Power Conditioning done by IC's & Speaker Cables

I am no engineer, but my understanding is a well made cable will reject RFI, etc., except this just means the cable will not act like an antenna and pick up noise and radio signals. If the noise is already in the signal stream, I can't see how a non-power cable can help. If a well made interconnect and speaker cable is suppose to pass the signal through the system and out to the speakers without altering or coloring the sound, then the cable should pass the noise straight through with no coloration as well. You get perfectly reproduced noise.

Logically, if I am wrong, this would mean that a recording of AC noise (as music) would come out the speakers as complete silence. Not likely.

Bybee filters worked really well on my loudspeakers, but that's no substitute for line conditioning. Goto www.dezorel.com and download their "Noise Basics" file. It's a good starting point.

I don't believe a power cord should be a filter. But, what do I know?

Psychic: What is the difference of employing some type of "filter action" in a power cord or putting it inside of a fancy box ? Granted, one can go "whole hog" if you have a larger platform or chassis work with, but other than that, i don't see much of a difference as to how it is done or what it looks like. The bottom line is that the "junk" gets filtered / attenuated out of the AC line, whatever the means. Sean
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That's a good point/question, Sean. From my naive perspective, I would think that if you can filter out the noise prior to processing in your source, pre, and amp, the results would be for the better.

Cleaner in, cleaner out. But again perhaps I'm being naive.

Can a speaker cable really catch just as much noise at the end of the process as could be caught at the beginning?

Or wouldn't the speaker cabling need the capability to filter out even more noise because whatever noise came in from the AC has now been amplified to one extent or another?

If the answer is yes, anybody care to name the cable manufacturer and model?

Quote: "Psychic: What is the difference of employing some type of "filter action" in a power cord or putting it inside of a fancy box ?"

Answer: There is no difference--theoretically.

Now, by having one component perform *two* functions, try to evaluate its sonic signature and its filtration performance at the same time. I like my filtration happening elsewhere...

Quote: "Can a speaker cable really catch just as much noise at the end of the process as could be caught at the beginning?"

From what I understand there's some speaker cables that filter stuff. I think Empirical Audio does have such designs and has an explanation in the website (www.empiricalaudio.com). There is an explanation of line noise generated *within* the wire in the Bybee website (www.bybeetech.com). I went for the Bybees because Dan Wright insisted they were necessary and I accepted what the Bybee website exposed. I had also done searches on the Asylum and Harmonic Discord. Pretty controversial what I found. Eventually, Dan's posting on this matter in Audiogon clarified me as to why the controversy.

The Bybees proved to work great in my speakers--definitely worth the money. It's good to know effective filtration is happening at the last minute, just before the signal enters the voice coil. I can see that with all the mods my speaker's efficiency increased by about 2dB.