The JBL Control 321C has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker.

Product Specifications:

Frequency Range (-10dB): 34 Hz 18 kHz

Sensitivity: 94 dB (1 kHz – 16 kHz)

Frequency Response (3 dB): 47 Hz 16 kHz

Coverage Angle: 90 conical, constant directivity

Directivity Factor (Q): 8.7 (1k – 16kHz)

Directivity Index (DI): 9.4 dB (1k – 16kHz)

Crossover Network: 1.8 kHz, 3rd order (18 dB/oct) high-pass plus conjugate to HF

Impedance: 5.6 ohms

Dimensions (H x W x D): 366 x 366 mm (14.4 x 14.4 in)

Maximum SPL (1m): 118 dB (124 dB peak)

Input Connectors: Screw locking barrier strip for bare wire

Drivers: LF Driver: 300 mm (12 in)

HF Driver: compression driver, 25 mm (1 inch) coil

Color: White

Backcan: formed steel (wood-lined; accessory)

Baffle/Rim: Metal, driver pre-mounted to baffle, ported.

Ceiling Cutout Size: 378 x 378 mm (14.9 x 14.9 in) (for MTC-300BB12 backcan)

Plenum Usage: Yes, with accessory backcan