Good call on all components but I question the M100 and 180. Do you need the sensitivity, high SPL or low frequency performance of the M100 and 180? Do you have adequate space from your front wall to offer you depth of soundstage and not suffer from bloated bass (which might be tamed with port plugs at the sacrifice of some low frequency performance)? If not, consider the M5 for the front and 160. Craig Chase has said the M5, paired with an EP800, bests most $10,000 speakers. I would say that would also apply to an EP500v4 or 600v4 provided you're willing to sacrifice some SPL and low output. I have the 800 and 160 and have nothing but good things to say about them. I can't say the same for the 600v2 and 150v2. BTW, I get a clean 35Hz on my 160v4 and have it crossed over at 40Hz.
