I am in the process of setting up my home theater and have come upon a problem. I have a 5.1 system and the bipole surrounds will be mounted behind the listening position. However, the wall that is behind the position is approximately 10-12 feet away. There is no way to mount the bipoles on the side walls (window issues). The front and center speakers will be approximately 5-7 feet away. My question is this: Are the bipoles still going to be effective over such a great distance? The receiver supposedly can compensate for speaker distance, but will I be loosing a lot of sound with this configuration? These are wall-mounted bipoles and can not be placed on a stand behind the listening position.