[Lex Computer & Tech Group/LCTG] speaker cables
Ken Pogran
pogran at alum.mit.edu
Thu Dec 17 11:25:47 PST 2020
Folks, I don't see how it's going to be an issue. Speakers are low
impedance—4 to 8 ohms, as are the amplifiers that drive them. Speaker
signal levels are measured in volts, not millivolts. I don't see how
EMF-induced noise could possibly be at a level that would be the
slightest bit audible in the speakers. Speaker cables are typically
like light electric cords; 18 gauge stranded. Maybe 16 (or even 14)
gauge if you bought them at a high-end audio place. They're hardly, if
ever, shielded. I might worry about noise pickup in an "RCA plug" type
of cable connecting a receiver to a powered subwoofer, where the signal
level is hundreds of millivolts and the circuit is high impedance, but
other than that, I don't see how noise pickup in speaker wire could be a
problem.
I say, coil away, John!
Ken Pogran
Michael Alexander wrote on 12/17/20 2:07 PM:
> John,
>
> If your "cables" are truly cables (i.e., electromagnetically shielded), Olga's advice may apply. My "cables" are wires; so the warnings about coiling might apply, depending on their orientation to the rf magnetic field and the radio station (where I live, my Bose radio's wire antenna and AC cord pick up static when on WHRB, whose signal is weak). You're right to experiment.
>
> -- Mike A
>
> On Thursday, December 17, 2020, 1:18:45 PM EST, Olga Guttag <guttagconsulting at gmail.com> wrote:
>
> This depends on the quality of your cables. The better insulated cables can be coiled, the very cheap ones will pick up electromagnetic fields and add “noise” to your listening pleasure. If unsure try it and see what you can tolerate.
>
> Stay well,
> Olga
>
>> On Dec 17, 2020, at 11:37 AM, S Ou <shukong at gmail.com> wrote:
>>
>> Hmm.
>> https://forum.polkaudio.com/discussion/960/ok-to-loop-excess-speaker-cable <https://forum.polkaudio.com/discussion/960/ok-to-loop-excess-speaker-cable>
>> suggests that too much coiling might pick up other magnetic/ electric
>> fields (e.g. radio stations, ha ha), so "meander" them might be better.
>> Perhaps the best test is just listening to your sound system and if they
>> sound good with cables coiled, that is probably a less messy way to store
>> them. Best of luck! I'd be curious to hear if you felt coiled cables
>> caused any undesirable results.
>>
>> On Thu, Dec 17, 2020 at 11:29 AM john rudy <jjrudy1 at comcast.net <mailto:jjrudy1 at comcast.net>> wrote:
>>
>>> I have long (maybe 15') cables from my stereo to my speakers. In the new
>>> house the speakers are closer together. Can I shorten the cables by
>>> folding
>>> the?. Or must I cut them to length. Don't suggest that I move the speakers
>>> further away
>>>
>>>
>>>
>>> John Rudy
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