JBL C24CT-BK 4" 2-WAY Coaxial Ceiling Spk W Transformer, Blk (Pair) B-Stock

JBL C24CT-BK 4" 2-Way Coaxial Ceiling Speaker with Transformer

The C24CT-BK is a professional-grade ceiling speaker engineered for distributed audio systems in commercial and institutional spaces. Its compact 7.2" depth allows for seamless flush-mount installation in standard ceiling cavities, while the included back can and tile rails simplify setup. This coaxial design delivers consistent coverage without requiring multiple speaker placements.

Distributed-Line System Compatibility

The integrated 30W multitap transformer supports both 70V and 100V line configurations—essential for long-run installations in offices, retail, hospitality, and education settings. Switchable taps at 30W, 15W, 7.5W (plus 37W at 70.7V) allow you to match impedance to system requirements without external transformers or adapters.

Acoustic Coverage & Protection

The coaxially mounted 4" woofer with butyl rubber surround and 0.75" titanium-coated diffraction-loaded tweeter produce a 130° coverage pattern across an 80 Hz–20 kHz frequency response, ensuring even sound distribution throughout typical room sizes. SonicGuard Overload Protection safeguards the drivers against peak-level damage in sustained-operation environments.

Key Features

• 4" woofer with butyl rubber surround
• 0.75" titanium-coated diffraction-loaded tweeter
• Coaxial speaker design for integrated frequency response
• 30W multitap transformer for 70V or 100V distributed-line systems
• Switchable transformer taps: 30W, 15W, 7.5W (plus 37W at 70.7V)
• Frequency Response: 80 Hz to 20 kHz
• 86 dB sensitivity
• 130° coverage pattern
• 7.2" depth from flush ceiling
• Formed steel back can
• Includes grille, back can, and tile rails
• SonicGuard Overload Protection

The C24CT-BK combines flexible transformer configuration, reliable overload protection, and professional acoustic engineering into a single compact fixture suitable for mission-critical audio distribution.