JBL Professional Control 924CT

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The Control 924CT is a compact in-ceiling speakers, providing full, high quality sound for background music and music-plus-paging systems.

Coaxially mounted, high power, 100 mm (4 in) woofer with butyl rubber surround and 19 mm (¾ in) titanium coated diffraction-loaded tweeter
Wide frequency response and low distortion
Wide coverage allows fewer speakers, reducing the cost of the installed sound system without sacrificing performance
Packaged with grille, backcan and tile rails for fast installation and easy dealer stocking
100V/70V transformer for use on distributed loudspeaker lines

频率范围	78 Hz - 20.2 kHz
功率容量	84 Watts Continuous Program Power42 Watts Continuous Pink Noise
标称灵敏度	86 dB SPL @ 1 m (3.3 ft)
覆盖角度	130° conical coverage
Directivity Factor (Q)	2.4 averaged 500 Hz to 4 kHz
Directivity Index (DI)	3.8 averaged 500 Hz to 4 kHz
Maximum SPL (1m)	102 dB @ 1 m (3.3 ft)
变压器抽头	70V: 30W, 15W, 7.5W & 3.7W taps100V: 30W, 15W, & 7.5W taps
Low-Frequency	100 mm (4.0 in) Polypropylene-coated, 1" coil on aluminum former
High-Frequency	19 mm (0.75 in) Titanium coated polyester