I basically have the same type of room in my basement-14' x 25'.
the support column is right behind my head, and this gives me 12' from the front wall. I could sit further away and have more "breathing room" for the speakers if I went further back, but then the column would be in front of me - I don't think acoustically the sound would suffer much, but psychologically- "looking" at the column would screw me up (unless I deemed the lights really low) hey there's an idea - listen in the dark 😁
the support column is right behind my head, and this gives me 12' from the front wall. I could sit further away and have more "breathing room" for the speakers if I went further back, but then the column would be in front of me - I don't think acoustically the sound would suffer much, but psychologically- "looking" at the column would screw me up (unless I deemed the lights really low) hey there's an idea - listen in the dark 😁