CONTROL 328CT

The JBL Control 328CT is a 8” coaxial ceiling loudspeaker with HF compression driver, for excellent speech and vocal clarity.

From the Manufacturer:

Control 328CT has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker.

Features:

• Consistent 120° broadband pattern control covers an extremely large area.
• Shaped mounting baffle provides the pattern control of a 300 mm (12 in) horn from a 200 mm (8 in) driver.
• Components
  • 200 mm (8 in) woofer with Kevlar-reinforced cone and 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 very 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.

Specifications:

• Frequency Range (-10dB): 45 Hz – 18 kHz
• Power Rating: See transformer taps
• Transformer Taps: 68W, 34W, 17W, (& 8.5W @ 70V)
• Frequency Response (±3 dB): 60Hz – 16 kHz
• Coverage Angle: 120° conical, constant directivity
• Impedance: 8 ohms
• Directivity Factor (Q): 7.0 (Avg 1k - 16kHz)
• Directivity Index (DI): 8.5dB (Avg 1k - 16kHz)
• Sensitivity: 93 dB (1 kHz - 16 kHz)
• Maximum SPL (1m): 118 dB (top 70V/100V tap)
• Crossover Network: 1.9 kHz, 3rd order (18 dB/oct) high-pass plus conjugate
• Dimensions (H x W x D): 305 mm (12.0 in.) diameter round baffle x depth from back of baffle of 218 mm (8.6 in)
• Input Connectors: Screw locking barrier strip for bare wire
• Drivers: LF Driver: 200 mm (8 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-300BB8. S7232/UL Listed, Signaling Speaker. Transformer UL registered per UL1876. In accordance with IEC60849/EN60849.
• Backcan: formed steel (wood-lined; accessory)
• Baffle/Rim: Metal, round, driver pre-mounted to baffle, ported.
• Ceiling Cutout Size: 310 mm (12.2 in) diameter (for MTC-300BB8 backcan)
• Included Accessories: Ported baffle pre-attached, plus transformer on 328CT.
• Optional Accessories: MTC-RG6/8 Grille, round contoured, white. MTC-SG6/8 Grille, square, contoured, white. MTC-300BB8 Backbox, 25 liters (1 cubic feet)
• Plenum Usage: Yes, with accessory backcan