JBL LCT 81C/T Low-Profile Lay-In 2' x 2' Ceiling Tile Speaker

Vendor: JBL
Description JBL LCT 81C/T Low-Profile Lay-In 2' x 2' Ceiling Tile Speaker w 8" driver "Lay-in Ceiling Tile Speaker, 8"" driver,combined 70V/100V and low impedance direct operation, 20W at 8Ω, 10W multi-tap transformer with...
$104.00 $130.00

JBL LCT 81C/T Low-Profile Lay-In 2' x 2' Ceiling Tile Speaker w 8" driver "Lay-in Ceiling Tile Speaker, 8"" driver,combined 70V/100V and low impedance direct operation, 20W at 8Ω, 10W multi-tap transformer with taps at 10W, 5W, 2.5W Sold as each; packed in pairs."

Low-Profile Lay-In 2' x 2' Ceiling Tile Loudspeaker with 200 mm (8 in) Driver

The JBL LCT 81C/T is a full-range ceiling speaker designed professionally to lay into a 2 ft x 2 ft US-style suspended grid ceiling, without the need of cutting the ceilings, making it for a cost-effective and easy installation with a lesses or minimum of mess. The low profile depth of only 100 mm (4 in) is allowing the speaker to fit in locations where deeper loudspeakers do not.

This JBL LCT 81C/T loudspeaker is designed for providing excellent performance for light-to-medium music and paging in a wide variety of applications, it includes like business music systems, education classrooms, airports, retail stores, music/paging systems, reception/waiting rooms, meeting rooms, lounges, courtrooms, and more.

Even at low tap settings, the very high sensitivity of 96 dB is providing maximum sound level. JBL LCT 81C/T is containing 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 high-temperature wire and a Kapton coil-former for long-term reliability and better power dissipation. The speaker's built-in 10 Watt transformer is providing 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. By the use of a rotary switch on the side of the rear enclosure, the adjusting is made much more convenient.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 metric 600 x 600 ceiling systems.


  • High efficiency 200 mm (8 in) dual-cone driver.
  • Easy lay-in installation into 2' x 2' US-style 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 8Ω (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.
Transducer 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
(-10 dB)
100 Hz – 16 kHz
Nominal Sensitivity 96 dB
Nominal Coverage Angle 100° conical coverage (ave. 1 kHz - 4 kHz)
Rated Maximum SPL 108 dB @ 1 m (3.3 ft) average, 108 dB peak (at 8Ω setting)
Nominal Impedance 8 ohms (in Direct/Thru 8Ω setting)
Transformer Taps 10 W, 5 W, 2.5 W @ 70V or 100V (plus 1.3 W @ 70V only)
Recommended Protective
High Pass
90 Hz high-pass (24 dB/oct) for 8Ω direct or any 70V or 100V tap setting
Power Capacity
(at low-Z)
40 Watts Continuous Program Power
20 Watts Continuous Pink Noise
Input Connector 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 607 x 607 x 103 mm (23.9 x 23.9 x 4.1 in)
Net Weight 7.1 kg (15.7 lbs)
Shipping Weight 8.3kg ea; 16.5 kg per pair-pack (18.3 lbs ea; 36.4 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