Sanyo PLV-Z2 Electric Perf Screen

I just bought a Sanyo PLV-Z2 and I'm trying to find the best 45x80 electric screen (in ceiling) and I cannot find any advice. I already have the projector mounted on the ceiling and I know where the screen will go, but I need a screen that allows center channel music to go through it. I looked at the da-lite electrol but I'm just guessing at what the best screen would be. Any suggestions on the best screen surface and brand that will allow sound through it.


Thanks for any and all help.