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I planned on using an Ambient UMP-2 with a Lectro SMWB for boom. The setup basically works, but there is a whistling noise when using the SMWB. I guess it is neither the cable nor the power supply as I tested both with an older SMa, and there is no hiss. The noise is present on all 3 of my SMWBs. Did someone here encounter this or knows a workaround?

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  • 1 month later...

Hi, I have the same situation with SMWB, I ve bought 3 units on September 2021 with SRC receivers and the hiss is still much recogizable even after turned off rc... (which I actually need to use), its starts at 2750 Hz... (screenshot attached) any ideas very appreciate, Thx!

 

8A3DB6A5-B61D-431B-88F7-6F74B70E68CB.png

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IYS - I'm not sure this is the same issue as reported by the OP. What mics are you using with these transmitters? How are they wired? Have you tried other microphones, or line level sources?

 

How is your input gain set? What compat mode are you using?

 

Karl Winkler

Lectrosonics, Inc. 

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Hi Karl, 

 

Thanks for answering! I used them with DPA4061 and 4060, comp EU Hybrid, and NU, but actually tested with others to with the same results.. gain around 25/27 sometimes lower, but I didn’t see changes at hiss level much, didn’t try line level, but I pluged DPAs direct to the recorder and the sound was clear.. 

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  • 3 months later...

Typically Lectro has fixed designed in problems at no charge. I can't imagine this isn't covered. Check with service. 

Best Regards,

Larry Fisher

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