When you set your sub (1 single) up in your LP, look for your 3-4 best placement options while doing the crawl. Mark them as you find them. For me, my preference is to not have them on the front wall, but asymmetriclly placed around the room. Just looking at you drawing, I kind of like the 6' wall tou thr Rt of the LP, possibly close to the bar. Near-Field behind the couch is a possibility. I also like the left side. Experiment with the corner, but my instinctual preference might be that wall opposite the fireplace, closer to the surround than your left wall.
When it comes to learning how to listen, make sure all your speakers are off, and I recomend starting near a corner, and moving in and out of it. You should hear the effect of "Corner Loading:" it will get louder as you get closer to the corner. The big question is does it get boomy or muddy? Regardless, as you get used to the sound changes, you'll be able to crawl around, with your ear "near where the woofer would be" and get a sense of what works well and what doesn't.
I might have spent close to an hour just learning what to listen to. Hopefully my experience can help shorten that time for you.
I tried, test tones, rhythmic test tones, pink noise, and music. I found music worked best for me. I used the Gorillaz album,
Laika Come Home, but another strong recommendation is Daft Punk Get Lucky.
****was literally gonna hit send yesterday when some fool crashed into a telephone pole... took out electricity until around 4 am!
Anyway... here it is, better late than never!
