Dedicated AC Line For Hi-Fi Setup

mtemur

Member
Mar 26, 2019
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I am using a dedicated line for my setup for more than 15 years. it makes a significant improvement over a wall receptacle. I tried lost of different cables and figured out a couple of things:
  • it has to be made of solid cores
  • it should be uninterrupted from electric meter to audio system
  • there should be only one fuse (right after the meter)
  • it should be made of good quality copper.
  • area of the conductors should be at least 2.5 square mm for 220V and 4 square mm for 110V
  • finally a good grounding is a must
these are my observations but they may not be right for everybody.

recently I came across Oyaide 102 SSC EE / F-S 2.6 in wall cable at a hi-fi dealer.

http://www.oyaide.com/ENGLISH/AUDIO/products_category/power_cord/pg466.html
https://www.monoandstereo.com/2014/12/oyaide-102-ssc-copper-cable-new.html

it has 3x5.3 square mm (2.6mm) solid cores with copper shield. I was very happy with 15 years burned in Pirelli cable but it wasn’t made for hi-fi by a hi-fi company. so I thought I should give it a try and bought that Oyaide cable.
I am really impressed by build quality. copper wires have shiny smooth surfaces and a color like gold.
it needs a lot of time to burn in but better bass control and smooth presentation are immediately noticeable over Pirelli cable which is very very good.
for quick burn in newly installed Oyaide AC line is arranged to the back of the refrigerator. after a while I will rearrange it to back of my audio system and hopefully I will get a better sound. now I’m just getting better refrigeration :)
 

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GertSterlingSilver

Well-Known Member
Aug 13, 2016
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How would one ensure good surface area connection between the wire and terminals when using a solid core wire?
Stranded wire conforms better to whatever shape it's terminated in surely.
What about skin effect? There's less surface are on a single wire than there is in multi-stranded wires, how much of a difference this makes is above me but if anyone can enlighten us that would be choice.
 

mtemur

Member
Mar 26, 2019
41
35
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How would one ensure good surface area connection between the wire and terminals when using a solid core wire?
I use Oyaide receptacles. their high clamping power on terminals ensure a good connection. there are lots of hi-fi brands such as furutech, synergistresearch etc. offering same or better terminals on their receptacles. so that's not an issue if you use one of them.
What about skin effect? There's less surface are on a single wire than there is in multi-stranded wires, how much of a difference this makes is above me but if anyone can enlighten us that would be choice.
if you're making a powercord or an extension cable up to 5 meters than it's a good idea to use stranded wire, but if it's longer than 5 meters or a dedicated line from electric meter than solid core is the right choice. the difference is about speed and energy you get from your audio system. I used both of them for a long time and always prefer the line with solid core. I should make a note that it takes a long time to fully burn in.
by the way 5 meters is not an exact value maybe it's 4 or maybe 6 meters I don't know but if it's short stranded wire is better if it's long solid core is better.
 

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