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To All Cable Deniers, 1 Very Simple Question.

There are people coming into cable threads and saying all cables sound identical. So I have 1 question for y'all.

Today, it is about power cords.

The end-plug, the metal part, the one you plug into the wall outlet. Without knowing the % of copper in the plug of your basic cable, can you absolutely certain say it sounds identical to a plug with 98% copper?

How about 60% copper plug vs 98% copper? Identical?

40% copper, Identical?

20% copper, Identical?

0% copper, Identical?

To wrap up, the question is very simple. If the copper % is different, would the 2 plugs still sound the same?

A bonus question, if a plug is 60% gold, will it sound identical vs a 98% copper?

samureyex
mylogic
838 posts
 

@bruce19 Has anyone noticed….The OP has left the room.

 

The earlier talk of the OP going silent,  no comments since posting.
Silent OPs perhaps?

Is this discussion a case of loading the weapon and letting others fire the shots?    If the OP does not care to further comment, have all the contributors been suckered?

Then if so, this power chord debate is just a shocker.

 

mapman's avatar
mapman
23,589 posts
 

I deny being a denier. So there!

mylogic
838 posts
 

@mapman 

l used to be indecisive, but now I’m not so sure.

whipsaw
789 posts
 

Thanks @bigtwin . Glad to hear that you are having good results with a hybrid approach!

kijanki's avatar
kijanki
4,507 posts
 

Lower impedance at the plug ensures the power supply can "draw" current with the least amount of restriction, which can theoretically reduce the ripple voltage in the DC stage of the power supply.

This statement bothered me, because I cannot see why.  ESR of capacitors would do that but not series source impedance.  If anything increasing series resistance should reduce DC voltage and slightly reduce ripple.

So I ran SPICE transient simulation with 50V 60Hz voltage source, generic diodes, 47000uF capacitor and 50 ohm load  (2s simulation, looking at last 10ms)

First I set source resistance at 0.1 ohm:
Vh=47.25V, Vl=47.05V   ripple voltage Vp-p=0.2V

Then I set source series resistance at 0.4 ohm
Vh=45.77V, Vl=45.64V   ripple voltage Vp-p=0.13V

It doesn't really matter in real world, as bigtwin stated, because this resistance is in order of miliohms vs magnitudes higher home wiring resistance while amplifiers reject this ripple, but it proves that AI comes with strange conclusions, based on some data it found on internet.  There is a lot of statements that capacitors series resistance (ESR) increases ripple (true), so looking for series resistance and rectifier it finds words "increases ripple".    I hope next time I have surgery doctors don't use AI to find where my organs are.

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