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QS4s with 18 guage speaker wire
#364314 01/19/12 11:15 PM
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I currently have 18 gu wire in my walls running to where I am going to mount my QS4 surround speakers. Would this be a foolhardy move or could I get away with it?

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M22v2, VP150, QS4s

Re: QS4s with 18 guage speaker wire
jeet #364315 01/19/12 11:30 PM
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You'll probably be just fine, but the discerning factor is the length of the run!


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Re: QS4s with 18 guage speaker wire
MarkSJohnson #364316 01/20/12 12:08 AM
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Sorry for my "newbie-ness", the runs from the Receiver to the speakers are around 35 feet (Surround Right) and 15 feet (Surround Left)

Re: QS4s with 18 guage speaker wire
jeet #364317 01/20/12 12:23 AM
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You might be fine but the max run with an 8 ohm load using 18 ga. wire is recommended 32 feet.

Last edited by Wid; 01/20/12 12:23 AM.

Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud

Re: QS4s with 18 guage speaker wire
Wid #364318 01/20/12 12:27 AM
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Thank you guys!

Re: QS4s with 18 guage speaker wire
jeet #364333 01/20/12 12:28 PM
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wire is wire...pssstt

Re: QS4s with 18 guage speaker wire
JBall #364349 01/20/12 03:06 PM
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Wire is not wire... Well, I guess at a strand level it might be close. smile

There are documented benefits to larger wire and scientific proof to back it, but in real life applications, unless really pushing the limits of one gauge wire, most (if not all) people wouldn't hear a difference. Unless of course they have a golden ear, or maybe doing a blind test of large gauge wire vs. specification exceeded wire.


Farewell - June 4, 2020
Re: QS4s with 18 guage speaker wire
JBall #364350 01/20/12 03:08 PM
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Originally Posted By: JBall
wire is wire...pssstt



Oh boy! I won't go there.

Re: QS4s with 18 guage speaker wire
jeet #364361 01/20/12 03:29 PM
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Hi jeet,

Given the proportion of surround content vs. the main left and right and center channels, you should be OK with the AWG18 gauge wire. Using thinner than recommended wire simply results in increased resistance, in ohms, which means you'll be "wasting" some amplifier power because your receiver's surround amplifier has to "push" the AC audio signals harder to overcome the increased resistance of the thin wire.

You certainly won't hear any difference, nor will there be an degradation of the audio signal's frequency response over the audible bandwidth.

The wire won't heat up significantly because of the thinner gauge.

Regards,
Alan


Alan Lofft,
Axiom Resident Expert (Retired)
Re: QS4s with 18 guage speaker wire
alan #364382 01/20/12 05:49 PM
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Alan,

Thanks for providing the technical details in easy to understand terms. I can sleep with a clear conscious tonight!

Cheers
Jitu

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