@donavabdear you are welcome.
I’m no expert, but experiments showed me that even the quality of the pc connected to the linear DC power supply matter.
Why? I have no explanation other than cable material and structure shapes sound. Could be that cables are like bottles filled with water, they come in different shapes but the water in them is still water just delivered differently.
I experimented with using combinations of different occ/silver/ofc wire types to supply my power conditioner. This works almost like an equalizer. I enhance the sound character by changing the wire combination.
Why do you use expensive power cords if you don’t believe in them?
The thing is, you are not curious and don’t want to try and experiment.