soffit in listening room

my listening room is 14' x 20' with 10' ceiling.  halfway is a 15" x 15" soffit and then columns on both sides of the soffit, same size.  speakers are 3 ft from front wall, listening is on a couch about 3 ft from back wall. should I treat the soffit with acoustic panels in front or back or not?  the listening area is open to a hallway that extends beyond the 20' and has open walkways to kitchen and living room which is an open floor plan. I do have 2'x4'x2" Owens Corning 703 wall panels behind the speakers and 2 bass traps in the corners behind the speakers.  pretty great sound but sometimes experiencing a bit of "ringing"  on the high end. any ideas?