Which PSA power cable are you using? Usually 12 gauge is sufficient for a component like your Rogue preamp.
You may not be experiencing a placebo effect due to the fact that an aftermarket PC such as PS Audio will have a sonic signature just like each manufacturer’s interconnects or speaker cables. Compared to a cheap stock PC, you probably will hear a difference.
A well designed PC will use a high quality conductor, shielding, etc. and lower the noise floor. However, since you are using a PSA receptacle and a power conditioner, it’s hard to say how much your cable is contributing to the overall sonics.
Part of upgrading your power conditioning should include the installation of a dedicated AC line to the circuit box.
You may not be experiencing a placebo effect due to the fact that an aftermarket PC such as PS Audio will have a sonic signature just like each manufacturer’s interconnects or speaker cables. Compared to a cheap stock PC, you probably will hear a difference.
A well designed PC will use a high quality conductor, shielding, etc. and lower the noise floor. However, since you are using a PSA receptacle and a power conditioner, it’s hard to say how much your cable is contributing to the overall sonics.
Part of upgrading your power conditioning should include the installation of a dedicated AC line to the circuit box.