How to upgrade "power cord" on turntable with wall wart?

Waste of time. Buy more music. 

A whole bunch of people have made the comparisons and consistently reported that power cables do indeed sound different. You claim the right to say they are nuts. Why? Please explain.

Well, i think i already explained why i think power cable for turntable is the last thing to worry about. In my opinion this is just a last meter of the conventional dirt cheap power cable connected to our wall outlet.

If your power cables connected to pure source of clean energy (or power conditioner) than from this device to your equipment it is important i can accept it. In this scenario the length of the conventional power cable is irrelevant, because the there is a power conditioner at the end, this device is a starting point for better cable to out equipment.

As i said i have some very nice power cables, but i don’t have power conditioners or some other source of pure energy. So i think even for the phono stage or amp those expensive cables make a tiny difference. It is worth to have them if in the future there will be some special device between my wall outlet and my equipment.

This is my opinion.

Interconnect cables or speaker cables can make a huge difference in sound, but they are connecting directly two devices and there is music goes through these cables. It’s another story.

According to your logic applied to power cables i could upgrade conventional 1m length interconnect by soldering 5cm of exotic cable directly to it on one end, right ? This is what you do when you add 1m audiophile power cable to wall outlet with about 20-100m conventional power cable goes from the outlet somewhere out of your house.

Snake oil !

P.S. Build your own  hydroelectric power station for better result. 

chakster
Interconnect cables or speaker cables can make a huge difference in sound, but they are connecting directly two devices and there is music goes through these cables. It’s another story. 

>>>>Well, technically, music doesn’t go through any of those cables. There is no music signal until the speakers generate one. What goes through interconnects and speaker cables is actually the same thing that goes through power cords - alternating voltage and current.

I'm with Lewn......I tried a number of different power cords on my turntable and none made any difference at all from each other or stock.   The change in wall wart may make a difference....mine plugs into the wall.

Changing out an el cheapo wall wart for a decent LPS could certainly help, my ears tell me it made a difference on two phono stages I owned. 
That then begs the question as to whether then changing out the LPS power cord to a much better aftermarket one would yield a further improvement.

Not something I have tried but surely in theory it should have some effect?

I no longer have any gear using wall warts or even a LPS to test the idea out on but I am sure some members here must?