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
Here is great info on the topic. google>

Roger Russell

Speaker Wire "A History"
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Elizabeth,
You seem to be very angry and agitated. No one is critcizing you. No one is attacking wires. This happens to be a controversial and interesting topic. I intend to do my own power cable evaluation within the next couple of weeks. I may or may not notice a difference. If I feel they help improve the sound of my system, of course I will buy them. I don't know what you mean by trolling. I am just trying to share some of my thoughts with other high end audio enthusiasts and wondering how they feel about these issues. If I was absolutely certain about any of these topics, I wouldn't waste my time discussing them here and I wouldn't bother with auditioning high end power cables. Your opinion is loud and clear, and I appreciate that.
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Every now and then the placebo effect pops up and is used to decry and denounce any perceived improvement in whatever it is one is trying out. But what of the double blind test and the effect it has on one's reputation which is now the focus of the tester? That is a lot of pressure to overcome and can certainly cloud perception and judgement. To say it doesn't exist is nonsense.

Having said that, a really good power cord is probably the best and first thing to try. I recently went the whole Zu route and the biggest improvement came with the insertion of the PC. And I wasn't even looking for that much improvement. The PC came with a 60 day return policy with postage paid so there was no need to justify its purchase.