JBL CONTROL-24 CT 4″ 2-Way Ceiling Speaker with 70V/100V Transformer in White PAIR


The JBL Control 24CT 4″ two-way ceiling speaker is the most compact of the JBL ceiling speakers. The Control 24CT contains a coaxially mounted 4″ woofer and 3/4″ titanium-coated tweeter, providing high-fidelity sound over an extremely wide coverage area. The Control 24CT includes a multitap transformer for 70V or 100V systems. NOTE: This item is priced per speaker but is ONLY sold in pairs.


  • 80 Hz to 20 kHz frequency range (-10 dB)
  • 80 watts continuous program power capacity
  • 86 dB sensitivity (1W/1m)
  • 16 ohms nominal impedance
  • 130° conical coverage (polar)
  • Steel back-can with removable locking connector
  • 70V taps: 30W, 15W, 7.5W, 3.7W
  • 100V taps: 30W, 15W, 7.5W
  • Dimensions (height x diameter): 7.9″ x 7.7″ (200 x 195 mm)
  • Net Weights: 3.5 kg (8 lbs)
UPC: 050036904537


SKU: JBLCNTRL24CT Categories: , Tags: ,
Frequency Range -10 dB: 68 Hz to 17 kHz
Frequency Response ±3 dB: 95 Hz to 15 kHz
Power Capacity At low-Z: 40W continuous program power
20W continuous pink noise (CPN)
Sensitivity Nominal: 84 dB
Coverage Angle Nominal: 130° conical coverage
Directivity Factor Q: 9.8
Index DI: 7.4 dB
Sound Pressure Rated Maximum Level: 97 dB @ 3.3′ (1 m) average, 103 dB peak
Nominal Impedance 8 Ω (in direct/bypass 8 Ω setting)
Transformer Taps 15 W, 7.5 W, 3.8 W @ 70V and 100V (& 1.9 W @ 70 V only)
Full Range Drivers 3″ (76 mm) with polypropylene cone, butyl rubber surround, Kapton voice coil former, high-temperature voice coil, aluminum coupling ring for low distortion, and HF extension
Input Connector Removable locking 4-pin connector with screw-down terminals
Maximum Wire Size: 12 AWG (2.5 mm2)
Wiring Connector: Pin 1 = + In; Pin 2 = – In; Pin 3 = + Loop Thru; Pin 4 = – Loop Thru
Strain Relief Strain relief for 2 cables or 2 flex conduits via coupled clamping mechanism
Material ABS baffle with UL94-V0 and UL94-5VB flame class fire rating
Zinc-plated steel backcan
Safety Agency Approvals UL1480, UL2043, NFPA90, & NFPA70; S7232/UL Listed, Suitable for use in air handling spaces, Signaling Speaker; Transformer UL registered per UL1876; ROHS, C-tick N108, CE compliant; Baffle meets UL94-V0 and UL94-5VB flammability rating; In accordance with IEC60849/EN60849 systems
Ceiling Cutout Size Circular cutout with 6.7″ (170.0 mm) diameter (cardboard cutout template included)
Ceiling Thickness Range: Up to 1.4″ (35.0 mm) with stock dog-ears; MTC-TCD thick-ceiling dog-ears available for up to 55 mm (2.2 in) ceiling thicknesses (sold separately)
Attachment Safety Seismic: One point, top surface
Dimensions (Ø x D) From Back of Baffle: 7.7 x 5.4″ (196.0 x 138.0 mm)
Weight One Speaker: 3.5 lb (1.6 kg)
Packaging Info
Package Weight 15.5 lb
Box Dimensions (LxWxH) 26.5 x 9.9 x 9.8″

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