Help What's Wrong with my System


I have moved from a room 15.5X25 to a 17X42+ room, the only thing that has changed was a different pair of Hales T 8's( had a pair before).
Things are so bad I can't listen, have tried long wall, short wall, and different placement to no avail, any suggestions would certainly help
System
Levinson 332 Amp
Sonic Fronties Line 3 SE
Theta Pro Gen Va, and transport
Ensemble cable, FIM power cords
Thanks
128x128abruce

Have you tried sitting near-field. I find sitting near field in a large room can have good results. You get very clean bass that way. You may need to treat the wall behind you though....
If possible you could turn the room into two rooms by building a wall. The good thing about this is you can make it any length you want. If you want to go crazy you could even change the width and make it so it has ideal dimensions. Check out this site for more info on this. http://www.decware.com/paper36.htm
Nice gear. Nice auditorium. Hales T8's are one of my favourites but I've never heard them in a room that size. Consider line arrays.
Could this be a case of wiring nasties? Check to see what kind of wire the house is wired with, and what appliances share the circuit you're using. You may have a great "excuse" to buy yourself some high quality dedicateds ;)
I've tried sitting near field, it does help, the wiring is all new this is in a walkout basement, nothing sharing the circuit the system is on
Thanks Again