I have an opus180 psu, since having their unit Ive never been able to get the remote wire to work. The problem is the way their remote wire works is that the wire goes to - ground when the psu turns on, which I need a 12v signal to turn on the amps. Ive tired using relays and wiring it that way. It just doesnt seem to work. I like opus's psu, but this a knock I have against them.If you are paying almost $200 for a psu, it should be able to do this with out issues. are there any other psu that the remote wire really works?