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
Matjet: thanks for the kind words.Here is a price list of what usually goes into most very high priced esoteric power cords..I wish they really did work magic. But alas only in fairy tales.

1. 1 Schurter 10 amp IEC - $5
2. 1 Hubbell 15a 3 prong plug - $5
3. 6 feet of Black, Green and White 14g THHN 600v Building Wire - ~$0.30 /foot = $1.80
4. 6 feet of clear braided garden hose - ~$0.50/foot = $3
5. ~1 pound of ferrous metal powder - can't find a price, I'm sure it's dirt cheap
6. a stick of hot glue - the Hubbell connector had a hole drilled in it and was filled with hot glue, the female end was just glued to the hose.
7. Approx. 6 inches of electrical tape
8. Large size heatshrink
9. Techflex

now does this look like high end science to any of you...lol
If power cables do not make an audible difference, will it affect the sound if I cut mine in half? ;)

John
To All:

Let's use the power of Audiogon and conduct our own objective test right here.

I challenge you; try this very simple objective test. Set up an honest blind test with a friend (minimum of 10 repetitions, preferrably 20):

Compare stock power cable provided with the audio equipment VS high end power cable.
With each test write down the type of cable you believe was used and how it changed the sound.
Your helper will need to secretly write down the actual cable used for each test.

How often did you get it right?
I predict we get 50% correct +/- 10%. If I am correct it means we are guessing and influenced by placebo effect. If this is the case, power cable upgrade would be meaningless for the high end audio market (unless you are a retailor or manufacturer).
Matjet,

Based on your position regarding power cable affect on high end audio, it appears from your original post that you are trolling. Why ask the question if you already know the answer?

Good luck with your power cable test. I trust it will be a blind test as you have claimed to be the only valid comparison.

GSSelf
er,,,??? why does the bass sound quality improve with better ac cords? placebo effect? ha lol! i.ll stick with my better ac cords but i am a victim of hype and advertising. wow