JBL Control 328C 8" Coaxial 2-WAY Ceiling Loudspeaker

JBL Control 328C 8" Coaxial 2-Way Ceiling Loudspeaker

The Control 328C is a coaxial ceiling speaker engineered for consistent, intelligible sound distribution across medium-sized spaces. Its compact round baffle installs flush into standard ceiling cavities, delivering controlled dispersion without the acoustic compromises of conventional point-source designs. Built to professional standards, this speaker handles both speech reinforcement and music playback with precision.

Audio Performance & Frequency Response

The coaxial design places a 25 mm compression driver at the acoustic center of a 200 mm Kevlar-reinforced woofer, ensuring tight phase alignment and smooth tonal continuity. Coverage spans 45 Hz to 18 kHz (−10 dB), with a 120° broadband pattern control that maintains even SPL across the listening area—essential for background music systems and venue installations where coverage gaps create dead spots and listener complaints.

Construction & Reliability

The speaker features a metal, round baffle with a ported design and drivers pre-mounted for fast installation. The high-frequency driver uses a pure titanium diaphragm with diamond surround and FerroFluid cooling, built to handle long hours of continuous operation without fatigue. A removable multi-pin locking connector with screw-down terminals simplifies both initial setup and on-site service when you need quick repairs or upgrades.

Key Features

• 8-inch (200 mm) Kevlar-reinforced woofer with 50 mm (2 in) voice coil
• 25 mm (1" exit) compression driver for high-frequency reproduction
• Frequency range: 45 Hz – 18 kHz (−10 dB)
• 120° broadband pattern control for consistent coverage
• 250W long-term power capacity with 1000W peak handling (8-Ohm amplifier)
• 1.9 kHz crossover, 3rd order (18 dB/oct) high-pass with 2nd order conjugate to HF
• Titanium diaphragm with diamond surround and FerroFluid in compression driver
• 310 mm (12.2 in) diameter ceiling cutout (compatible with MTC-300BB8 backcan)
• Ported metal baffle with drivers pre-mounted
• Removable multi-pin locking connector with screw-down terminals

The Control 328C delivers the controlled dispersion and coaxial coherence demanded by sound contractors, venue managers, and installation professionals who need dependable ceiling coverage night after night.