At InfoComm 2011, JBL Professional announced the upgrade of its popular CBT Series (Constant Beamwidth Technology) column loudspeakers, with the inclusion of new brackets that not only allow adjustment of up/down tilt, but also allow adjustment of the side-to-side aiming.
The new swivel (pan)/ tilt brackets are packaged with the speakers, allowing increased versatility of aiming adjustment. In addition, grilles on models CBT 70J-1 and CBT 70JE-1 are thicker and stronger, which make these speakers more robust for use in temporary special event applications.
JBL also announced optional MTC-CBT-FM flush-mount brackets for close-to-the-wall mounting of the CBT speakers. The bracket includes a wall piece plus speaker piece that combine together in a simple drop-in configuration.
“We are delighted to update our CBT lineup with new installation versatility,” said Rick Kamlet, Senior Marketing Manager for Commercial Installed Sound at HARMAN’s Loudspeaker Business Unit. “The update to the included brackets allows pan aiming, while the optional flush-mount brackets allow the columns to be mounted with their backs flush to the wall for instances requiring a low profile.”
JBL’s CBT Series column loudspeakers were the first speakers to incorporate JBL’s newly introduced and patented Constant Beamwidth Technology, using passive beam-forming components to deliver constant directivity coverage from a passive column, resulting in consistent frequency response at every listener location.
Another of CBT’s technological firsts is the ability to switch the vertical coverage pattern of a non-powered speaker with a simple switch. The CBT 70J-1 model provides asymmetrical vertical coverage, sending more sound toward the far area of the room than to the near area, resulting in more consistent SPL levels within the room from front-to-back.
CBT models range from an ultra-compact CBT 50LA-1 column all the way up to the large 2-way, high-fidelity 1000-Watt full-range CBT 70J-1/70JE-1 array, all at a fraction of the cost of powered digitally-steered columns.
