The JBL's C24CT MICROPLUS is a passive 4.5" low-profile ceiling speaker with a 25W multi-tap transformer for voice amplification and background music reproduction in a range of venues ranging from retail stores to restaurants, and is sold as a pair. The 4.5" injection-molded graphite woofer and 0.5" polycarbonate tweeter have a frequency range of 80 Hz to 25 kHz when driven by a 70V/100V power amplifier (available separately). A built-in crossover network guarantees that frequencies are distributed properly to the speaker components.
This thin public address system is well suited for installation in ceilings with limited vertical space, with a 150° coverage pattern and a depth of roughly four inches. Easy installation is aided with screw-down terminal connections, detachable grilles, C-shaped support plates, tile rails, and cutting templates.