The Control 445C/T is a 5.25" RBI-Equipped two-way coaxial ceiling loudspeaker, from the Control Contractor 400 Series. Transducers are LF: 130 mm (5.25 in) with treated paper cone and high-performance magnet HF: 20 mm (0.75 in) soft-dome with Neodymium magnet. Nominal coverage is 120 degrees conical. JBL rates it at 112 W (448 W Peak), Cont. Pink Noise (2 hrs.) 75 W (300 W Peak) Cont. Pink Noise Power (100 hrs.). Maximum SPL at 1 m is 108.5 dB Cont. pink noise (114.5 dB peak). Nominal impedance is 8.

Transformer taps are 70 V: 60 W, 30 W, 15 W & 7.5 W 100 V: 60 W, 30 W, 15 W. Environmental rating: IP rating: IP33 per EN/IEC 60529. Operating temperature: 0 degrees C to 45 degrees C. It measures 255 mm (10.4 in) H x 260 mm (10.2 in) dia. 240 mm (9.6 in) from bottom of ceiling tile to top of backcan.

Type	5.25" RBI-Equipped Two-Way Coaxial Ceiling Loudspeaker
Frequency Range (-10 dB)	55Hz - 20kHz
Power Capacity	112 W (448 W Peak), Cont. Pink Noise (2 hrs.) 75 W (300 W Peak) Cont. Pink Noise Power (100 hrs.)
Sensitivity (1m/1W)	88dB
Coverage Angle	120 degrees conical
Maximum SPL (1m)	108.5 dB Cont. pink noise (114.5 dB peak)
Nominal Impedance	8
Transformer Taps	70 V: 60 W, 30 W, 15 W & 7.5 W 100 V: 60 W, 30 W, 15 W
Drivers	LF: 130 mm (5.25 in) with treated paper cone and high-performance magnet HF: 20 mm (0.75 in) soft-dome with Neodymium magnet