Yes Jon you are correct. But, the reason the diagram shows a "left" surround in the right hand rear surround position (and vice versa) is to keep the drivers in both the surrounds, and the rear surrounds, facing the back corners, and along the back wall, in phase with each other. In order to achieve this with dipolar speakers, it is necessary to reverse the positioning of the rear surrounds.
Looking at the left surround in the diagram. Notice that the negative (-) driver of the left surround and the negative driver of the speaker in the left rear surround position are facing the same corner. Same thing on the right side of the room. And notice that the rear surrounds have their positive (+) drivers facing each other. Notice the phrases "same phase" with the arrows pointing to the speakers.
THIS IS ONLY DONE WITH DIPOLE SPEAKERS; speakers with the drivers wired OUT OF PHASE, and specifically designated as "right" or "left" surrounds. Axiom QS series speakers are wired IN PHASE, are NOT designated as specifically "right" or "left," and are thus the same as bipole speakers, NOT dipole speakers. So, this is unnecessary with Axion QS surround speakers.
