To DJ Vintage My wego does use RCA OUTLETS but the sub has an option of 1/4 TSR or XLR cables. I chose to use xlr cables with 2 Rca to xlr adaptors. The Satellites use 2 speakon to male xlr cables.
As for power everything goes through my power conditioner which is hooked to the wall socket.
I hope this gives you a clearer picture.