Hey Helix users. Anyone else getting crazy, non-articulate muddy sound from their Helix? I have tried every connection method possible, 3 different FRFR speaker setups, and using it with reference headphones (sennheiser HD 800s, as well as 2 other consumer-grade pairs for comparison.) Also have tried 3 different guitars, each with different pickup configurations. Lastly, all firmware is up to date and I have clean-rebooted to original factory settings. Mostly I'm getting mush as if I'm listening with industrial earplugs jammed in my ears, and in some cases, nearly all effect and no actual guitar tone. I have even gone as far as setting the global EQ to almost a full bass cut, AND have tried putting a hardware EQ in the chain. While I know speaker and output connection variables are impossible to troubleshoot, I would think I would get some clear sound from headphones. But no dice. Anyone? Bueller?