Recently purchased an Energy ES-12 sub to go along with my Energy Connoisseur 5 fronts and matching center. They are being driven with a Denon AVR 2105. My front speakers are set to small and crossovers are set to 80. My living room is about 18' long opening up into a dining area. The room is about 15' wide. The speaker set-up is classic home theatre style. The front speakers are about 12' apart with the sub about 5' from the front right speaker next to the TV. I'm new to this type of set-up so I'm not quite sure what to listen for when setting the levels for LP filter, EQ control and phase. Any insights are appreciated.