JBL C24CT-BK 4" 2-WAY Coaxial Ceiling Spk W Transformer, Blk
Description
JBL C24CT-BK 4" 2-Way Coaxial Ceiling Speaker with Transformer
The C24CT-BK is a professional-grade ceiling speaker engineered for studio monitoring and control-room applications where distributed audio feeds are needed across multiple zones. 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, full-range coverage without requiring multiple speaker placements for balanced headphone-free monitoring in tracking, mixing, and mastering spaces.
Transformer-Balanced Configuration for Studio Flexibility
The integrated 30W multitap transformer supports both 70V and 100V line configurations—essential for long-run installations between control rooms, live tracking booths, and machine rooms. Switchable taps at 30W, 15W, 7.5W (plus 37W at 70.7V) allow you to match impedance to your system requirements without external transformers or adapters, giving you precise level matching across monitoring zones.
Consistent Acoustic Response for Critical Listening
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 and phase-coherent imaging throughout your studio environment. SonicGuard Overload Protection safeguards the drivers against peak-level damage during long recording and mixing sessions.
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 ideal for studio environments requiring robust multi-zone monitoring distribution.
More Information
| Condition | New |
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Reviews
At a Glance
The JBL C24CT-BK is a professional distributed-line ceiling speaker with an integrated multitap transformer designed for commercial audio systems, not studio monitoring or music recording. Its 70V/100V transformer taps and switchable power levels make it a tool for system design and installation rather than tracking, mixing, or critical listening — skip this if you're building a studio or control room.
Who This Is For
Great for
- ✓ Commercial installations
- ✓ Distributed audio systems
- ✓ Office/retail/hospitality spaces
- ✓ Institutional environments
Not the best pick for
- – Live music venues
- – Studio monitoring
- – High-fidelity music playback
Skill level: Professional
Frequently Asked Questions
What does the integrated transformer do, and do I need external equipment?
The built-in 30W multitap transformer supports both 70V and 100V distributed-line systems with switchable taps at 30W, 15W, 7.5W (plus 37W at 70.7V), so you can match impedance directly without external transformers or adapters. This simplifies long-run installations in large commercial spaces.
How difficult is the installation?
The C24CT-BK is designed for flush mounting in standard ceiling cavities with a compact 7.2" depth. It includes a formed steel back can and tile rails for straightforward integration into drop ceilings and drywall.
What coverage pattern and frequency range does it deliver?
The coaxial 4" woofer and 0.75" titanium-coated tweeter produce a 130° coverage pattern and 80 Hz–20 kHz frequency response, ensuring even sound distribution in typical office, retail, and hospitality room sizes.
Is this suitable for live music venues or studio monitoring?
No. The C24CT-BK is engineered for commercial distributed audio in offices, retail, and institutional spaces — not live venues or high-fidelity music playback. Its compact design and transformer configuration prioritize system flexibility over music-grade reproduction.
What protection does it offer against speaker damage?
SonicGuard Overload Protection safeguards the drivers against peak-level damage in sustained-operation environments, making it reliable for always-on or high-duty-cycle installations.
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