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Post by keymod on Jan 1, 2017 5:50:44 GMT -6
I have a situation where I would like to use a patch bay, in normalled mode, to split a signal and have one side balanced and the other side un-balanced. Is there any reason that this would be detrimental to the integrity of either signal?
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Post by EmRR on Jan 1, 2017 11:26:18 GMT -6
You need an active or transformer solution. In a patchbay the unbalanced side will unbalance the balanced path.
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Post by keymod on Jan 1, 2017 12:01:37 GMT -6
Thank you.
What would happen if the patch Bay split the signal into two balanced outputs and one of the receiving units is unbalanced? Does that do the same thing as you mentioned?
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Post by EmRR on Jan 1, 2017 12:07:22 GMT -6
Yes.
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Post by svart on Jan 4, 2017 8:46:23 GMT -6
Balanced or differential? Two different things..
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Post by johneppstein on Jan 4, 2017 15:44:14 GMT -6
Thank you. What would happen if the patch Bay split the signal into two balanced outputs and one of the receiving units is unbalanced? Does that do the same thing as you mentioned? Generally speaking the answer would be Yes, but actually it might depend on the hardware, specifically the configuration of the jack in the unbalanced unit. If the female TS connector lacks any contact for the ring, as many do, it should not unbalance the balanced connection. If it has a grounded ring contact (can't imagine why, but it might) then it will unbalance the entire circuit. Some devices use a "pseudo-balanced" configuration with a grounded ring - those will DEFINITELY unbalance the circuit. If you're splitting it via a patchbay mult, using an unbalanced (T-S) cable on the unbalanced side will make the whole thing unbalanced. Using a TRS will cause it to follow the configuration of the unbalanced input. However there's another factor to consider, which is what the possible effect of the additional loading on one side of the balanced circuit might cause. It might result in the signal being "less than balanced".... The correct way to do it would be to use a balun transformer on the unbalanced side. |
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