I plan was to keep the ep500 in the front right corner, and put the ep350 in the back left corner. If I switched these two then I would have the 500 closer to me so that may be better.

However, the 500 would then be at the end of a 40 ft sub cable, while the 350 would be at the end of a 10 ft cable. Does that matter?

Also, I suppose I would want to put the phase at 180 for the speaker at the back and try that first right?

-David