Control 321CT
12 in. Coaxial Ceiling
Loudspeaker with HF
Compression Driver


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

  • 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.

Frequency Range (-10 dB) 34 Hz – 18 kHz
Power Rating 200 W (600 W peak), 100 hrs
Taps 70V: 68W, 34W, 17W, 8.5W
100V: 68W, 34W, 17W
Frequency Response (±3 dB) 47 Hz – 16 kHz
Coverage Pattern 90° conical, broadband (Avg 1k - 16kHz)
Directivity Factor (Q) 8.7 (1k - 16kHz)
Directivity Index (DI) 9.4 dB (1k - 16kHz)
Sensitivity (2.83V@ 1m) 94 dB measured half-space
99 dB computed for competitive comparison
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)