JBL Professional MTC-81TB8 - Tile Bridge (Ceiling Plate) for Pre-Installed Backcan 8138/MTC-81BB8

JBL Professional MTC-81TB8 - Tile Bridge (Ceiling Plate) for Pre-Installed Backcan 8138/MTC-81BB8

The JBL Professional MTC-81TB8 is a tile bridge for suspended ceilings designed for installations with pre-installed back boxes in suspended ceilings. It is compatible with ceiling speakers that use a 286 mm mounting circle , such as the JBL 8138 , and with the MTC-81BB8 backcan . Constructed of 19 gauge (1.0 mm) steel with a corrosion-resistant black E-coat coating , it distributes the load of the assembly to the ceiling grid, preventing tile sagging and ensuring a stable and durable installation in commercial, educational and corporate environments.

Main features

• Direct Compatibility: For JBL 8138 (8”) speaker and MTC-81BB8 backcan ; 286mm mounting circle .
• Supporting structure: The bridge distributes the weight to the roof suspension system to prevent the slab from sagging .
• Heavy Duty Construction: 19 gauge (1.0mm) steel with black polymeric e-coat finish , high rust resistance.
• Ready to mount: 4 pass-through holes for fixing to the backcan and 4 clip-nuts for the speaker mounting screws.
• Fits standard ceilings: suitable for 600 mm (23.6”) and 610 mm (24”) grids.
• Optimized dimensions: 600 × 359 mm (L × W) for efficient load distribution.
• Weight: 0.9 kg per unit; easy handling on site.

Product benefits

• Safety and stability: reinforces the speaker + back box assembly, preventing deformations of the ceiling plate.
• Professional installation: Standardized mechanical interface with clip-nuts and holes that speed up assembly.
• Long life: E-coat coated steel to withstand demanding environments with low maintenance.
• Guaranteed compatibility: part of the JBL 8100 ecosystem, integrating with 8138 and MTC-81BB8.

Use cases

• Offices, classrooms, meeting rooms and educational centers with modular false ceilings.
• Retail, supermarkets and shopping centers with embedded BGM/PA systems.
• Hotels, hospitals and public buildings that require reliable installation and clean aesthetics.

Frequently Asked Questions

• Are the hardware included? The bridge includes clip-nuts for the speaker screws. The speaker mounting screws ( M4 × 40 mm ) are supplied with the 8138, and the bridge-backcan mounting screws ( M4 × 12 mm ) are supplied with the MTC-81BB8.
• Does it fit all ceiling tiles? Yes, it fits standard 600 mm and 610 mm grids.
• What other models does it work with? It's designed for the JBL 8138 + MTC-81BB8 ecosystem (286 mm mounting circle). Check compatibility if using with other third-party speakers with the same mounting circle.

Description for projects

JBL MTC-81TB8 tile bridge for suspended ceiling; compatible with 8138 speaker ( 286 mm circle) and MTC-81BB8 backcan ; material: 19 gauge steel (1.0 mm) with black e-coat finish ; 4 pass-through holes for fixing to backcan and 4 clip-nuts for speaker screws; dimensions: 600 × 359 mm (L × W); compatible with 600 mm and 610 mm grilles; net weight: 0.9 kg .