The JBL Control 24CT is a 4-inch two-way ceiling speaker for background music and paging in shops, restaurants, offices and schools. It has a 100V/70V line transformer with selectable taps and also runs at 16 ohms, so it suits both distributed 100V systems and low-impedance amplifiers. It comes with grille, back can and tile rails for drop-ceiling installation.
4in
2-way coaxial
130°
Conical coverage
30W
Max 100V tap
16 ohm
Low-Z option
Features
100 mm (4 in) woofer with butyl rubber surround, coaxially mounted 19 mm titanium-coated tweeter
100V taps at 30W, 15W and 7.5W; 70V taps at 30W, 15W, 7.5W and 3.7W
16 ohm low-impedance operation
130° conical coverage, so fewer speakers are needed per area
Supplied with grille, back can and tile rails
White finish
Sold individually
Specifications
| Frequency range | 80 Hz to 20 kHz |
| Power capacity | 80W continuous programme, 40W continuous pink noise |
| 100V taps | 30W, 15W, 7.5W |
| 70V taps | 30W, 15W, 7.5W, 3.7W |
| Nominal impedance | 16 ohms |
| Coverage | 130° conical |
| Directivity index | 3.8 dB (500 Hz to 4 kHz) |
| Maximum SPL | 102 dB at 1 m |
| Depth | 100 mm |





