Power Cord for Accuphase Amplifier

To anyone:

First of all, can anyone tell how the good power cable is better than not-so-good cable, in terms of scientific description? (rather than "feeling better, ...", "just really better")

If you are not old (younger than 50 years old), then you can tell some subtle sonic differences changing some gears including cables. But, BUT, if you old or older than 50, most of you cannot hear very subtle changes because your hearing sense have become weakened by the nature of living creature!

Please, do not try to think that "this expensive one should improve my system, because it is expensive, I don't know the mechanism, but they must make well."

Many people say "only trust your ear". Both true and not true. Anyway I do not waste my money for the any company who sells unnecessarily expensive stuff. 

Unnecessarily expensive stuff? One example = power cable of $100 or higher price.

@r27…

I’m old. I can’t hear what you’re saying. Sorry but I’m weakened by the nature of living creature!

@r27y8u92

If you have a decent system you are missing out on what a power cable may do for you. I spent a small amount about $300 per cable for my DAC and Streamer. The change or should I say improvement was Not subtle. Soundstage on my Streamer was clearly much better. Depth of image improved. The DAC offered more refinement in the high frequencies and in general these cables eliminated the power issues I was having that were probably due to noise. Swapping better quality 10 gauge cables for the thin stock did the trick. Try it you might be surprised. 

I use Shunyata. Always been happy with them

Under 500 on a 10-20k amp?

you won’t hear anything better until it warms up for 3 hours.

you need to spend 2.5-3k to make any significant difference on an amp like yours.