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5. Re: cable for long xlr microphone cables

Subject: 5. Re: cable for long xlr microphone cables
From: "umashankar" umashanks
Date: Fri Jun 22, 2012 5:37 pm ((PDT))
the canare site is correct. a pair of single colour (actually one of them h=
as a white stripe) go to pin two, and the other pair to pin 3. pin 1 as usu=
al is ground, which is the shield of the cable.
internally the two colour matched pairs are twisted with each other so that=
 you get (in theory) another 20 db of reduction in electrically induced noi=
se, that is hum.
=C2=A0
it is a small improvement over the shielded balanced cable.
=C2=A0
umashankar


>________________________________
> From: vickipowys <>
>To: 
>Sent: Saturday, June 23, 2012 5:10 AM
>Subject: Re: [Nature Recordists] cable for long xlr microphone cables
>
>I wrote:
>
><the advantage of using
>> quad cable for stereo recording was that you had back up with 2 cores
>> going to each channel, instead of just one.>
>>
>
>Avocet wrote:
>
>> <That is not how to wire quad cable. Two opposite conductors are
>> connected to ground and the other two carry the signal. This balances
>> out external magnetic interference. If a double connected signal wire
>> breaks, you are likely to get an intermittent connection which could
>> produce fizzle or crackle. Also the cable impedance is given for the
>> standard quad connection, but as I have said before this is not
>> important for low impedance devices up to a few hundred metres.>
>
>
>Now I am really confused.
>
>A google search including the Canare web site tells me that with quad=C2=
=A0
>cable you definitely pair the colours together (like with like), one=C2=A0=

>colour to pin 2, the other colour to pin 3, and the shield to pin 1.=C2=A0=

>e.g. if I am using cable that has blue and white wires, then I=C2=A0
>combine the two blue wires together and solder to pin 3, and the two=C2=A0=

>white wires go to pin 2.
>
>Are you saying only one blue wire would go to pin 3, and the other=C2=A0
>blue wire to the ground?=C2=A0 And one white to pin 2, the other to ground=
?
>
>
>
>Vicki Powys
>Australia
>
>
>
>
>------------------------------------
>
>"While a picture is worth a thousand words, a
>sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
>
>Yahoo! Groups Links
>
>
>
>
>
>








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