I've got my BDP 1 and BDA 2, Chapter Précis integrated (preamp out) into the Torus. The Chapter amp is in the wall. I found out the wiring is stranded copper from the transformer. Tinned at the end where it meets the connect from stranded into solid wire used to power the out lets. The outlets wire is easily changed out into solid copper which I've done. But that wire is more nickel than copper. 12 gauge garbage IMO. Unbelievable they would use that on a $4k unit. Or what ever they want for that now. I am assuming they are still using it since Torus never got back to me.