What can I say, Rich? Sure I have all these passive v4 here and I've enjoyed them...until now. I will say this. I still have not heard imaging like the M5s image in my main room. Their imaging in that room is quite uncanny really. Perhaps though when I take the A-LFRs downstairs, they will be even better in that department.

One thing I do know is I want active M5s in the living room with dual 500s. The LFRs are too damned big for that room even though they sound fantastic. Once you've heard actives, there's no going back to passives.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated