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Author Topic: Best wiring for StarQuad with TRS - TRS Cable?  (Read 1555 times)

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Offline manleyf

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Best wiring for StarQuad with TRS - TRS Cable?
« on: April 04, 2015, 02:54:08 PM »
Hi - I have several feet of StarQuad cable laying around and need a 25' 3.5mm to 3.5mm cable.  I read the great post of unbalanced vs. balanced cable here: http://taperssection.com/index.php?topic=72453.0

Since I have the StarQuad, I'm going to go ahead and use it- the question is how should I wire it- I've searched here and out there :-) and have found several options:

1 - white+ to tip
2 - blue+ to ring
3 - white-, blue-, shield to sleeve/ground

OR

1 - white+ to tip
2 - white- to ring
3 - blue+, blue-, shield to sleeve/ground

OR

1 - white+, white- to tip
2 - blue+, blue- to ring
3 - shield to sleeve/ground

Are any of these 3 configurations best?

Thanks!
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Offline ~Jon Stoppable

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Re: Best wiring for StarQuad with TRS - TRS Cable?
« Reply #1 on: April 04, 2015, 03:27:41 PM »
The last is correct, although those shouldn't be labeled +/-, as each color is carrying the same signal polarity (both blues are the same, both whites are the opposite of the blues).

Offline DigiGal

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Re: Best wiring for StarQuad with TRS - TRS Cable?
« Reply #2 on: April 04, 2015, 04:44:17 PM »
Think of it like this:

White HOT = PLUS      Blue COLD = MINUS

Both whites to plus, both colds to minus, shield to shield/ground.
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Offline manleyf

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Re: Best wiring for StarQuad with TRS - TRS Cable?
« Reply #3 on: April 04, 2015, 05:19:02 PM »
Sounds good- option 3 is what I had thought logical, but just to be obsessed with doing it the best possible way, I did some Google searches, and found option 1 and 2.

I just want best sound quality for a 25' run, and if there's any potential for noise reduction, take advantage of that too.

Thanks for the replies!
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Re: Best wiring for StarQuad with TRS - TRS Cable?
« Reply #4 on: April 04, 2015, 10:49:04 PM »
Keep in mind that star quad is only effective at rejecting interference in a balanced line.  If you are using the cable for a stereo connection, it's not going to do anything special.  It could actually degrade crosstalk a bit due to higher capacitance between signal wires.  This would almost certainly not be audible, but just be aware that star quad isn't magic.

 

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