed by JBL Professional’s 5-year warranty.

Ulteriori dettagli

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.

Download

Specifications
  Versione Lingua Dimensione Caricato
file type icon VTX B35 Spec Sheet
en versione A, aggiornato: giu 2026
en  706 KB giu 2026
CAD Drawings
  Versione Dimensione Caricato
file type icon VTX B35 Customer Drawings
versione A, aggiornato: giu 2026
1,61 MB giu 2026
file type icon VTX A12/B35 Revit/BIM Files
versione 3.0, aggiornato: ago 2026
3.0  52,3 MB ago 2026
file type icon VTX A12/B35 SketchUp File
versione 3.0, aggiornato: ago 2026
3.0  5,09 MB ago 2026
Software
  Dimensione Caricato
download icon for Venue Synthesis Venue Synthesis
rilasciato: lug 2026
lug 2026
download icon for ArrayLink ArrayLink
rilasciato: gen 2025
gen 2025
download icon for Performance Manager 3 Performance Manager 3
rilasciato: lug 2024
lug 2024
Simulation Data
  Versione Lingua Dimensione Caricato
file type icon VTX A12/B35 EASE GLL
en versione 2.0, aggiornato: lug 2026
2.0  en  12,2 MB lug 2026
Preset Libraries
  Versione Lingua Dimensione Caricato
file type icon VTX B35 Preset Library
en versione 1.1.0, aggiornato: ago 2026
1.1.0  en  792 KB ago 2026
Service Notes
  Versione Lingua Dimensione Caricato
file type icon VTX B35 Spare Parts
en versione A, aggiornato: giu 2026
en  98,7 KB giu 2026

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Parti e assistenza

Specifiche

Frequency Range (-10dB) 32 Hz - 87 Hz (Preset: 80 Hz)
Coverage Pattern Cardioid
Maximum SPL (1m) 139 dB (Preset: 80 Hz)
System Processing Crown iTech 12000HD
Crown iTech 4x3500HD
Nominal Impedance Front: 4 ohms
Rear: 8 ohms
LF Driver (3) JBL 2285H, 15 in diameter, dual 4 in diameter voice coil, neodymium Differential Drive®
Enclosure Exterior-grade birch plywood enclosure, DuraFlex™ finish, and four integral recessed handles
Dimensions (H x W x D) 496 mm x 1091 mm x 876 mm
19.5 in x 42.9 in x 34.5 in
Net Weight 91 kg (201 lb)

Accessori

VTX A12 AF MKII | Array Frame for VTX A12 and VTX B35
VTX A12 AF MKII Main photo
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Highlights:

  • Compatible with VTX A12 and VTX B35
  • One Extension Bar included
  • Integrated storage for up to two Extension Bars
  • Supports single-point, dual-point, and quad-point suspension
  • High-resolution single-point shackle positioning
  • Laser attachment bracket included

Included:

  • (1) VTX A12 AF MKII
  • (1) VTX A12 AF EB MKII
  • (3) 5/8-inch Shackles
  • (1) Laser Bracket

Documentazione
VTX A12 AF EB MKII | Extension Bar for VTX A12 Array Frame
VTX A12 AF EB MKII Main photo
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Highlights:

  • Extension Bar for use with the A12 Array Frame
  • Lightweight design
  • Includes brackets and hardware for side-by-side suspension
  • Compatible with the original VTX A12 AF

Included:

  • (1) VTX A12 AF EB MKII
  • (4) Attachment Bracket Sets and Hardware
  • (3) 5/8-inch Shackles

Documentazione
VTX A12 SB | Suspension Bar for VTX A12 and VTX B35
VTX A12 SB Main photo
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Highlights:
  • Compatible with VTX A12 and VTX B35
  • Attaches to the top or bottom enclosure of an array
  • Supports pull-back applications
  • Can be used as a compact array frame for VTX A12
  • Supports standalone suspension of VTX B35 arrays
  • Lightweight design
Included:
  • (1) Suspension Bar
  • (1) 5/8 in Shackle

Documentazione
VTX A12 AF CASE | Road Case for VTX A12 Array Frame MKII
VTX A12 AF CASE Main photo
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Highlights:

  • Road case for VTX A12 and VTX B35 rigging accessories
  • Optimized for truck packing alongside VTX A12 VT and VTX B35 VT transporters
  • Dedicated storage for Array Frames, Extension Bars, Suspension Bars, and Delta Plates
  • Side-access design for fast access to individual components
  • Black JBL DuraFlex™ finish
  • Heavy-duty tour-grade casters

Capacity: 

  • (2) VTX A12 AF MKII
  • (4) VTX A12 AF EB MKII
  • (4) VTX A12 AB
  • (2) VTX DELTA
  • Includes space for auxiliary rigging accessories such as shackles, chains, and wire ropes

Included:

  • JBL-P3644MX (empty):
    • (1) VTX A12 AF CASE
  • JBL-P3647MX (complete):
    • (1) VTX A12 AF CASE
    • (1) VTX A12 AF CASE
    • (2) VTX A12 AF MKII
    • (2) VTX A12 AF EB MKII
    • (2) VTX A12 SB
    • (2) VTX DELTA
    • (12) 5/8-inch Shackles

Notes: 

  • Not compatible with the original VTX A12 Array Frame

Documentazione
VTX B35 VT | Vertical Transporter for B35 and B35G
VTX B35 VT Main photo
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Highlights:

  • Vertical transport cart for VTX B35
  • Compatible with VTX B35 and VTX B35G
  • Truck-friendly footprint
  • Integrated stacking features for efficient storage
  • Lightweight aluminum and steel construction
  • Heavy-duty tour-grade casters
  • Compatible with the VTX A12 VT GND outrigger system

Included:

  • (1) VTX B35 VT
  • (1) Bracket Set for VTX B35G
  • (1) Black Ratchet Strap

Documentazione
VTX B35 VT CVR | Vertical Transport Cover for B35 and B35G
VTX B35 VT CVR Main photo
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Highlights:

  • Heavy-duty soft cover for VTX B35 VT
  • Covers stacks of two or three enclosures
  • Input-panel access flaps for system testing
  • Clear window for shipping labels and identification
  • Handle cutouts for convenient handling
  • Heavy-duty industrial-grade zippers
  • Foldable design for compact storage

Included:

  • (1) Cover

Documentazione
VTX B35 ACC | Accessory Cover & Caster Board for B35 and B35G
VTX B35 ACC Main photo
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Highlights:

  • Front-face dolly and protective cover for VTX B35
  • Cover includes handle cutouts and a rear-panel access flap
  • Heavy-duty tour-grade casters
  • Stackable design for convenient storage
  • Spring-loaded release mechanisms
  • Compatible with VTX B35 and VTX B35G

Included:

  • (1) Caster Board
  • (1) Cover

Documentazione

Notizie

Video

 

 

 

 

 

 

 

 

Supporto/FAQ

HARMAN Professional Solutions: