Got my 25-31PC+ today. All I can say is WOW!
With very little tweaking, this is the best bass I've ever heard, bar none! It easily fills my room (which is greater than 25-25 w/13' ceilings and open to hall/kitchen/etc. I was a little worried that I wouldn't be satisfied, but its more than enough for my taste in bass. I can actually feel the floor shaking. Not at all dissapointed. I just wish I could listen and tweak it for the next few days, but I'm going out of town to the Big Easy for Jazz Fest. Guess it will wait until next week.