Hi Rod, Space, et al... A few weeks ago, I was hired to do a remote for a band - actually, to mic up drums and get tones and levels on location. This band had made arrangements with a local nightclub to use their room during the day when the club was empty. Over the dance floor, there is a large domed ceiling. The circumference of the dome was 44'. The height of the ceiling was 12', However, the apex of the dome was 15' . (I didn't measure these heights myself, as no ladder was available, but the club owner happened to be there, I asked if he knew the heights off-hand, and he did.) The material of the dome was mirrored. I could not determine what the material behind the mirrored surface was. I can't even be exact enough to tell you the actual mirror material, it did not appear to be true glass to me, but more of a polished mylar covering of sorts. The dance floor was solid, no empty space underneath, material was wood planking, finished. Throughout the club are various materials, such as glass, brass, wood, metal, etc. The room itself is circular, but there are areas with corners and nooks for various VIP areas, bars, etc. In short, I ended up getting a very nice overhead drum sound, using a pair of 414 EB's in an XY array. The sound was full, highs were silky, and there wasn't any apparent tonal weirdness occurring. I did not 'mic the dome", as no ladder was available to get me high enough, and truthfully, I'm not sure I would have done so anyway. The client was very happy, especially the drummer. I was wondering if one of you guys could explain to me the acoustics theory behind this - if the dome was a factor - or not. Also, your thoughts on might have resulted had I been able to mic the dome? Just curious... d.