Pre-Install In-Ceiling Tile Bridge for Pre-Install Backbox

Pre-Install In-Ceiling Tile Bridge for Pre-Install Backbox

The MTC-81TB8 tile bridge is designed for use in applications requiring pre-installed backcans in suspended ceiling applications and is compatible with ceiling speakers having a 286 mm (11.25 in) mounting circle diameter, such as the JBL 8138 ceiling loudspeaker, and the JBL MTC-81BB8 pre-install backbox.


·       Fits 8138 speaker and MTC-81BB8 backbox

·       Load-bearing bridge eliminates ceiling tile sag by distributing weight to the ceiling’s support system

·       Rust-resistant 19-Gauge (1 mm thick) steel construction and e-coated finish ensures long service life.

·       Fits 610 mm (24 in) and 600 mm (23.6 in) tile grids



19 gauge (1.0 mm thickness) steel, finished in black polymer e-coating for a high level of rust resistance.

Attachment Points

4 clip-nuts (ie, speed-clips, tinnerman clips) fit 4 mm tapping screws attaching speaker to tile bridge.


4 thru-holes on 286 mm (11.25 in) mounting circle for attaching tile bridge to backcan

Dimensions (L x D)

600 mm (23.6 in) length x 359 mm (14 in) width

Net Weight (ea)

0.9 kg (2.0 lbs)

Shipping Weight (ea)

1.3 kg (2.7 lbs)

Associated Models

8138 200 mm (8 in) ceiling speaker

MTC-81BB8 backbox 

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