Hey @ozzy62 Thanks for being the only person who missed me. :) I have learned with discussions like this that they come to more satisfying endings if A'goners contribute and have their say instead of me trying to reply to every post.
@hilde45 - Thanks for your eloquent synopsis of my work regarding subwoofers and music lovers. It's true, in my mind, that getting a subwoofer is like getting a dog. There's a lot to consider about it's food, mental happiness, exercise, etc. before committing to one, and yet dogs are wonderful. Same for subs.
I have updated my posting with information about the room, and also the statement that frankly my results were surprising and not typical.