The Control 321C is a 12-inch coaxial ceiling loudspeaker that features a high-frequency compression driver. It utilizes a coaxial point source design to integrate the low-frequency and high-frequency transducers into a single acoustic source. This configuration is intended for ceiling installation and is designed to provide consistent sound dispersion and coverage.

• Consistent 90° broadband pattern control
• 300 mm (12 in) woofer with Kevlar-reinforced cone and 50 mm (2 in) voice coil
• 25 mm (1 in) compression driver
• Extraordinary clarity for speech and vocals with extended frequency response for music
• 250 Watt power handling with high sensitivity and high SPL capability
• Advanced high-slope crossover network for constant coverage and smooth midrange

Frequency Range	34 Hz – 18 kHz
Power Rating	250 W continuous pink noise (1000 W peak), 2 hrs
Sensitivity	94 dB (1 kHz - 16 kHz)
Frequency Response	47 Hz – 16 kHz
Coverage Angle	90° conical, constant directivity
Directivity Factor	8.7 (1 kHz - 16 kHz)
Directivity Index	9.4 dB (1 kHz - 16 kHz)
Crossover Network	1.8 kHz, 3rd order high-pass plus conjugate to HF, 2nd order low-pass to LF
Impedance	5.6 ohms
Maximum SPL	118 dB (124 dB peak)