Its force over area so I would guess the tile wont compress much. The plywood will transfer all the speaker weight to the grid. If it was installed correctly (and it looks like it's great) it should support 25lbs no prob. No need to tie. We put troffer lights in weighing more and they are never an issue. I think the IC M3s are around 12lbs or so. Cant remember.
Yeah, the installer did a great job. The room is 10' wide so he did not need to splice anything. It's pretty solid. I'll play around with it more once the floors are installed. Thanks for the tips. Back to my main thread now...lol.
you guys are overthinking this, just run some deck screws in and call it a day.
Lol, I blame my OCD. I spend waaaaaay to much time on the details.
