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Dedicated 20 amp circuit - Electrician laughed!

I brought my electrician out to my house today to show him where I would like to install a dedicated 20a circuit for my system.  He laughed and said that's the stupidest thing he's heard and laughs when people talk about it.  It said, if you're going to do it, you have to have it separately grounded (shoving a new 8 foot rod into the ground) but even then, he sees no way there can be an audible improvement.

Now, he's not just an electrician though. He rebuilds tube amps on the side and tears apart amps and such all the time so he's quite well versed in audio electronics and how they operate.

He basically said anyone who thinks they hear a difference is fooling themselves.  

Personally, I'm still not sure, I'm no engineer, my room's not perfect, and I can't spend hours on end critical listening...  But, he does kinda pull me farther to the "snake oil" side and the "suggestive hearing" side (aka, you hear an improvement because you want to hear it).

I'm not taking a side here but I thought it was interesting how definitive he was that this not only WILL not make a difference but ALMOST CANNOT make a difference. 
dtximages
hennigan
15 posts
 
I agree with the electrician. If your amplifier and other equipment is built with well-designed power supplies, noise on the power line will be filtered far below audibility.

Furthermore, optimizing the last few feet of wire and connections from your service panel to your listening room will do nothing to affect the tens or hundreds of miles of transmission and distribution lines from the power station to your house.

If you can hear artifacts due to power line noise, blame your gear for poor PSRR, not the wire between your outlet and the service panel.
jollygreenaudiophile2's avatar
jollygreenaudiophile2
275 posts
 
"IF", That last .001 of an inch of the copper conductor entering your equipment has it's circumference shielded, filtered, drained or in a few other ways modified. Then it WILL indeed,  "Modify" the magnetic field of said given area. Dependent upon "HOW" that field is modified WILL then give you a resultant difference in sound. It is an electrical system people. This is basic physics and Classic Electrodynamics, "for the most part". And some particle physics and a little field theory. Plus Quantum mechanics which then leads us into the realm of relativistic field theory. But, NOT the "Fuel line" on a 53 Buick!
 Just how did some of you guys accept the use of the microwave oven when it was first introduced? Oh, You hid behind the tree and peeked out until it was proven safe to use by that little girl and her mother. 
And not just bad, evil, "Magic" made by the "Witch 'o the North"?.........
   It's this new thing. 
We call it "Science". 
Get used to it. 
OR, 
Get out of the way. Go back and hide behind that tree again.
Ag insider logo xs@2x
cleeds
5,964 posts
 
jollygreenaudiophile2
"The Laws Of Electricity"!!!!!
Ohm’s Law is a guide. Nothing more. For what "Usually" will work, NEVER "ALWAY" will ANY of it work.
Ohm’s Law is a guide for whom ... electrons? It is in fact a valid, proven law, right?
To be fair, there are "non-Ohmic" conductors, but they don’t render the law invalid, afaik.

larryi
4,047 posts
 
I know several people who not only put in dedicated lines, but also, put in a dedicated main panel for the audio system.  A local dealer did the same for his demonstration rooms.  Still, when a noise meter was plugged into the line, it showed that there was quite a bit noise on the line.  When a good power conditioner was then plugged into the line and the meter was inserted to read the output of the power conditioner, there was a dramatic lowering of the noise on the line.  This suggests that power conditioning does more, and it is a lot cheaper.
crosby9
4 posts
 
"The Laws Of Electricity"!!!!! Ohm's Law is a guide. Nothing more. For what "Usually" will work, NEVER "ALWAY" will ANY of it work.  

    It's this new thing.
We call it "Science".
Get used to it.
OR,
Get out of the way. Go back and hide behind that tree again.


...sounds like jollygreen is straddling both sides of the tree depending on which side best suits his attempts to justify his opinion.

Wow, Just ..."wow"!!




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