JBL Control 321C 12 in. Coaxial Ceiling Loudspeaker with Compression Driver (Each)
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Description
The JBL Control 321C is a large-format coaxial ceiling loudspeaker for clear speech and full-range music from the ceiling. A 300 mm (12 in) Kevlar-reinforced woofer with a 50 mm (2 in) voice coil and a coaxial 25 mm (1 in) exit compression driver give consistent 90° coverage. Sold in pairs; this listing is for one speaker.
It handles 250 W with high sensitivity for high SPL, and a high-slope crossover keeps coverage constant and the midrange natural. The drivers come mounted on a ported metal baffle that fits the MTC-300BB12 back box; the back box, the MTC-300SG12 grille and the MTC-300T150 150 W transformer are sold separately.
Features
- Consistent 90° broadband pattern control
- 300 mm (12 in) Kevlar-reinforced woofer with 50 mm (2 in) voice coil and 25 mm (1 in) exit compression driver
- 250 W power handling with high sensitivity
- High-slope crossover for constant coverage and a natural midrange
- Optional back box, grille and 150 W 70V/100V transformer
Specifications
- Frequency range (-10 dB): 34 Hz to 18 kHz
- Frequency response (±3 dB): 47 Hz to 16 kHz
- Power rating (IEC): 250 W continuous pink noise (1000 W peak), 2 hrs; 200 W (800 W peak), 100 hrs
- Sensitivity: 94 dB (1 kHz to 16 kHz)
- Coverage: 90° conical, constant directivity
- Directivity factor (Q): 8.7 (1 kHz to 16 kHz)
- Directivity index (DI): 9.4 dB (1 kHz to 16 kHz)
- Crossover: 1.8 kHz; 3rd order (18 dB/oct) high-pass to HF, 2nd order low-pass to LF
- Impedance: 5.6 ohms
- Maximum SPL (1 m): 118 dB (124 dB peak)
- Drivers: LF: 300 mm (12 in) Kevlar-reinforced cone, 50 mm (2 in) voice coil; HF: JBL 2412H-1 compression driver, 25 mm (1 in) voice coil
- Input connectors: Screw-locking barrier strip for bare wire
- Baffle: Metal, ported, drivers pre-mounted
- Compatible back box: MTC-300BB12, 80 liters (3 cu ft), sold separately
- Safety: Suitable for air handling spaces per UL1480, UL2043, NFPA 90 and NFPA 70 when installed with a UL listed backcan; S7232/UL listed signaling speaker
- Ceiling cutout: 378 x 378 mm (14.9 x 14.9 in) for the MTC-300BB12 back box
- Dimensions: 366 x 366 mm (14.4 x 14.4 in) square baffle; 223 mm (8.8 in) deep from the back of the baffle
- Net weight: 7.3 kg (16.0 lb) each
- Color: White