Maybe I should start a new thread in another section of the forum... I tried placing the THT up front, sideways. Not good. The blue line is back-of-room placement (with EQ removed) and the green line is front-of-room (XO on receiver set to 200 Hz; main speakers unplugged).
Would room treatment fix the huge loss from 30 to 50 Hz? What kind?
I am about to (finally) put in my suspended ceiling, so I'll need to try this again when it's done. But the ceiling is already filled with 6 inches of Roxul so i don't expect much change.