JBL Control 24CT Micro


JBL Control 24CT Micro Includes a multitap transformer - Image

Includes a multitap transformer

For use on 70V or 100V line distribution systems. The transformer has a top tap rating of 9 Watts.

JBL Control 24CT Micro Low-profile backcan - Image

Low-profile backcan

Fits into restricted depth ceilings

JBL Control 24CT Micro All-in-one speaker assembly - Image

All-in-one speaker assembly

JBL ceiling speakers are packaged as complete assemblies, including integral backcan, front grille, above-ceiling backing and tile bridge support hardware.

JBL Control 24CT Micro Convenient installation - Image

Convenient installation

The entire installation can be accomplished without requiring access above the ceiling, and can be pre-wired allowing ultra-fast snap-on installation.

JBL Control 24CT Micro Safety Approved - Image

Safety Approved

JBL ceiling speakers are UL1480 agency listed for use in air handling spaces. The securely enclosed terminal box meets safety codes.

Specs & Downloads



Background Music Ceiling Loudspeaker w/9 Watt Multitap Transformer

The Control 24C Micro and Control 24CT Micro are compact in-ceiling speakers, providing full, high quality sound for background music and music-plus-paging systems. These speakers are ideally suited for a wide variety of applications, from restaurants and specialty retail stores to professional offices and airports. The Control 24CT Micro includes a multitap transformer for use on 70V or 100V line distribution systems. The transformer has a top tap rating of 9 Watts. Low distortion and a smooth, natural frequency response make the Control 24C/CT Micro ideal for medium volume business music systems as well as for the medium to low SPL segments of larger or louder systems. Low frequency output can be augmented with the addition of one of the Control Contractor subwoofer models. Similar mid/high frequency voicing to other JBL Control Contractor loudspeakers can, in many systems, allow for mixing and matching of models within zones without requiring separate equalization. Installation of the Control 24C/CT Micro is quick and easy. The loudspeaker is packaged with the backcan, grille, support backing bracket and tile rails. In addition, optional new construction brackets are available. The entire installation can be accomplished without requiring access above the ceiling. A template is provided for marking the cutout. An innovative C-shaped support backing plate can be installed from below through the cutout to reinforce the top of the ceiling material. Tile bridge rails are included which can be screwed onto the C-plate to extend support to the T-channel grid in suspended ceiling installations. After the speaker is fitted through the cutout, it is held securely in place via mounting tabs which tighten onto the C-plate, if used, or directly onto the ceiling material. The Control 24C/CT Micro backcan is made of formed steel and the speaker is suitable for use in air handling spaces per UL2043. An attachment loop is provided on the backcan for cabling. A seismic tab is provided as a secondary support. The Control 24C/CT Micro trim and baffle are paintable to match any decor.

General Specifications

Frequency Range
85 Hz - 25 kHz
Nominal Sensitivity
86 dB SPL @ 1 m (3.3 ft)
Crossover Frequency
3.5 kHz
Rated Maximum SPL
94 dB @ 1 m (3.3 ft), 9W tap
Transformer Taps
70V = 9W, 4W, 2W, 1W & 0.5 W taps ; 100V = 9W, 4W, 2W, 1W taps
Low Frequency Transducer
115 mm (4.5 in) IMG (injection molded graphite), 24 mm (1 in) voicecoil
High Frequency Transducer
12 mm (0.5 in) polycarbonate
Included Accessories
C-shaped support backing plate ; 2 tile support rails (fits both 2 ft and 600 mm tiles) ; Cutout template, cardboard
Optional Accessories
MTC-24TR trim ring for retrofit installations ; MTC-24NC optional new construction bracket, flat ; MTC-24MR optional mud ring construction bracket


Outside Dimensions (H x Dia)
106 x 195 mm (4.2 x 7.7 in) ; 105 mm (4.1 in) front of ceiling tile to back of the backcan
Cutout Size
167 mm (6.6 in)
Net Weight (ea)
2.0 kg (4.4 lb)
Shipping Weight (pr)
4.4 kg (9.7 lb)


Formed steel
Medium impact polystyrene, fire rated UL94V-O ; Secondary Attachment Point Included
Screw-down terminals, touch-proof, UL, CE and VDE rated, outside of backcan
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 Micro
  • 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

Documents & Downloads

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