JBL Professional LCT 81C/TM Low-Profile Lay-In 600 x 600mm Metric Ceiling Tile Loudspeaker, Pair
JBL-LCT 81C/TM is a full-range ceiling speaker designed to lay into a 600 mm x 600 mm metric suspended grid ceiling, with no cutting of ceiling tiles required, making for an easy and cost-effective installation with a minimum of mess. The low profile depth of only 103 mm (4.1 in) allows the speaker to fit in locations where deeper loudspeakers do not.
This loudspeaker is designed to provide excellent performance for voice reinforcement and light-to-medium music in a wide variety of applications, including education classrooms, business music systems, retail stores, music/paging systems, airports, reception/waiting rooms, lounges, courtrooms, meeting rooms, and more.
The very high sensitivity of 96 dB provides maximum sound level, even at low tap settings. JBL-LCT 81C/TM includes a 200 mm (8 in) dual-cone driver with a very high 96 dB sensitivity. The driver features a 25 mm (1 in) diameter voice coil with a Kapton coil-former and high-temperature wire for better power dissipation and long-term reliability. The speaker’s built-in 10 Watt transformer provides versatility by allowing use on 100V or 70V distributed loudspeaker lines, as well as at 8 ohms (low impedance) for driving directly from a low impedance power amplifier. Adjusting is convenient via a rotary switch on the side of the rear enclosure. Two safety seismic attachment tabs are provided for securing to ceiling deck, plus 4 holes are provided — one in each corner. The color of the perforated grille is white.
Not for US-size 2’ x 2’ ceiling systems. Use model LCT 81C/T for US 2’ x 2’ ceilings.
Key Features
- High efficiency 200 mm (8 in) dual-cone driver.
- Easy lay-in installation into 600 mm x 600 mm metric suspended grid ceilings. No cutting of ceiling tiles is necessary.
- Perforated metal grille included.
- Combined 70V/100V and low impedance direct operation.
- 20 Watts at 8 Ohm (low-impedance) direct setting.
- 10 Watt multi-tap at 70V/100V with taps at 10W, 5W, 2.5W (and 1.3W for 70V only)
- Very low-profile at just 103 mm (4.1 in) deep, to fit into ceilings that are shallow or that contain obstructions.
- Easy bare-wire connection in protected compartment. Wire entrance from either top or side via knock-out.
- Very high 96 dB sensitivity turns power from small amplifiers into maximum sound level for listeners.
- Designed for high speech intelligibility.
- 100° coverage pattern (conical).
- UL1480A and UL2043 certifications for use in ceiling plenum spaces.
Technical Specifications
Drivers
High-efficiency 200 mm (8 inch) dual-cone driver with 25 mm (1 in) diameter voice coil, Kapton coil former, and high-temperature voice coil wire.
Frequency Range (-10dB)
100 Hz – 16 kHz
Sensitivity
96 dB (2 kHz – 6 kHz)
Coverage Angle
100° conical (1 kHz – 4 kHz)
Maximum SPL (1m)
108 dB (low-impedance, 116 dB peak) 106 dB (top 70V/100V tap)
Impedance
8 ohms (in direct/thru setting)
Transformer Taps
10 W, 5 W, 2.5 W (plus 1.3 W @ 70V)
Recommended Protective High-Pass
90 Hz high-pass (24 dB/oct) for 8 Ohm direct or any 70V or 100V tap setting
Power Capacity (at low-Z)
40 Watts Continuous Program Power 20 Watts Continuous Pink Noise
Input Connectors
Bare wire inside protected in touch-proof wiring compartment.
Tap Selector
Rotary switch accessible from side of backcan
Materials
Steel rear enclosure, front baffle, and perforated grille
Grille Color
White
Safety Agency
Suitable for use in air handling spaces certified per UL1480A, Speakers for Commercial and Professional Use; UL2043, Standard for Fire Test for Heat and Visible Smoke Release for Discrete Products Installed in Air-Handling Spaces; NFPA90 & NFPA70; S7232/UL Listed, Signaling Speaker.
Dimensions
595 x 595 x 103 mm (23.4 x 23.4 x 4.1 in)
Net Weight
6.9 kg (15.2 lbs) each
Shipping Weight
15.5 kg (34.2 lbs) per pair-pack
Ceiling Cutout Size
No cutout required. Speaker drops into ceiling grid
Suspension / Safety-Seismic Attachment Points
Two tabs on back baffle, plus 4 holes in corners
Color
White
Backcan
formed steel (blind-mount)
Baffle/Rim
Metal
Plenum Usage
Yes, backcan included
