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In Reply to: RE: AC Power posted by Lynn on May 07, 2008 at 19:36:47

Even if your equipment had perfect RF noise rejection built in to its power supplies, the RF noise present on the power cords may still be coupled to the interconnect and speaker cables. RF noise may get into equipment through any port and affect the audio signal.

IME, it is important that the power cords and cables be damped as well as shielded, so that they do not support RF ringing modes. These modes are especially troublesome if they overlap and make the coupling among cables stronger. Filtering the noise on the AC is helpful in the feed to the audio system and at the noise-generating appliances. These days, almost all appliances contain switching power supplies and computers, and generate noise continuously as they wait for the user to push a button.

Follow Ups:

For some reason - E-Stat 07:14:47 05/10/08 (17)
- Which is completely reasonable considering the subject of the thread... - Ugly 13:22:50 05/11/08 (14)
  - Not sure I understand your point - E-Stat 14:06:43 05/11/08 (13)
    - What I said is clear but in case it helps... - Ugly 15:47:03 05/11/08 (12)
      - Perhaps I should more clearly stated my point - E-Stat 16:54:56 05/11/08 (11)
        
        RE: Perhaps I should more clearly stated my point - Ugly 18:47:25 05/11/08 (10)
        
        I see - E-Stat 19:12:55 05/11/08 (9)
        
        RE: I see - Ugly 21:02:00 05/11/08 (8)
        
        The problem with big, honking filter capacitors - Al Sekela 13:49:08 05/12/08 (2)
        
        RE: The problem with big, honking filter capacitors - Ugly 14:29:08 05/12/08 (0)
        
        RE: The problem with big, honking filter capacitors - andy_c 14:07:58 05/12/08 (0)
        
        Ok - E-Stat 05:51:58 05/12/08 (4)
        
        RE: Ok - Ugly 15:11:53 05/12/08 (3)
        
        I think we agree as to the problem - E-Stat 15:24:01 05/12/08 (2)
        
        RE: I think we agree as to the problem - Ugly 19:55:57 05/12/08 (1)
        
        No problemo. Enjoyed the chat -nt - E-Stat 07:26:37 05/13/08 (0)
- "Ignorance is bliss" and... - mkuller 11:30:15 05/10/08 (1)
  - You forgot using some intended superiority words - E-Stat 18:00:23 05/10/08 (0)

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