Why power cable effect overall syste sound?

Samuel,
Thank you a lot for answer. It was very well explained. The high frequency backward noise from digital source is well known issue. That's why for digital source is highly desirable to use shielded AC cord or some cable manufactures insert HF filter prior IEC socket to eliminate antenna effect. But I amaze to hear the impact on pure analog system without any clock source.

I too have experimented with power cables, and they all sound different...not only quieter or less quiet. I find that about 80% of the sound of cables comes from the terminations, not from the cable itself.

I have one of Samuel's cords and some of my own design. They all sound better to my ears than stock cords. Bummed to find out after careful AB tests that Samuel's more expensive cords sound even better with my gear than his company's less expensive cords.

I think Samuel's description of how cables work in relation to power supplies and digital noise in the AC circuits near your gear is pretty good. I also think that it is critical to make sure primary signals in low current ic's, speaker cables and even low power circuits inside your gear are effectively shielded from emf and rfi around the high current cables in the immediate neighborhood. In some ways, it doesn't so much matter what is going on with the many feet of unshielded cable in your walls as long as you are effectively dealing with radiation, interference and noise potentially present in the area directly behind your equipment. This is also why it is commonly suggested that you cross PCs with ic's and sc's at 90 degrees rather than running them in parallel, and never bundle low current and high current cables together.

>>>experiments for oneself--unless the point of discourse is only to make funny asides under strict internet protection :o).<<<=???

Hifitime,

Since you need it explained, Grant (Samuel) is referring to you, Schipo and the others in your group of serial pests who are posting near identical messages expressing your power cord scepticism on every power cord thread opened in the last month or two.

I for one am utterly fed up with you lot. I doubt I am alone.

Next time you log in to Audiogon, check the home page. See the bit where it says "THE HIGH END AUDIO COMMUNITY".

Well, power cords are an accepted part of high end audio.

If you, Schipo, rrog and vernneal don't like it, I would suggest there is an obvious course for you all to take.