Perrin1710 Posted March 20, 2016 Share Posted March 20, 2016 I am experiencing a loud humming noise from my amps when using the Firehawk. Until now I have not been able to find the source. groundlift doesn't help. My setup is as follows: guitars / behringer micromix 400 / firehawk / One channel to VOX AC30TB / Other channel via 4-cbl method to Marshall combo Directly connecting the behringer to the amps solves the problem. But hey, that's not an option really. I have also tried connecting the marshall directly, resulting in the same humming noise. I have also tried a clean channel without any amp models or effect, but to no avail. The noise is pretty loud. I estimate around 40db. At a concert this is not a real problem, but during practice my bandmembers are really getting freaked. Suggestions? Anybody else experiencing these problems? Quote Link to comment Share on other sites More sharing options...
oddbeck Posted April 5, 2016 Share Posted April 5, 2016 Do you use one or two amps? I used to split the output using an A/B-box so that it would go to two amps, and that made a lot of hum. Two different amps they were.I've not tried to do that with my firehawk so I don't know if that is the case. Quote Link to comment Share on other sites More sharing options...
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