I'm not sure, but I would angle them down if they are going to be that close. Axioms are pretty good off axis but if you get more than say 30 degrees off you are going to definitely lose some sound quality. Five feet up and a couple of feet away seems like at least 45 degrees...

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8