Description
The JBL LCT 81C/TM Pair includes two full-range ceiling loudspeakers designed specifically for 600 mm x 600 mm metric suspended grid ceilings. Each speaker uses a high-efficiency 200 mm, 8-inch dual-cone driver with a 25 mm, 1-inch voice coil, Kapton coil former, and high-temperature voice coil wire. The lay-in design requires no cutting of ceiling tiles, helping simplify installation while minimizing mess and installation time.
Each LCT 81C/TM provides a 100 Hz to 16 kHz frequency range, 96 dB sensitivity, and 100° conical coverage for clear speech reinforcement and light-to-medium music applications. The speakers support both low-impedance direct operation and 70V or 100V distributed audio systems. A 10W multi-tap transformer provides 10W, 5W, and 2.5W settings, plus a 1.3W tap for 70V systems, while the rotary selector on the side of each backcan makes power selection convenient.
The pair features formed-steel rear enclosures, metal baffles, and white perforated metal grilles for a clean professional appearance. With a depth of only 4.1 inches, each speaker is suitable for shallow ceiling spaces or areas with installation obstructions. Two rear safety-seismic attachment tabs and four corner mounting holes provide additional securing options. UL1480A and UL2043 certifications support use in ceiling plenum spaces, making the pair suitable for classrooms, retail stores, offices, airports, meeting rooms, reception areas, paging systems, and other commercial installations.
Product Specifications:
Product Type: Metric Lay-In Ceiling Tile Loudspeaker Pair
Quantity: 2 Speakers
Application: Commercial and Professional Ceiling Audio
Ceiling Compatibility: 600 mm x 600 mm Metric Suspended Grid Ceiling
Driver: 200 mm, 8" High-Efficiency Dual-Cone Driver, Each
Voice Coil Diameter: 25 mm, 1"
Frequency Range (-10 dB): 100 Hz to 16 kHz
Sensitivity: 96 dB, 2 kHz to 6 kHz
Coverage Angle: 100° Conical
Maximum SPL: 108 dB at 1 m, Low-Impedance; 116 dB Peak
Maximum SPL, 70V/100V: 106 dB at 1 m
Impedance: 8 Ohms, Direct/Thru Setting
Low-Impedance Power: 20 Watts at 8 Ohms, Direct Setting
Power Capacity: 40 Watts Continuous Program, 20 Watts Continuous Pink Noise
Transformer Taps: 10W, 5W, 2.5W, 1.3W at 70V
Recommended Protective High-Pass: 90 Hz, 24 dB/Octave
Tap Selector: Rotary Switch
Tap Selector Location: Side of Rear Enclosure
Enclosure Material: Formed Steel
Baffle/Rim Material: Metal
Grille Material: Perforated Metal
Color: White
Backcan Type: Formed Steel, Blind-Mount
Safety-Seismic Attachment: Two Rear Tabs and Four Corner Holes, Each
Safety Standards: UL1480A and UL2043
Speech Intelligibility: Designed for High Speech Intelligibility
Primary Applications: Education, Classrooms, Business Music, Retail, Music/Paging, Airports, Reception Areas, Waiting Rooms, Lounges, Courtrooms, and Meeting Rooms
Financing Options
Hassle-Free Financing Available
Get the gear you need now and pay over time. Perfect for working DJs, artists, and sound pros who need pro-grade speakers, lighting, and cases to stay competitive.
- Shop Pay & Afterpay for instant financing right at checkout
- Acima, Synchrony, Progressive & Snap lease-to-own and financing options
- Fast approvals so you buy today and pay monthly
Military & First Responder Discounts
We're proud to support those who serve. Active-duty military, veterans, and first responders qualify for a special discount on your gear. See our Military Discount details here and how to redeem.



