Re: Cough Switch & Mic Splitter = Hiss
- From: "Richard Crowley" <rcrowley@xxxxxxxxx>
- Date: Wed, 31 Aug 2005 07:27:07 -0700
nmm wrote:
In order to get the announcers microphone to the program mixer as well as the intercom system we must employ a mic
level DA. Aparently a passive splitter with a "Cough switch
would kill both feeds not just the program line.
Depends on the splitter. Well-designed ones can take a dead short of one output without affecting the other one. Depends on the mute switch. The simple kind just shorts the balanced line, but it can be done differently. Sure, it is possible that a cheap splitter and a conventional switch might behave as you describe. But that is not a condemnation of all splitters and mute switches.
Problem is this: The Mic level DA we have creates a hiss in the audio chain.
Sounds like a cheap marginally-designed unit. But since you didn't identify it, we can only speculate.
Our Mixer is a Mackie, and it was said that the op-amp inputs on the board don't mix well with transformered ballanced outputs of this Mic DA.
Unlikely. Sounds like an excuse from a non-technical sales-droid.
.
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- Cough Switch & Mic Splitter = Hiss
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