JBL Control 321CT 12-inch Coaxial Ceiling Loudspeaker, 70V Line

The JBL Control 321CT 12-inch Coaxial Ceiling Loudspeaker has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker.

JBL Control 321CT 12-inch Coaxial Ceiling Loudspeaker Features

- Consistent 90° broadband pattern control
- Components:
  - 300 mm (12 in) woofer with Kevlar-reinforcedcone with 50 mm (2 in) voice-coil
  - 25 mm (1 exit) compression driver
- Extraordinary clarity for speech and vocals with extended frequency response for music
- 250 Watt power handling with high sensitivity provides high SPL capability
- Advanced high-slope crossover network for constant coverage and smooth, natural midrange
- Clean, contemporary grille and optional backbox available

JBL Control 321CT 12-inch Coaxial Ceiling Loudspeaker Specifications

- 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
- Transformer Taps: 68W, 34W, 17W, (& 8.5W @ 70V)
- 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)
- Sensitivity: 94 dB (1 kHz - 16 kHz)
- Crossover Network: 1.8 kHz, 3rd order (18 dB/oct) high-pass plus conjugate to HF, 2nd order low-pass to LF
- 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 240 mm (9.5 in)
- Maximum SPL (1m): 118 dB (top 70V/100V tap)
- 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

JBL Control 321CT 12-inch Coaxial Ceiling Loudspeaker Supplied With

  - JBL Control 321CT Speaker
  - Ported baffle pre-attached
  - Line Transformer