floorstanders on carpet over concrete

Try moving the speakers away from the back wall three inches at a time until the bass firms up. You may end up with them to far into the room so bass traps will be needed. When I ran my dedicated lines the most improvement was bass then detail. As stated above by moving breaker to other side can only effect eq. if the other appliance is running at the same time unless its a frig or something that is on all the time. The most important time to have breaker on same side is when multi dedicated lines are used, you want them on the same phase or leg of the sub panel. In my HT set up I run Paradigms and I find bass to be some what muddy, not as fast as I would like so that's where the sub comes into. I find these speakers need alot of room behind them. I think your best solution will be the bass traps! Another thing get rid of the crappy spikes that came with your speakers and pick some Michael Green Audio Points up as they worked for me. Good Luck Go to my system and scroll down to see my dedicated line project.

Try adding some more cushy furniture in the room. It's free and worth a try if you can move something down there easily.

One comment about my speakers placement- the basement is inverse L-shaped with the listening room occupying short part (17x21 ft.),which places the right speaker near the long wall, with the open space to the left of the left speaker. The distance from the short back wall is appr. 4ft., the distance b/w speakers is 8-9 ft., so is the distance from the listening position. If I'll decide to go the bass trap route, what would be your reccommendations for the traps placement.

I would try tube traps or echo busters. Go to there web sites as you can get great info for this. Room acoustics play a huge role in sound so you need to get educated about this. There are many types of room treatments that dont look half bad and will blend with room decor. I used Bass Busters, Echo Busters and Sonex Pyramids all improved my room by a bunch!
Happy Tunning!

have you stuffed the ports to dampen the bass a bit? try 1/4 thick foam rolled up to fit the diam. of the port or ports. try different lengths and or thicknesses. you never know, worked for me.