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JBL extends VTX series

JBL extends VTX series

JBL extends VTX series

JBL Professional creates a next-generation dual 18-inch subwoofer

Designed to complement the VTX full-range sound reinforcement systems, JBL Professional has created a next-generation dual 18-inch subwoofer. Differential Drive technology endows the drivers with increased performance and SlipStream port technology offers improved airflow and reduced audible turbulence at any operating level. Following in the footsteps of the A8 and A12 rigging designs, the B28 is housed within an integrated rigging system for suspension in omnidirectional or cardioid arrays of up to 16 enclosures. The rigging and a comprehensive collection of accessories extend its flexibility within mobile and installation applications. Integrating with HiQNet Performance Manager and Line Array Calculator (LAC) software, the B28 sports the same industrial design as A- and B-Series loudspeakers.

Engineered for improved linearity, efficiency and extra-long excursion, two JBL Differential Drive 2288H-M 18-inch woofers lie at the core of the B28. The combination of the 2288H-M drivers and the large, central, flared port deliver LF output without distortion or artefacts. FEA-optimised integral bracing eliminates inter-cabinet standing waves, improves rigidity and simplifies the structural design. Mounting and configuration enhances versatility options. Avoiding traditional quick release pins and retaining cables that can get damaged or lost, the two-point rigging system uses integrated levers and locks. This enables the B28 to be stacked vertically or horizontally, using the independent sets of feet on the bottom and sides, while the spring-loaded design is said to ensure there is no rattling during operation. Universal M20 mounts interface with supported VTX accessories for constructing complete ground-stacked arrays. NL4 connectors on both the front and rear of the unit enable convenient wiring in standard or cardioid configurations.



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