Shielding speaker cable....

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Aug 10, 2019
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What I like about this forum is that I learn stuff...

So... when I first started out I bought some QED bi-wire and it was a long thing... I decided not to cut it down as my own circumstances are a bit fluid and it seemed a shame to hack up such good cable in nice quantities. So I coiled it in to neat loops. One day this was spied by someone who I waxing lyrical to about the speaker wire and who was telling me that you got the same effect from copper car electrical cable. He pointed at my coils and said that if I wanted to improve the sound from my speakers using the wire only I should uncoil the speaker wire as the coils would be interfering magnetically.

I checked on here and he was right (grrrrrrr...). I had to, to preserve the cables unity, trail it around the room.

Now I have had a move around. The stereo is in a much better place and away from the speakers (a la Dominic Dale's and the other fella - 'The Nameless One' - in the highly useful and informative "Get The Best From Your Hi Fi" in the video section LINK ). The speaker cable is almost the correct length and I am mighty happy that I did not cut it... BUT

I do not understand magnetic fields and distortion, nor do I particularly understand electronics and speakers. I wait for an expert (self-appointed or qualified) to come and tell me something and then I research it or blindly obey....

My speaker cable now runs past...

i) the bit where the aerial comes in.

ii) a double plug.

iii) a massive 10 plug thingy that plugs into the double plug - with numerous PSU's for various things plugged in.

iv) the virgin media cable coming in.

v) a cable modem.

vi) a wireless router.

vii) a printer.

viii) lamps.

ix) a tv signal booster.

x) a computer power unit.

They then plug into the speakers....

It is QED QDOS bi-wire.

Will these things affect the cable and the sound from the speakers? Do I need to shield it anymore? I some cheap Ikea plastic wrap... almost like the stuff that your waste pipe from the washing machine is made from. Would that do the trick? Or is that like spitting into the wind?

Because I do not understand these things I do tend to worry more than I should.... probably.
 
TBH, the voltage levels that run through the speaker cables are unlikely to be bothered by Radio Frequency Interference or the like. If they are running parallel with mains cables, then there is the possibility of inductance of a 50hz hum, but that's rather unlikely.

The coiling does introduce inductance, which can affect the way the amplifier deals with the speaker coils, so I would agree with that...
 

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