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Re: What you heard with the OMs was directionality of wires affecting sound. nt

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In Reply to: What you heard with the OMs was directionality of wires affecting sound. nt posted by Norm on November 10, 2004 at 09:56:15:

I heard a difference from almost all the power cords I tested, mostly distortion (hifi coloration?) and the Mikros were nothing unique. In fact I preferred some cheaper inexpensive industrial grade pcs to most of the expensive audiophile versions that I tried.
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The only difference between OM red and blue is wire direction. nt - Norm 11:12:47 11/10/04 (7)
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- if it is 3 wire and twisted...no it is not the only difference.nt - jneutron 11:24:11 11/10/04 (6)
  nt
  - They are not twisted. nt - Norm 12:31:43 11/10/04 (5)
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    - That makes it even more interesting.. - jneutron 12:37:27 11/10/04 (4)
      Well, to me at least....
      Need more details...more than can be put on a subject line..
      Config at either end..
      Are the internal wires color coded?
      Is the cord hot/ground/neutral spacing/order exactly the same.
      Are the center to center spacings the same..
      Cheers, John
      - One cannot easily look within the Omega Mikro power cords - Norm 12:46:05 11/10/04 (3)
        
        In Reply to: That makes it even more interesting.. posted by jneutron on November 10, 2004 at 12:37:27:
        
        I know they are ribbons and supposedly the construction is identical save for one having the wire pull run from the wall to the component on the hot and the opposite on the neutral. The other reverses this. They do sound different. I do not know how they are insulated, but I doubt they are color coded.
        
        Re: One cannot easily look within the Omega Mikro power cords - jneutron 12:53:40 11/10/04 (2)
        
        In Reply to: One cannot easily look within the Omega Mikro power cords posted by Norm on November 10, 2004 at 12:46:05:
        
        Thanks..walker's site does not specify any details, but only says that one will sound better..
        The explanation you've provided, which I accept as what you are told or are aware of, does not make any sense, I realize you are the messenger.....it implies that an AC current knows which way the outlet is, and can decide through some unknown mechanism, which direction to be nicer w/r to the lectrons...
        Without more construction details, I fear we are all pissin in the wind...is ground in the middle, one side, is it next to the hot??. Now those questions are extremely relevant to ground loop coupling..
        Cheers and thanks, John
        
        I was as doubtful as you are until I heard the difference - Norm 13:09:27 11/10/04 (1)
        
        In Reply to: Re: One cannot easily look within the Omega Mikro power cords posted by jneutron on November 10, 2004 at 12:53:40:
        
        I once even went to the trouble to separate a cheap two wire power cord. I reversed on wire and cut it in two. I then reterminated one with the wall plug at one end and the other with it at the other end. I then tested whether I could hear a difference. It was not as audible as with the Omega Mikro, but it was clearly different sounding.
        I think Omega Mikros further argument is that the wire in a component's ac transformer is drawn in one direction and that what you are doing is matching that draw. This then brings into question whether transformer manufacturers pay any attention to having the same draw for all windings.
        
        Re: I was as doubtful as you are until I heard the difference - jneutron 13:19:27 11/10/04 (0)
        
        In Reply to: I was as doubtful as you are until I heard the difference posted by Norm on November 10, 2004 at 13:09:27:
        
        Norm : ""I once even went to the trouble to separate a cheap two wire power cord. I reversed on wire and cut it in two. I then reterminated one with the wall plug at one end and the other with it at the other end. I then tested whether I could hear a difference. It was not as audible as with the Omega Mikro, but it was clearly different sounding.""
        
        Norm...you changed the hot to neutral capacitance, the inductance of the cord, it's susceptibility to RFI, it's impedance across the entire spectrum, and the strength of the dipole field it broadcasts for 60, 180, 300hz and up, all haversine components of the supply, as well as any coupling of audio signals and bridge rectifier (solid state of course) reverse recovery transients, as well as the integrated time rate of change flux which occurs between components and the interconnects which connect them...
        Other than those small items, your experiment was well controlled..
        (my apologies for that last bit...it's end of the day, and I have off tomorrow, so I'm chompin the bit to drown some olives...)
        
        Your experiment, while well meaning and really interesting, points out that in addition to the change you intended to test, there is a huge list of confounding changes you did not have control over that could alter the outcome of the experiment..
        Man, I can't wait till my basement lab is setup...
        Cheers, John

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