JBL Professional CBT 70J-1 Constant Bandwidth Technology 2-Way Line Array Column Speaker with Asymmetrical Vertical Cove, Black

Designed for professional installations where intelligible voice and predictable coverage matter, the JBL Professional CBT 70J-1 line array column speaker delivers consistent vertical coverage and powerful, long-throw audio for security, surveillance, and public address applications. JBL’s Constant Beamwidth Technology combines analog delay beamforming and amplitude tapering to avoid narrow beaming and out-of-coverage lobing—so announcements and alerts remain clear across a monitored area. Rated at 350W RMS with 98 dB sensitivity and a 60 Hz–20 kHz frequency range, the CBT 70J-1 reproduces speech and program material with authority and clarity while remaining easy to drive on an 8-ohm load. The rugged ABS, aluminum and fiberglass enclosure is UV and weather resistant for reliable outdoor performance, and the asymmetrical vertical cove lets integrators aim coverage to prioritized zones—reducing wasted energy and background spill. Ideal for perimeter monitoring, stadiums, transit hubs, campus-wide paging, and emergency notification systems, this JBL Professional column speaker simplifies installation and improves overall system intelligibility. Specify the CBT 70J-1 for dependable, mission-ready audio coverage—contact your rep to configure and deploy.

• Predictable, even vertical coverage with Constant Beamwidth Technology minimizes hot spots and improves speech intelligibility for security and public address
• High output and efficiency (350W RMS, 98 dB sensitivity) for long-throw voice notification and monitored-area paging without distortion
• Weather- and UV-resistant cabinet designed for reliable outdoor installation in surveillance, perimeter monitoring, and stadium environments
• Asymmetrical vertical coverage allows targeted sound distribution to prioritize audience or monitored zones and reduce unwanted spill
• Flexible mounting (freestanding or wall-mount) and 8-ohm compatibility simplify integration with existing pro audio and security systems
• Backed by a 5-year limited warranty for long-term reliability in mission-critical installations