Hi,
Thank you.
Indeed, each to ones' own.
I don't have much interest in measuring cords and cables, I'm interested in their possible impact on the sound quality.
Just for info.
ASA Adjudication on Russ Andrews Accessories Ltd - Advertising Standards Authority
how are you going to have any idea of a cables impact on sound quality without some idea of what is causing the sonic signatures of different cables you believe are there. If there is a change in sound then there has to be a mechanism, and to understand their possible impact you have to know the mechanism that cause them.
ASA Adjudication on Russ Andrews Accessories Ltd - Advertising Standards Authority
how are you going to have any idea of a cables impact on sound quality without some idea of what is causing the sonic signatures of different cables you believe are there. If there is a change in sound then there has to be a mechanism, and to understand their possible impact you have to know the mechanism that cause them.
sonic signature ... not sure what it means, but that word is simply fantastic, it really is 🙂
Seriously, if I were to use a power cord as an antenna, I would make good use of the above graphs exploring radio frequencies all the way to microwaves. Actually, in a very funny way, the graphs show that the cheap cord is much more constant across the various spectra. The wierd variations in the expensive ones look very suspicious to me.
Fortunately I use only a power cord as a ....power cord.
Thank you.
I don't have an ignore list.
I just avoid reading the rest, if the first sentence is gibberish.
I think,
when you look at the supply grid and what is connected to it, I'm surprised we don't get more problems. The harmonics from DC drives in industry, the supply cables on the grid that are very long "aerials" and varying high currents.
The Earthing that carries interference from mains filters and computers.
From the point of impact on the sound of a system having filters on the mains is OK, however how effective are the filters? Isolation transformers sound like a good idea, however you only have to look at an output transformer the know its not going to block much is it?
The question is always how can a few feet of cable make a difference when the supply comes through miles of supply cable to the house.
Not all filters seem to work some do others don't seem to make a difference.
(That's only my opinion). I don't use anything outside of my equipment.
The situation as expressed by Joshua_G must have an explanation.
Assuming its not psychoacoustic.
Regards
M. Gregg
NB just for interest,
Some domestic supplies use a combined Neutral and Earth.
Regards
M. Gregg
Some domestic supplies use a combined Neutral and Earth.
Regards
M. Gregg
It's extremely difficult to see, or measure, tiny amounts of RF on the mains supply.
Sound-wise, the isolation transformers I have in my system are doing excellent job.
Not only that not all mains filters have beneficial effect, some degrade the sound quality, probably because off chocking current variations by the clients, mainly power amps.
If there is a solid explanation, I don't know it.
I assume nothing concerning sound systems and their evaluations.
Here is a picture, (Its not the best site its from a quick search)
It was called PME or TNCs,
Types Of Earthing Systems - Electrical Engineering Centre
Its used by the supply authority so they can reduce the number of cables to a property.
So its important to know where the noise can enter a system. ie your mains configuration from the supply authority.
Only then can you get to grips with how to filter it.
If the Earth is separate from the neutral or is it in some way connected to it! (Back at the supply transformer)
Depends on the country I guess!
Regards
M. Gregg
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Again, the isolation transformers in my system are doing excellent job, sound-wise.
Is it possible for you to somehow describe the sonic signature of each of the cable combinations that you use/tried?
Do you have a preference for one, or any, of them?
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