JBL Professional MTC-81TB8 - mounting kit - for speaker(s)

The MTC-81TB8 tile bridge is designed for use in applications requiring pre-installed back cans in suspended ceiling applications and is compatible with ceiling speakers having a 286 mm mounting circle diameter. The MTC-81TB8 is constructed with four thru-holes for attaching screws to back box and four holes with clip nuts for the speaker attachment screws.