JBL Control 24CT


JBL Control 24CT High power handling, wide frequency response and low distortion - Image

High power handling, wide frequency response and low distortion

Make the Control 24CT ideal for sound systems requiring a higher fidelity sound from ceiling loudspeakers

JBL Control 24CT Includes a multitap transformer - Image

Includes a multitap transformer

For use on 70V or 100V line distribution systems

JBL Control 24CT Extremely broad 130° coverage pattern - Image

Extremely broad 130° coverage pattern

Allows for fewer speakers to be used, making for a simpler and less expensive installation

Specs & Downloads



Background/Foreground Ceiling Loudspeaker w/Multitap Transformer

The Control 24C is a compact ceiling speaker providing premium performance in background, foreground and music-plus-paging sound systems. The Control 24C is perfectly suited for a wide variety of applications from professional offices and airports to restaurants and specialty retail stores. High power handling, wide frequency response and low distortion make the Control 24C ideal for sound systems requiring a higher fidelity sound from ceiling loudspeakers. The premium performance capability ensures excellent sound character, providing pleasant, enveloping sound throughout the listening area. The Control 24C’s 16 ohm impedance allows use of multiple speakers in parallel without having to use a more expensive constant voltage distributed system. The optional Control 24CT version includes a multitap transformer for 70V/100V systems. JBL’s exclusive SonicGuard overload protection is a non-invasive loudspeaker protection system that is inaudible to the listener, ensuring reliability while providing full fidelity sound. The computer-optimized ported enclosure delivers warm, smooth bass response. Low frequency output can be further augmented with the addition of one of the Control Contractor subwoofer models. The 100 mm (4 in) woofer features a polypropylene-coated cone and pure butylrubber surround for long life, even in high humidity environments. An aluminum voice coil former provides extra cooling for greater long-term power handling. The coaxially mounted 19 mm (¾ in) titanium coated tweeter provides crisp, clear highs. Diffraction-loading of the tweeter provides wide, even coverage of the listening area. The extremely broad 130° coverage pattern allows for fewer speakers to be used, making for a simpler and less expensive installation.

General Specifications

Frequency Range (-10 dB)
80 Hz - 20 kHz
Power Capacity
80 Watts Continuous Program Power ; 40 Watts Continuous Pink Noise
Nominal Sensitivity
86 dB SPL @ 1 m (3.3 ft)
Nominal Coverage Angle
130° conical coverage
Directivity Factor (Q)
2.4 averaged 500 Hz to 4 kHz
Directivity Index (DI)
3.8 averaged 500 Hz to 4 kHz
Rated Maximum SPL
102 dB @ 1 m (3.3 ft)
Transformer Taps
070V = 30W, 15W, 7.5W & 3.7W taps ; 100V = 30W, 15W, & 7.5W taps
Low Frequency Transducer
100 mm (4.0 in) Polypropylene-coated, 1" coil on aluminum former
High Frequency Transducer
19 mm (0.75 in) Titanium coated polyester
Included Accessories
C-shaped support backing plate ; 2 tile support rails (fits both 2 x 4 ft or 600 x 1200 mm tiles) ; Cutout template ; Paint shield ; Removable locking wiring connector


Outside Dimensions (H x Dia)
200 x 195 mm (7.9 x 7.7 in) 184 mm (7.2 in) front of ceiling tile to back of backcan
Cutout Size
168 mm (6.6 in)
Net Weight (ea)
3.5 kg (8 lb)
Shipping Weight
4.0 kg (9 lb)


Formed steel
Medium impact polystyrene, fire rated UL94V-0
Removable locking connector with screw-down terminals. 2 input terminals and 2 loop-thru output terminals. Max. wire size 12 AWG (2.5 mm)
Safety Agency Rating
Suitable for use in air handling spaces per UL1480, UL2043, NFPA90 & NFPA 70. S7232/UL Listed, Signaling Speaker. Transformer UL registered per UL1876. In accordance with IEC60849/EN60849.

What's in The Box?

  • 1 x Control 24CT
  • 1 x C-shaped support backing plate
  • 2 x Tile support rails (fits both 2 ft and 600 mm tiles)
  • 1 x Cutout template, cardboard
  • 1 x Paint shield
  • 1 x Removable locking wire connector

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