POD Go High pitched background noise in POD Go Posted June 8, 2021 I'm having tons of noise also. Both before upgrading device and after, though it does happen less frequently after the update. But it is still present and horrendous when it happens. Has to be the worst experience with a Line 6 product I have had to date. Pod go directly plugged into a USB hub, hub into Mac with Catalina 10.15. Same exact setup with the HD500X has no noise at all. It's definitely isolated to the Pod Go.