[srckkmack]

Sonnie,
Thanks and glad to be here. I checked out REW and it looks extremely useful (and cool!). Last year I bought a RS SPL meter, but then didn't use it so I returned it. Looks like I'll buy one again, but likely the digital one this time.

Otto,
Flat to 10!!! Wooohooo! How often do you have to pound the nails back into the walls to hold up the drywall? Please don't mind my ignorance, but what's an IB? From my reading, it looks like I'll be investing in a RS meter and running the REW. Probably then get a BFD.

I have tried a few placements. This is our great room, so I'm somewhat limited in where to place it. My wife is pretty patient, but I don't think she'll go for the sub in a walkway or in front of the fireplace. Anyway, It used to be placed in the front right corner about 20 inches from both walls. Then I tried placing it further into the room away from the back wall but still about 20 inches away from the side wall. With this side wall placement I did not seem to get as much bass as with in the corner. Now I've got the sub back in the corner, but skewed a little so that the walls of the sub are not square with the room's walls (thought I read somewhere that this is good). These placements were done just by ear and memory, but I think having the meter will allow a better decision to be made.

Cross-over is at 80Hz, but I've set my fronts and rears currently to large. I actually just recently changed the speakers to large. I had them at small for over a year, but changed them to large after a recent auto-recalibration. I have Paradigm Studio 60's in front, 20's as surrounds, CC-470 center, Yamaha RX-V2400 receiver, and use the pre-outs to an Outlaw Audio 755 5x200W amp.

Getting back to my original question. I guess what do the frequencies below 25~30Hz do for you? Can you hear them? Do they just rattle the walls more? Or is it a "feel" thing?