Terzsaghi,
Your fine with your setting though you can probably improve it further. What receiver/processor/ other speakers are you using and how are they crossed?
The setting I was referring to is often called Large + Sub or something similar. I have been using a 2 year old Arcam processor with that setting which is described in my manual as, "Pure stereo is fed to left and right and extracted bass is sent to the sub woofer. In this case the low frequency information is, effectively, duplicated. "
That's bad. Avoid it if you have a similar setting since it creates problems with room nodes and phase between the speakers and sub unnecessarily.
