Are you going to be playing music or DVD / home theater ? For music the EP125 is probably fine (seems to fill out the bass nicely) but for home theater / DVD in a big room I have to think the 125 is too small.

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