I have a new PC and want to protect it from power fluctuating issues or spikes... My PSU is Seasonic 650W Focus Plus Gold... They say it is a good PSU. My question is "Do I need an AVR?" If so, how many watts ang kinahanglan ba with servo motor? When I went to SM, a sales person said that Akari AVR 1000w with servo is good since it uses 100% copper unlike the others.... price at 3,399.00