In reply to:

I imagine he's co-locating them, 2 on each sidewall to match what he had before. Or possibly maybe the midpoint of all 4 walls, wasn't this the ideal for 4 subs according to the Harman paper?



I may also do that - after lugging the 600's and the Ultra's around - playing with the 500's will seem pretty easy.

We also have two 15 foot, a 25 and a 35 foot sections of the Balanced cables from Axiom. With the Daisy Chain ability, that will help with placement.