purptiger Posted July 2, 2017 Share Posted July 2, 2017 I am playing a Gib LP Classic Premium Plus into the Helix and I am using 4 cable method into a Fender Hot Rod Deluxe. i am getting great sounds. Today I noticed that I am getting hum when I turn on the s/r and use the Fender amp. When I look at the return level and lower it the hum goes away. Of course now the Fender is quieter than the Helix amp model. I checked the cables and they seem ok. What are my options? Thanks, Quote Link to comment Share on other sites More sharing options...
spikey Posted July 2, 2017 Share Posted July 2, 2017 Behringer HD400 2 channel Hum Destroyer. Run it from Helix send into the destroyer, and then from it into the guitar in on the amp. I own one and it works! Sweetwater Quote Link to comment Share on other sites More sharing options...
zooey Posted July 3, 2017 Share Posted July 3, 2017 Try the ground lift switch on the Helix? Might or might not help. Quote Link to comment Share on other sites More sharing options...
JeffMarshMusic Posted July 3, 2017 Share Posted July 3, 2017 Are you using the Helix to channel switch the amp? If so, try unplugging the channel switch cable for a moment and see if the noise goes away. (If you're not using channel switching, never mind. If you are, let me know and I'll explain.) Quote Link to comment Share on other sites More sharing options...
purptiger Posted July 3, 2017 Author Share Posted July 3, 2017 No I am not using it to toggle channels. Just to run HRD in the s/r and have aHelix model (Marshall Plexi Bright). I am working on an Allman Brothers from Philmore East sound). Quote Link to comment Share on other sites More sharing options...
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