Nice write up Mike, thanks for taking the time to do it.
I had just got done getting new carpet and rearranging the furniture. This created havoc on my frequency curve; I had one heck of a peak at around 80 Hz. The system just wasn't sounding as good as it had been. Before I was running the 80s crossed over At 60 Hz. I tried different positions and to no avail, so I remembering this post started playing with the crossover. I tried 40 and 60 but still had a terrible peak (+10db) at 80. When I tried the 80 Hz setting it pretty much got it within a couple of db, so that's where it is staying.
