Most Beneficial Cable Upgrade


All things being equal, which cable upgrade would have the greatest sonic impact/improvement on a high end audio (stereo) system?
1)Power cables
2)Speaker cables
3)Interconnects
I have heard that power cables have the greatest benefit due to their ability to reduce RFI (radio frequency interference).
Does anyone know the answer to this question?
matjet
Some things I did not mention in my previous post.

IMO what I said above can apply to interconnects and speaker cables also.

AC treatment and proper grounding are very important.

Be practicle, treat one problem at a time and try to keep an open mind, remember your budget.

If and when you do try cables try to find something in the middle of a manufacturers line up. That is usually where the best bang for the buck can be found. (trickle-down).

Lastly, be careful. If you do find that you can detect differences between cables and components and things start to sound better, clearer, more musical, more like the real thing... then you are screwed! The Merry-go-round will have just begun and your conversion to the dark side is just one upgrade away:>) Good Luck with your journey!!!!
There is a lot of subjectivity here. But one cable that is extremely important and must be taken care of is the interconnect from source to preamp. It is true for every system.

However in my system it is the power cord to the source that does the most.
In my experience the most important have been the interconnect from the source, speaker cable, and the power cord to the source.
In my system, it seems as though the preamp to amp interconnect makes a big difference.
at the very least step up the quality on every cable first.

I would recommend something like VH DIY PC and Morrow or Signal or Blue Jean ICs and speaker wire.

In other words do not get ICs and speaker wire but ignore the PCs, there is too much to be gained from good PCs.

There is a big step up with the initial move up from stock cables in every location.

fwiw in case you have not considered this...