I have my home theater in a 14x16x8 room. In the front third of the right wall is a door. I have been calibrating (XT32-Integra 80.2-+pro kit)) with the door open since it gets a bit hot with all the electronics. However I could increase the AC if it is much better to keep the door closed.
I just acquired a JL Fathom 112 and am coupling this with my previous Martin Logan Descent i. I have a Martin Logan LCR (Vantage, Cinema i, with NHT subs for surrounds (dipole) and ceiling NHTs for back surround).
The couch is ~3 feet from rear wall with TV out a foot from the front wall. Speakers are about 8-10' feet way from couch. Center speak is hung down from the ceiling about 2'
I can now get bass down to ~21 hz with the door open. I have not checked max sound levels but 85 db is easy for the system at the frequency.
My question is what are the pros/cons of the door open versus closed?