Erm, just had a bit of a mare with my new cinema... I finally got all my kit into my new custom cinema at the end of my garden today There I was, all excited about finally getting the audio side going and finding out where my acoustic control panels were going to go. I fired up a few of the standard favourite scenes (CA2, Episode I, Lost in space etc) let the system warm up a bit before pushing it close to around ref level, when... **SMASH** In the middle of the space battle scene at the start of Lost in space, one of the windows shattered Now it's a serious setup (Quested sub and custom transmission lines all round) but I think I must have found the resonant frequency of either the window frame or glass. I checked the other window in the room after (at the same level) and the glass was moving around 1 cm!! When I built the place I was extremely careful to make it a sealed and controlled environment, now looks like I'm going to have to reinforce or brick up the windows.