Well, I confused which power cable belongs to Lyr and which one belongs to Bifrost, because I forgot to detach the cables one by one when I was arranging my audio system table.
I know this is my mistake. I'm afraid that if I use wrong cable, it will affect their power usage.
So, there are 2 power cables,
1. Apollo AP-411A
2. KM77531
which one belongs to bifrost? which one belongs to lyr?