I understand.., but I hear no tone suck with the hd too...it's more like a different sound, not better or worse..just different. .because the direct out modify slighly the tone...( with my m9 doesn't happens, I know is a different gear but still digital)
I don't know the out parameters of helix, if are like 500 it's a missed opportunity for line6..or maybe I'm the only one that hear that difference