Description
The JBL LCT 81C/T is a professional low-profile lay-in ceiling loudspeaker designed for easy installation in standard 2 ft x 2 ft suspended grid ceilings without requiring any tile cutting. Featuring a high-efficiency 8-inch dual-cone driver, 70V/100V transformer taps, and 8Ω direct operation, it delivers clear speech reproduction and high-quality background music performance. Its shallow 103 mm depth allows installation in ceiling spaces with limited clearance, making it ideal for classrooms, offices, retail stores, airports, meeting rooms, lounges, reception areas, and public address systems. With high sensitivity, wide coverage, and UL-certified plenum-rated construction, the LCT 81C/T provides reliable performance for a wide range of commercial audio applications.
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Key Features
- High-efficiency 200 mm (8-inch) dual-cone driver
- Easy lay-in installation for 2 ft x 2 ft suspended grid ceilings
- No ceiling tile cutting required
- Perforated metal grille included
- Combined 70V, 100V, and 8Ω low-impedance operation
- 20W direct low-impedance power handling
- 10W multi-tap transformer with multiple tap selections
- Transformer taps: 10W, 5W, 2.5W, and 1.3W (70V)
- Ultra-low profile design with only 103 mm (4.1 in) depth
- Wide 100° conical coverage pattern
- High 96 dB sensitivity for maximum output
- Optimized for excellent speech intelligibility
- Side-access rotary tap selector
- Protected bare-wire wiring compartment
- Top and side cable-entry knockouts
- Two seismic safety tabs and four corner attachment points
- UL1480A and UL2043 certified for plenum ceiling installations
Technical Specifications
- Driver: 200 mm (8 in) High-Efficiency Dual-Cone Driver
- Voice Coil: 25 mm (1 in) Diameter with Kapton Former
- Frequency Range (-10 dB): 100 Hz – 16 kHz
- Sensitivity: 96 dB (2 kHz – 6 kHz)
- Coverage Angle: 100° Conical
- Maximum SPL:
- 108 dB Continuous (8Ω Direct)
- 116 dB Peak
- 106 dB (Top 70V/100V Tap)
- Impedance: 8Ω Direct Setting
- Transformer Taps:
- 100V: 10W, 5W, 2.5W
- 70V: 10W, 5W, 2.5W, 1.3W
- Recommended High-Pass Filter: 90 Hz, 24 dB/Octave
- Power Capacity:
- 40W Continuous Program
- 20W Continuous Pink Noise
- Input Connectors: Bare Wire
