The Control 424C/T is a 4" CRBI-Equipped two-way coaxial ceiling loudspeaker, from the Control Contractor 400 Series. Transducers are LF: 100 mm (4 in) with treated paper cone and high-performance magnet HF: 19 mm (0.75 in) textile soft-dome with Neodymium magnet assembly. Nominal coverage is 130 degrees conical. JBL rates it at 60W (240 W Peak), Cont. Pink Noise (2 hrs.) 40 W (160 W Peak) Cont. Pink Noise Power (100 hrs.). Maximum SPL at 1 m is 103 dB continuous pink noise (109 dB peak). Nominal impedance is 16.

Transformer taps are 70 V: 30 W, 15 W, 7.5 W & 3.7 W 100 V: 30 W, 15 W, 7.5 W. Environmental rating: IP33 rating per EN/IEC 60529. Operating temperature 0 degrees C to 45 degrees C. It measures 182 mm (7.2 in) H x 196 mm (7.7 in) dia. 173 mm (6.8 in) from bottom of ceiling tile to top of backcan. Ordering covers CONTROL-424C/T and C424C/T; pick the one you need above and the SKU and price follow your choice.

Type	4" CRBI-Equipped Two-Way Coaxial Ceiling Loudspeaker
Frequency Range (-10 dB)	75Hz - 18kHz
Power Capacity	60W (240 W Peak), Cont. Pink Noise (2 hrs.) 40 W (160 W Peak) Cont. Pink Noise Power (100 hrs.)
Sensitivity (1m/1W)	85dB
Coverage Angle	130 degrees conical
Maximum SPL (1m)	103 dB continuous pink noise (109 dB peak)
Nominal Impedance	16
Transformer Taps	70 V: 30 W, 15 W, 7.5 W & 3.7 W 100 V: 30 W, 15 W, 7.5 W
Drivers	LF: 100 mm (4 in) with treated paper cone and high-performance magnet HF: 19 mm (0.75 in) textile soft-dome with Neodymium magnet assembly