Description
The JBL Control 321C is a high-performance coaxial point source ceiling loudspeaker engineered to deliver exceptional next-generation sound quality. It is designed for professional and commercial audio installations where clear speech, powerful vocals, and extended music performance are required.
The Control 321C features a 300 mm / 12-inch woofer with a Kevlar-reinforced cone and a 25 mm / 1-inch compression driver, delivering excellent clarity and smooth sound reproduction. Its consistent 90° broadband pattern control ensures uniform coverage across the listening area.
With 250 W power handling and high sensitivity, the Control 321C provides strong SPL capability. It also includes an advanced high-slope crossover network for constant coverage and smooth, natural midrange performance. A clean, contemporary grille and optional backbox are available for installation flexibility.
More Information
Key Features
- Coaxial point source ceiling loudspeaker
- Designed for next-generation audio performance
- Consistent 90° broadband pattern control
- 300 mm / 12 in woofer
- Kevlar-reinforced woofer cone
- 50 mm / 2 in woofer voice coil
- 25 mm / 1 in exit compression driver
- Excellent clarity for speech and vocals
- Extended frequency response for music
- 250 W power handling
- High sensitivity for strong SPL output
- Advanced high-slope crossover network
- Constant coverage performance
- Smooth and natural midrange
- Clean, contemporary grille design
- Optional backbox available
- Suitable for professional and commercial ceiling installations
Technical Specification
- Model: JBL Control 321C
- System Type: Coaxial point source ceiling loudspeaker
- Frequency Range (-10 dB): 34 Hz – 18 kHz
- Frequency Response (±3 dB): 47 Hz – 16 kHz
- 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
- Coverage Angle: 90° conical, constant directivity
- Directivity Factor (Q): 8.7, 1 kHz – 16 kHz
- Directivity Index (DI): 9.4 dB, 1 kHz – 16 kHz
- Maximum SPL: 118 dB continuous, 124 dB peak
- Impedance: 5.6 ohms
- Crossover Network: 1.8 kHz
- High-Pass Filter: 3rd order, 18 dB/oct with conjugate to HF
- Low-Pass Filter: 2nd order to LF
- Input Connectors: Screw locking barrier strip for bare wire
- LF Driver: 300 mm / 12 in woofer
- HF Driver: Compression driver with 25 mm / 1 in coil
- Dimensions: 366 × 366 mm / 14.4 × 14.4 in square baffle
- Depth: 223 mm / 8.8 in from back of baffle
- Ceiling Cutout Size: 378 × 378 mm / 14.9 × 14.9 in for MTC-300BB12 backcan
- Color: White
- Backcan: Formed steel, wood-lined, accessory
- Baffle / Rim: Metal, driver pre-mounted to baffle, ported
- Plenum Usage: Yes, with accessory backcan
