Extron Electronics FF 220T User Guide - Manual (Page 14)

For installations in a rectangular ceiling grid, replace half of the rectangular tile which
was cut in half in step
2 . Install the supplied T‑rail crosspiece, then place the speaker on
the grid and position it so that the speaker edges are hidden by the support rails and
T‑rails, as shown below.
Existing
Ceiling Tile
Rails
T-rail
Crosspiece
(supplied)
Ceiling Tile
Extron
FF 220T
Ceiling
Speakers
Figure 13. Installation in a Rectangular Ceiling Grid
FF 220T User Guide • Installation 10