I have the Polk RM6000 Surround speakers. The manual says to connect the sub to the Front speaker jacks on the receiver and set the front speakers to "Large". Then run the front speaker wires out of the Sub to the front speakers. The reason is that the Sub has its own build in "Low Pass Filter" and Polk says that the Sub will take care of splitting up the signal to the front speakers and the sub. They say not to set it up the normal way because then both the receiver and the Sub will each be running the signal through a "Low Pass Filter" and this could result in signal loss. I know the 5.1 encoding has 6 different channels. Based on this, it sounds like I will be getting "Dolby Digital 4.1" with the Polk "Low Pass Filter" deciding what signals to send to the sub and which ones not to. My question is: Will this configuration cause my system to not be able to play 5.1 encoded media properly? Hopefully I am wrong and this isn't a big deal, but I would love to hear from someone with more knowledge about these things that could clear things up for me. I already sent the question to Polkaudio.com, if they reply with anything useful I will post it here. Thanks.