So I listen to 12' full range drivers, open baffles, with a supertweeter. Recently added a sub for last octave re enforcement. I must say I find it amusing when people comment that 8 or 10" drivers dont do well in the midrange. Perhaps some designs dont but there are a lot of respected opinions out there that full range drivers offer the best midrange quality rivaling planars. just my 2 cents. Fwiw, imo, theres no replacement for displacement as far as woofer size goes but 8 ' seems adequate for mid size spaces