Variax Standard Acoustic in Variax Standard Posted January 2, 2018 Hey Guys, I have a Variax Standard and have been working on some acoustic sounds. I have noticed that any F# i play, I am getting a increase in volume of around 10 db and its starting to feed back. Is there anything I can do? I have a couple of eq's on it. I am going through a Line 6 Helix. No amps, just a compressor and reverb.