- Description
Details
The JBL LCT 81 C/T is a full-range ceiling speaker designed to lay into a 2 ft x 2 ft US-style 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 4 in (100 mm) allows the speaker to fit in locations where deeper loudspeakers do not.
This loudspeaker is designed to provide excellent performance for paging 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. LCT 81C/T contains a 8 in (200 mm) dual-cone driver with a very high 96 dB sensitivity. The driver features a 1 in (25 mm) 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 metric 600 x 600 ceiling systems.
- Features
Features
- 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
- Specification
Frequency Range (-10 dB) 100 Hz – 16 kHz Power Capacity (at Low-Z) 40 Watts Continuous Program Power 20 Watts Continuous Pink Noise 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, 114 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) Full-Range Driver 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 Input Connection Bare wire inside protected in touch-proof wiring compartment 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 Fire Alarm and Signaling Systems; 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 Suspension / Safety-Seismic Attachment Points Two tabs on back baffle, plus 4 holes in corners Ceiling Cutout Size No cutout required – Speaker drops into ceiling grid (see installation drawing) Dimensions (H x W x L) 4.1" (103 mm) x 23.9" (607 mm) x 23.9" (607 mm) Net Weight 15.7 lbs (7.1 kg) Shipping Weight 18.3 lbs ea (8.3 kg ea) ; 36.4 lbs per pair-pack (16.5 kg per pair-pack) - Documents
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