I currently own a Yamaha 6190, and Energy RC-70 speakers for the fronts and matching Energy speakers for the center and rear. How much more money would it cost to run my setup with the Emotiva amp? I average 4 hours a day, and more on weekendsHow much extra will I be spending a month on power because of the Emotiva? My wifes already pissed about the hydro as it is. I believe the Emotiva is 200 watt into 5 channels. Thanks guys.