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Low ceiling
https://audioroundtable.com/forum/index.phpindex.php?t=rview&goto=83985&th=20875#msg_83985
Cortney2016-11-28T09:11:56-00:00Re: Low ceiling
https://audioroundtable.com/forum/index.phpindex.php?t=rview&goto=83988&th=20875#msg_83988
All room boundaries matter. The floor/ceiling mode is higher frequency than wall/wall because the distance is shorter, usually eight feet. The first vertical axial mode caused by an eight foot ceiling is 70Hz and the second one is 140Hz.