Hey all, First post, but I recently picked up a Helix and was running it through my home cinema setup as a stopgap. Last week I picked some half decent headphones (AudioTechnica ATX-40) and noticed that nearly every preset has some weird kind of distortion like the output level is way too high and there's some clipping. The only ones that aren't affected are the crystal clean ones, but anything with any gain sounds really fizzy and not good. Same with patches created from scratch or cuts ones I've downloaded. It was REALLY noticeable when I ran it through my 100w Marshall at volume. So here's what I've noticed/tried, but no joy, so I come to you all and bow to your wisdom. Help!! - I've tried lots of different guitars and lots of different leads to the input, but they're all the same. Even with the Line 6 connection and the Variax, which is the worst when using a modelled guitar. - I've tried lot's of different outputs like headphones, home cinema amp and speakers, 1/4" out, XLR out, 4 cable method to an amp, direct in the front of preset 4 on a Marshall JMD, usb to a Mac, 1/4" to a Mac ,etc and all are the same. - I haven't changed any of the levels in the global settings and tried changing impedance, etc but no change. - Just to be sure, I full the full factory reset, but no change. Firmware, etc is all fully updated. - It still does it when I turn the volume or headphone level on the Helix right down to minimum. - Changing the level in each preset or globally doesn't change anything. - There's also a weird grounding thing going on where touching or pressing the footswitches causes a different buzz. Touching the mains lead does the same thing. I've tried different power leads, different sockets and even in three other houses, but it still does it. I'm wondering if there might some kind of fault or is it just something really obvious I'm missing. I've had an Amplify and FIrehawk before the Helix and never had anything similar with either. Lastly here's a clip of what I'm hearing on the "Come A You Are" preset. http://soundcloud.co...udio-distortion Really appreciate any help as I'm out of ideas.