Crossover is set at 80Hz. The room is 'sort-of' L-shaped. Sub is next to TV stand along one wall and recliner is along opposite wall. If the room were an upside-down L, the entrance of my apt. would be at the bottom of the long vertical line and listening area the short horizontal line. Does make any sense?
I made an MS Visio drawing but have to figure out some way to upload it or link to URL.
I moved the front speakers away from the wall some, changed sub amp's parametric EQ setting to High Q around 40Hz and -8db. It was set to lowest Q at 70Hz -6db. The new setting brought back the punch and smoothness. I don't have a spectrum analyzer right now and am going by ear alone. Also, since I mostly watch TV programming and the mix on each channel differs, that makes things even tougher to judge.
I can listen to 'Dark Side of the Moon' and get the system set where I think it is great. Then, when I change back to TV sound, one channel sounds boomy and another sounds thin. It would be nice if there were more consistency.
I used the room modes calculator found at
http://www.marktaw.com/recording/Aco...WaveCalcu.html
I agree with you about room mode problem.
THANKS
Peace:-)