I'm 8 feet away from the M80s and the VP150. I don't bother giving out the details anymore because I'm sounding like a broken record. See the room below...4,000 cubic feet and an opening to the upstairs too. I'm sure regulars here are getting sick of these pictures as well.

We have to be careful that we don't only look at room volume but also at how live or dead the room is. I saw one A/V room on The Wall of Fame that had acoustic panels over every square inch including cushy floors. That person needs more power because there are no reflections to speak of. And of course we have to take listeners' hearing into account.