4 ohm impedance lci speakers. This receiver rates at 8 and 6ohm respectively. I have read that a 6ohm can effectively drive them, is this true. I don't plan on cranking it hard core and need it for movie theater the most. I was looking into a svs sub with the 25-31 pci 320 watt rms bash amp or should i go with the 25-31cs plus at 500 watts rms 4 ohm load but then wouldn't i need a separate amp.