The JBL-LCT 81C/TM metric lay-in ceiling tile speaker
USA - Harman Professional Solutions has introduced the JBL-LCT 81C/TM metric lay-in ceiling tile speaker and the JBL-MTC-CSTeth1 retrofit safety tether for JBL Control 10, 20 and 40 Series ceiling speakers with press-in grilles.
The LCT 81C/TM delivers high output intelligibility for classrooms, offices, paging systems, airports, retail stores and any place where speech and music clarity are critical. This low-profile speaker features an efficient 200 mm dual-cone driver with 1-inch voice coil and high-performance transformer. Its wide 100-degree conical dispersion pattern translates to broader coverage with fewer speakers, and its high 96 dB sensitivity means loud and clear sound even at low tap settings.
Installation is quick and easy: Simply remove a standard 600mm x 600mm ceiling tile and lay the speaker in its place. With a shallow depth of just 103 mm (4.1 inches), the JBL-LCT 81C/TM can be installed where deeper loudspeakers can’t fit—even in ceiling spaces with HVAC ducts, plumbing and other obstructions. Because the speaker looks like a ceiling vent, it’s ideal for venues where the architect or visual designer doesn’t want the appearance of a ceiling speaker. Use the JBL-LCT 81C/TM on either a 70V or 100V distributed speaker line or at low impedance, for maximum versatility.
“Most in-ceiling speakers require a highly skilled installer to measure and cut precise speaker holes into ceiling tiles, which is a messy, expensive, time-consuming process,” said Rick Kamlet, Harman/JBL senior manager, installed loudspeakers. “The JBL-LCT 81C/TM drops right into standard metric ceiling grids, for fast, neat installation that doesn’t require cuts or modifications to the ceiling and doesn’t contaminate the client’s space.
“These speakers really check all the boxes: They’re efficient and affordable, sound great, and can be installed in minutes. And now, with a metric version, anyone in the world can take advantage of their clarity and versatility.”
The JBL-LCT 81C/TM is UL1480 and UL2043 certified, allowing use in ceiling plenum spaces where certifications are required. Two safety seismic attachment tabs are provided for securing to a ceiling deck.
JBL Professional has also introduced the JBL-MTC-CSTeth1 retrofit safety tether for JBL Control 10, 20 and 40 Series ceiling speakers with press-in grilles. This safety tether is constructed from strong, highly flame-resistant aramid fibre cord and is virtually invisible and acoustically transparent.

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