I am receiving a new Sony DA3ES receiver from JandR. In the future I want to use an old Proton D540 in bridged mode to drive an SVS subwoofer. I want this external amp to turn on when I power up my receiver. I need a surge protector so I thought I would plan for the future. I've look around and the cheapest thing I can find with remote power switching or delayed turn for amps is the Monster Cable HTS2500 which is close to $200. What are the other options?