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JBL Commercial Products


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.


HARMAN Professional Solutions:
  • 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
Material 19 gauge steel, finished in black polymer e-coating for a high level of rust resistance
Attachment Points 4 clip-nuts fit 4 mm tapping screws attaching speaker to tile bridge
Dimensions 23.6" (600 mm) length x 14.0" (359 mm) width
Net Weight 2.0 lbs (0.9 kg)