JBL Professional CBT 1000 Constant Bandwidth Technology 2-Way Adjustable Coverage Line Array, Column Speaker, White

For venues that demand predictable coverage and intelligible audio, the JBL Professional CBT 1000 line array column speaker delivers targeted, high-impact sound where you need it. JBL Professional’s Constant Bandwidth Technology and adjustable vertical coverage let integrators shape the beam to match room geometry—providing consistent directivity up to 20 kHz and reducing off-axis lobing that can muddy speech and paging. The compact column houses twenty-four 1" tweeters and six 6.5" low-frequency drivers, producing high SPL (137 dB) and tight bass response down to approximately 45 Hz so a single speaker can serve large listening areas with minimal spill.

Switchable voicing modes let you optimize for music or speech, making the CBT 1000 ideal for auditoriums, houses of worship, stadium concourses, transit centers, and security monitoring / surveillance PA tasks. Built-in wall mounting hardware and weather-tolerant design speed deployment in fixed-install applications. Specify the CBT 1000 to improve coverage consistency, reduce amplifier count, and simplify system design—contact sales to configure for your next installation or add it to your project list.

• Precise, adjustable vertical coverage maps sound to room geometry for even front-to-back levels, reducing hot spots and wasted energy
• Constant Bandwidth Technology delivers consistent directivity up to 20 kHz for clearer speech and music with less off-axis lobing
• High output, single-speaker coverage (137 dB SPL) and extended low end to ~45 Hz provide powerful, intelligible sound without extra enclosures
• Switchable voicing (music or speech) optimizes clarity for installations like auditoriums, houses of worship, and transit centers
• Compact column form with included swivel pan/tilt wall bracket simplifies installation for both indoor and outdoor monitoring and security announcement systems