skategeezer Posted October 25, 2015 Share Posted October 25, 2015 So I just tried to use my Helix live and got this very loud white noise or hissing sound from the XLR output. We troubleshot the noise to the fact that the channel had phantom power on. Turned off phantom power the noise was gone. The helix is now dead silent, the front of house asked me if it was still powered on....... Quote Link to comment Share on other sites More sharing options...
billdutcher Posted November 12, 2015 Share Posted November 12, 2015 I have Phantom power off and I'm still getting white noise/hiss. Running 1.03.0 Firmware. Running XLR's to a mixer, into studio monitors. The gain on the mixer is not set high. Any help appreciated. Thanks, Bill Quote Link to comment Share on other sites More sharing options...
skategeezer Posted November 13, 2015 Author Share Posted November 13, 2015 I have Phantom power off and I'm still getting white noise/hiss. Running 1.03.0 Firmware. Running XLR's to a mixer, into studio monitors. The gain on the mixer is not set high. Any help appreciated. Thanks, Bill I was still on the firmware before 1.03 and I was able to resolve this. Are you certain that phantom power is off? Quote Link to comment Share on other sites More sharing options...
billdutcher Posted November 13, 2015 Share Posted November 13, 2015 Turns out it was the mixer (Behringer Xeynx 1832). I ran it direct into a pair of JBLPRX612M's and it's dead silent. Then ran into my QSC Touchmix 8 mixer, dead silent. Thx Quote Link to comment Share on other sites More sharing options...
JamzOR Posted November 28, 2015 Share Posted November 28, 2015 My Helix has a lot of hiss when using XLR outputs. Running 1.03 firmware. Swapped to 1/4 inch and it's quiet. Quote Link to comment Share on other sites More sharing options...
skategeezer Posted November 29, 2015 Author Share Posted November 29, 2015 My Helix has a lot of hiss when using XLR outputs. Running 1.03 firmware. Swapped to 1/4 inch and it's quiet. What is the setting for the XLR outputs? Mic or Line? Quote Link to comment Share on other sites More sharing options...
JamzOR Posted November 29, 2015 Share Posted November 29, 2015 Line. Got to try Helix at rehearsal today...it wasn't terribly loud, but there is some hiss while using 1/4" out, compared to my HD500X that is dead silent, no matter how it's connected. I use noise gate. Quote Link to comment Share on other sites More sharing options...
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