I am planning my first home theater, probably using the Emp Tek R55TiR's for front L/R, an R56CiR center channel, R55WiR's for the surrounds, and probably an SVS PB-2000 sub. I was advised in another thread to consider using a third R55Ti as a center channel due to inferior off-axis performance for horizontally-arranged center channel speakers. Although I will consider using a 3rd tower as a center channel, I am interested in feedback from R56CiR owners concerning off-axis performance, and also sound performance through an acoustically transparent screen. Thanks in advance!