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Best Gain Staging Practices for Wireless Mics

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Re: Best Gain Staging Practices for Wireless Mics

Postby Tim Gillett » Mon Dec 17, 2018 1:26 pm

Mike Stranks wrote:
Exalted Wombat wrote:The only special issue with a wireless mic system is the on-mic trim control. There's a compressor/limiter in front of the transmitter stage.

Not if it's a digital system. They don't use companders.

No they dont need them thankfully. But there may be some sort of limiter in there. The fact that there's a gain trim suggests the front end has more dynamic range than downstream of it, hence the need for a gain trim.

Re the trimmer, the OP believed that setting it to maximum gain would give best S/N. Without special knowledge of the particular wireless mic, I'd start by setting it to a mid position.
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Re: Best Gain Staging Practices for Wireless Mics

Postby Wonks » Mon Dec 17, 2018 1:52 pm

Here's the system manual. https://www.audio-technica.com/cms/resource_library/literature/c6bd470b3c10f634/atw_1301_english_web.pdf

There's certainly some contradiction on the receiver output level within the manual as Fig B on page 4 states the XLR is for connection to a mic level input, whilst the specification table on page 10 states the XLR output is 0dBV (and the unbalanced output is at +6dBV). The OP's experience tends to indicate the latter information is correct.

The instructions for the mic gain adjustment basically tell you to turn it all the way up, then only to bring it down if the signal appears to overload. AT are happy with a green or peaking yellow indicator; just not red. So it appears to be more of an attenuator than anything else, just in case it does get used for miking a really loud source, such as a drum or a guitar amp etc.
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Re: Best Gain Staging Practices for Wireless Mics

Postby Tim Gillett » Mon Dec 17, 2018 11:34 pm

Thanks for that info from the manual Wonks.
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