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<blockquote data-quote="Vlad Eroxin" data-source="post: 218947" data-attributes="member: 12125">Running firmware 4.13. I got a very weird feedback problem and I can&#039;t figure out where its coming from. This happens when I load scene 02 &quot;Choir&quot; (Maybe happens with other scenes too, I just didn&#039;t test). When I start brining up DCA 4 fader to the max, all of a sudden I get weird screeching feedback out of my mains. The source is my CD player - so there shouldn&#039;t be any feedback at all. I&#039;ve done sound for over 15 years, and configured all the settings and routing from scratch, and have a unique config for my music input: DCA 4 controls CH23,24. CH23,24 input is set to BUS15,16. BUS15,16 receives Aux1,2; Aux3,4, USB L,R.Maybe the fact that I send an Input to a BUS, back to an Input and then to another BUS - has to do something with it? If you could, please try my config on your mixer. I&#039;ve exported my whole mixer config, zipped it and attached it. I&#039;ve also 7zip&#039;ed and shared it from Google Docs. Here&#039;s the link:<a href="https://drive.google.com/file/d/1XsZ6YAyl62FAV9bva5cHcoINN4bRdG2i/view?usp=sharing" target="_blank">https://drive.google.com/file/d/1XsZ6YAyl62FAV9bva5cHcoINN4bRdG2i/view?usp=sharing</a>I don&#039;t have this problem when I switch to, for example Scene 16.I would really appreciate if someone could tell me what&#039;s going on. I&#039;m a very technical guy, so please go into as much detail as you can on what you think is happening and where the feedback is coming from. Also, please let me know if you are not able to reproduce it.Thanks!</blockquote>

[QUOTE="Vlad Eroxin, post: 218947, member: 12125"] Running firmware 4.13. I got a very weird feedback problem and I can't figure out where its coming from. This happens when I load scene 02 "Choir" (Maybe happens with other scenes too, I just didn't test). When I start brining up DCA 4 fader to the max, all of a sudden I get weird screeching feedback out of my mains. The source is my CD player - so there shouldn't be any feedback at all. I've done sound for over 15 years, and configured all the settings and routing from scratch, and have a unique config for my music input: DCA 4 controls CH23,24. CH23,24 input is set to BUS15,16. BUS15,16 receives Aux1,2; Aux3,4, USB L,R. Maybe the fact that I send an Input to a BUS, back to an Input and then to another BUS - has to do something with it? If you could, please try my config on your mixer. I've exported my whole mixer config, zipped it and attached it. I've also 7zip'ed and shared it from Google Docs. Here's the link: [URL]https://drive.google.com/file/d/1XsZ6YAyl62FAV9bva5cHcoINN4bRdG2i/view?usp=sharing[/URL] I don't have this problem when I switch to, for example Scene 16. I would really appreciate if someone could tell me what's going on. I'm a very technical guy, so please go into as much detail as you can on what you think is happening and where the feedback is coming from. Also, please let me know if you are not able to reproduce it. Thanks! [/QUOTE]

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