12 in. Coaxial Ceiling Loudspeaker with HF Compression Driver
The Control 321C has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker.
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The Control 321C has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker.
Frequency Range (-10dB) | 34 Hz – 18 kHz |
Power Rating | IEC Long-Term System Power Rating: 250 W continuous pink noise (1000 W peak), 2 hrs 200 W continuous pink noise (800 W peak), 100 hrs |
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, 2nd order low-pass to LF |
Impedance | 5.6 ohms |
Dimensions (H x W x D) | 366 x 366 mm (14.4 x 14.4 in) square baffle x depth from back of baffle of 223 mm (8.8 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 |
Safety Agency | Suitable for use in air handling spaces per UL1480, UL2043, NFPA90 & NFPA 70 when installed with UL listed backcan such as JBL MTC-300BB12. S7232/UL Listed, Signaling Speaker. Transformer UL registered per UL1876. In accordance with IEC60849/EN60849. |
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) |
Optional Accessories | MTC-300SG12 Grille, square contoured, white. MTC-300BB12 Backbox, 80 liters (3 cubic feet) MTC-300T150 Transformer, 150 W for use with 321C. |
Plenum Usage | Yes, with accessory backcan |