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General Asylum General audio topics that don't fit into specific categories. |
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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: power cords-the last meter posted by obichni on February 12, 2007 at 14:08:22:
Audio equipment is designed to run on 50 or 60 Hz AC power. Unfortunately, the good intentions of the equipment designer do not in themselves make the equipment totally insensitive to electrical noise of other frequencies on the power wiring.If nothing but 50 or 60 Hz AC was present in your power distribution wiring, then this would not matter. If roads were perfectly smooth, cars would not need springs or dampers ("shock absorbers" in the USA). The two situations are about as equally likely.
Power cords act as filters for the electrical noise, whether the cord designer was aware or not. Some of the fancy ones are designed to avoid making the noise problem worse. There is much more involved in this than simply shielding or not shielding.
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Follow Ups Full ThreadTopic - power cords-the last meter - obichni 14:08:22 02/12/07 (130)
- Suppose you "eliminate" the power cord? - rkw 01:35:42 02/14/07 (7)
- No, because the power cord is a resonator. - Al Sekela 13:21:07 02/14/07 (3)
- Re: No, because the power cord is a resonator. - Presto 18:22:53 02/14/07 (2)
- A cord resonates at its fundamental and harmonics. - Al Sekela 09:56:02 02/15/07 (1)
- Well thought out and thorough reply Al - thanks! - Presto 16:11:34 02/15/07 (0)
- Re: Suppose you "eliminate" the power cord? - bjh 04:43:52 02/14/07 (2)
- I like mine - Schu 04:59:00 02/14/07 (1)
- I like mine too! - bjh 05:54:51 02/14/07 (0)
- Would a reasonable explanation be accepted? - Jon Risch 16:21:45 02/13/07 (7)
- Oh, but that makes too much sense. - Presto 15:43:47 02/14/07 (4)
- Indeed. - Jon Risch 21:57:47 02/14/07 (3)
- Not insignificant per se.... - Presto 23:33:00 02/14/07 (2)
- Re: Not insignificant per se.... - Jon Risch 17:39:25 02/15/07 (1)
- DIY cable posts??? I'm THERE! :o) thanks! nt - Presto 18:33:47 02/15/07 (0)
- Re: Would a reasonable explanation be accepted? - morricab 05:41:51 02/14/07 (1)
- Re: Would a reasonable explanation be accepted? - Jon Risch 21:53:08 02/14/07 (0)
- R we sane and logical here? - Al Sekela 14:22:05 02/13/07 (0)
- Thanks for all the posts. - obichni 12:41:34 02/13/07 (0)
- Faraday's Law of Induction is the explanation. - jneutron 07:00:29 02/13/07 (0)
- Power cords are audiophile silliness -- the result of believing "I know what I hear and couldn't be wrong" - Richard BassNut Greene 06:42:16 02/13/07 (42)
- I guess all my systems have been "unusual" (nt) - E-Stat 06:39:56 02/14/07 (0)
- Re: Power cords are audiophile silliness -- the result of believing "I know what I hear and couldn't be wrong" - RGA 21:50:31 02/13/07 (0)
- Pity the audiophile who trusts his/her ears, eh? - bjh 07:14:13 02/13/07 (39)
- But audiophiles rarely do that. . They read positive reviews first ...and then are biased when they audition a component - Richard BassNut Greene 07:38:36 02/13/07 (38)
- Still no answer to the real question. - markrohr 09:58:46 02/14/07 (7)
- If the imagination is active, it can lead you to like OR dislike a component - Richard BassNut Greene 12:41:38 02/14/07 (6)
- You must be a *great* dancer, Richard . . . - markrohr 15:23:16 02/14/07 (5)
- You don't "evaluate" power cords, you just say whatever you feel like saying about them - Richard BassNut Greene 07:12:32 02/15/07 (3)
- So you agree! - markrohr 10:19:13 02/15/07 (2)
- "audiophiles sometimes hear no difference at all." (I never hear those words because real audiophiles never say them) - Richard BassNut Greene 07:55:15 02/16/07 (1)
- So close and yet . . . nt - markrohr 09:54:19 02/16/07 (0)
- Better "Bob and Weave" than "Neil and Bob"!! :o) nt - Presto 16:14:14 02/14/07 (0)
- I guess I could add that auditions .... are often in a different room with different components than you have at home - Richard BassNut Greene 08:18:18 02/14/07 (5)
- WOW! Tough standard! - bjh 10:35:09 02/14/07 (4)
- Better than your no standards - Richard BassNut Greene 13:21:20 02/14/07 (3)
- blah blah blah BS nt - bjh 15:02:58 02/14/07 (2)
- That's bah bah bah (from bjh, the 'I know what I hear and could never be wrong' audiophile sheep) - Richard BassNut Greene 07:19:30 02/15/07 (1)
- blah blah blah BS nt - bjh 10:16:32 02/15/07 (0)
- Gee, does that mean - markrohr 07:15:59 02/14/07 (0)
- Re: But audiophiles rarely do that. . They read positive reviews first ...and then are biased when they audition a compo - Awe-d-o-file 15:12:47 02/13/07 (0)
- And that explains the numerous things I *don't* like, how, exactly?... nt - clarkjohnsen 10:56:04 02/13/07 (13)
- Maybe you were in a bad mood, or didn't like the person who wrote the review? - Richard BassNut Greene 08:23:05 02/14/07 (6)
- Who reads reviews? I'm not an eyes person like you, I'm all ears: I listen. nt - clarkjohnsen 09:34:38 02/14/07 (5)
- Then we have a conclusion. You dislike A/C cables if you happen to be in a bad mood or don't care for the brand name - Richard BassNut Greene 13:19:02 02/14/07 (4)
- "You dislike A/C cables if you... don't care for the brand name... [like] Irving Lipshitz." As you wish. BUT... - clarkjohnsen 12:05:11 02/15/07 (1)
- Lipshitz is a funny name ... - Richard BassNut Greene 08:06:30 02/16/07 (0)
- Re: Then we have a conclusion. You dislike A/C cables if you happen to be in a bad mood or don't care for the brand nam - kerr 05:00:41 02/15/07 (1)
- "It appears you speculated the conclusion." LOL! Of course he has no proof... - clarkjohnsen 14:11:47 02/15/07 (0)
- That's never been explained, to my knowledge - kerr 05:35:45 02/14/07 (5)
- Nor shall it be, as it totally falsifies the Nutty and PhDdy types' views. Yet on they rant. nt - clarkjohnsen 09:33:06 02/14/07 (4)
- With 20,228 posts here at the asylum, who are you to lecture on "ranting"? - Richard BassNut Greene 13:26:49 02/14/07 (3)
- I rant for reality, you rant for falsity -- exactly as seen above. I rest my case. nt - clarkjohnsen 12:08:35 02/15/07 (0)
- Bias - kerr 17:14:28 02/14/07 (0)
- That's strange... I only got 5,358 posts for Good Old CJ... - Presto 14:01:58 02/14/07 (0)
- blah blah blah BS nt - bjh 08:46:27 02/13/07 (7)
- Actually, he does have a point. - jneutron 09:03:14 02/13/07 (6)
- Huston, we have touch down... - bjh 18:23:25 02/15/07 (1)
- The package finally arrived?? - jneutron 06:29:24 02/16/07 (0)
- How come I didn't get a package of wire?... - Wellfed 09:55:13 02/13/07 (3)
- I pondered waiting for Steve Eddy to post sumptin first.he lost..:-) - jneutron 10:24:25 02/13/07 (2)
- Thanks for responding... - Wellfed 11:31:37 02/13/07 (1)
- no prob. - jneutron 11:44:57 02/13/07 (0)
- Re: power cords-the last meter - Todd Krieger 01:52:16 02/13/07 (1)
- Re: power cords-the last meter - the roofman 08:59:38 02/13/07 (0)
- Re: power cords-the last meter - Awe-d-o-file 22:24:11 02/12/07 (0)
- Why is there air?? - jea48 17:13:07 02/12/07 (2)
- Re: Why is there air?? - the roofman 09:01:03 02/13/07 (1)
- Re: And who would tilt at windmills?...n/t - LongPlay 18:07:11 02/13/07 (0)
- You have it bass ackwards - E-Stat 17:06:36 02/12/07 (20)
- Re: You have it bass ackwards - the roofman 09:03:41 02/13/07 (0)
- Great analogy - Sean 06:14:53 02/13/07 (18)
- Quite right! "An extension of the power supply." nt - clarkjohnsen 11:01:01 02/13/07 (0)
- Re: Not Really a Great analogy - Presto 09:59:29 02/13/07 (16)
- Perspective vs Understanding vs Reality - Sean 12:20:18 02/13/07 (15)
- More claims. No proof. - Presto 15:02:46 02/13/07 (14)
- Electronics 101 - Sean 17:37:32 02/13/07 (13)
- Re: Electronics 101010010010 - Presto 22:51:28 02/13/07 (12)
- Couple of questions guys: - Presto 11:26:54 02/14/07 (1)
- no prob. - jneutron 11:37:52 02/14/07 (0)
- Re: Electronics 101010010010 - Sean 07:38:17 02/14/07 (3)
- Actually I have built some stuff... - Presto 13:31:29 02/14/07 (2)
- Re: Actually I have built some stuff... - Sean 23:09:44 02/15/07 (1)
- Re: Actually I have built some stuff... - Presto 23:28:00 02/15/07 (0)
- hmmm. - jneutron 06:52:06 02/14/07 (4)
- Re: hmmm. - Sean 07:55:32 02/14/07 (3)
- Re: whao! That was a good reply -nt - theaudiohobby 02:42:40 02/14/07 (0)
- more snake oil? - theprieb 16:40:17 02/12/07 (0)
- Been there, done that - Sean 16:34:17 02/12/07 (4)
- Re: Been there, done that - Presto 10:11:33 02/13/07 (3)
- Presto, chango, magnifico.... - Sean 12:33:18 02/13/07 (2)
- The fact that I'm being a jerk... - Presto 13:33:40 02/13/07 (1)
- Re: The fact that I'm being a jerk... - Sean 17:55:05 02/13/07 (0)
- connectors? - tigweld 15:49:40 02/12/07 (0)
- Here is a neat riddle for you - Presto 15:42:37 02/12/07 (13)
- "supplying their components with pure DC " ... Point me to the market for components that run on DC, ... - bjh 18:23:26 02/12/07 (6)
- Re: "supplying their components with pure DC " ... Point me to the market for components that run on DC, ... - JimL 20:11:02 02/12/07 (5)
- You'll no doubt appreciate the difference between - bjh 20:46:10 02/12/07 (4)
- Ah, well, that explains it..... - JimL 14:21:59 02/13/07 (0)
- Re: You'll no doubt appreciate the difference between - Presto 20:50:35 02/12/07 (2)
- Keep the bright ideas coming! - bjh 04:28:56 02/13/07 (1)
- Keep thinking inside the box!(nt) - Presto 09:37:37 02/13/07 (0)
- Re: Here is a neat riddle for you - tigweld 16:06:32 02/12/07 (0)
- LOL! And I have to agree with you - AbeCollins 15:54:55 02/12/07 (4)
- ps - bjh 20:02:46 02/12/07 (0)
- Perhaps ... - bjh 19:46:32 02/12/07 (0)
- It doesn't have to be expensive - Schu 16:50:43 02/12/07 (1)
- There you go... - AbeCollins 10:35:12 02/13/07 (0)
- Yes, you are right but.... - Antonio Machado 15:29:16 02/12/07 (4)
- "The proof is in the listening". No it isn't! The proof is in the READING -- of a technical explanation. Or... - clarkjohnsen 11:04:19 02/13/07 (0)
- Re: Yes, you are right but.... - middleground 17:52:54 02/12/07 (1)
- Just Classical Music and Opera. Sometimes smooth Jazz. (n.t.) - Antonio Machado 03:48:58 02/13/07 (0)
- Same applies to everything... - Wellfed 16:06:12 02/12/07 (0)
- Re: power cords-the last meter - Tippy 15:01:34 02/12/07 (0)
- I can't tell you why BUT...... - sk 14:56:43 02/12/07 (2)
- Re: I can't tell you why BUT...... - Presto 18:13:20 02/14/07 (0)
- I'll confirm that on sk's system (in semi-rural NH) the differences are perfectly obvious. nt - clarkjohnsen 11:05:40 02/13/07 (0)
- Here is a guess - Schu 14:44:36 02/12/07 (3)
- Re: Here is a guess - Presto 15:59:41 02/12/07 (2)
- Re: Here is a guess - Schu 16:46:48 02/12/07 (1)
- With cables, DIY is the way to FLY! nt - Presto 12:57:34 02/13/07 (0)
- Actually there are only a few meters - risabet 14:37:41 02/12/07 (0)
- "R we kidding ourselves about improvement the designated power cord brings to a system" - bjh 14:36:13 02/12/07 (3)
- Re: "R we kidding ourselves about improvement the designated power cord brings to a system" - obichni 14:59:12 02/12/07 (2)
- Re: "R we kidding ourselves about improvement the designated power cord brings to a system" - bjh 15:25:09 02/12/07 (0)
- Do this if you will: - ontrack2@gmail.com 15:22:42 02/12/07 (0)
- In technical matters, I'm pretty much clueless... - Wellfed 14:22:21 02/12/07 (0)
- Reduction of RFI at the least...(nt) - mkuller 14:20:42 02/12/07 (0)
Follow Ups
- R we sane and logical here? - Al Sekela 14:22:05 02/13/07 (0)
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