It's good that tweeter damping worked. Now you need to treat the room. Use absorbion on side wall 1st reflection points, behind seating position, use carpet or throw rugs.
Size of room, your distance from speakers, where are speakers located?
Changing cables now will have you running in circles, you'll eventually want to change them again.
Size of room, your distance from speakers, where are speakers located?
Changing cables now will have you running in circles, you'll eventually want to change them again.