Okay, if this refers to the "Ivan" post(where I later kidded you about using a Russian designer, i.e., "Ivan", but you didn't see the humor), it appears that Ian was just saying to use two EP 800s with two M80s, and wasn't specifically suggesting that the EP800s be given separate "stereo" signals.
If you connect one sub with each M60 using speaker wire to the high level inputs of the sub(from the main amplifier terminals), the M60s would have to run full-range with no crossover and the EP600s would receive the full range of all the signals sent to the M60s, but the sub's internal low-pass filter(presumably set very low, probably 40Hz)would limit its response. The receiver/processor setting would be, as you say, "No" sub so that everything went out the main L/R terminals.
Yes, the .1 channel in movies is entirely separate and it's usually intended to be sent to the sub, but if the sub is shown as "No", it has to instead be sent to the mains out the regular L/R outputs.
