Hi, i'm new on balanced audio and those hi-fi things, can anyone help me on verifying if this circuit would work for muting balanced audio? the XLR-Female receives a balanced low level signal from a XLR electret condenser MIC, the output of the circuit (XLR-Male) goes to the mixer that has phantom power, all 10uf caps are metal film, S1 and S2 are TS5A3359 analog switches that will be driven by a dedicated zero-crossing circuit, but that doesn't matter now, what i really need help is in knowing if the caps will pass through just the signal without any distortion or loss and if disconection will make any noise or pop, i also have the curiosity of knowing if this circuit is optimal for that purpose, thanks for the attention and sorry for the bad english, i'm brazillian.
Hello and welcome!
You are heavily attenuating and (very) low pass fitering the mic signal via 6k8 resistors and the huge cap to ground. Is this what you want?
You are heavily attenuating and (very) low pass fitering the mic signal via 6k8 resistors and the huge cap to ground. Is this what you want?
hi stv, you are talking about C8 and C9? this is the +48v phantom power, i want the phantom power to pass right through the circuit, this wouldn't work for this?
You connect and thus load the differential outputs of your MIC via two (relatively) low resistance paths: R2+R3 and R4+R5.
In addition you even more heavily load all AC voltage via R2/R3/R4/R5 and C8 (+C9) to ground.
I suspect there will not be much MIC output voltage left.
But maybe I am missing something regarding the phantom powered elecret mic?
EDIT: Indeed I did not know enough of phantom supply mics!
just looked it up here: https://sound-au.com/project96.htm
Your circuit may just be fine ...
In addition you even more heavily load all AC voltage via R2/R3/R4/R5 and C8 (+C9) to ground.
I suspect there will not be much MIC output voltage left.
But maybe I am missing something regarding the phantom powered elecret mic?
EDIT: Indeed I did not know enough of phantom supply mics!
just looked it up here: https://sound-au.com/project96.htm
Your circuit may just be fine ...
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