[header] How to install a ceiling speaker in a tile ceiling [title] Take the tile you wish to place the ceiling speaker in out of the ceiling. [title] Find the center of the tile and make a circle just big enough for the back of the speaker to fit. [step] ( keep in mind, some speakers have transformers which will require a larger hole. 
Warning: make sure your hole is not to big that the flange of the speaker grill will not cover your hole. [title] With a spiral saw (rotozip) or drywall saw cut out the circle you just made in the ceiling tile.