I have a setup running everything off of my factory radio through an AmPro interface. My factory radio has the capability of playing all the way up to a max volume of 60...while I have no intention of ever testing that level of volume I do push it to around 47-50 depending on how the song was mixed/mastered/recorded. There are certain times that the music will begin to basically do what sounds like clipping at certain points and I back the volume down a click or 2 to compensate. I have a pretty good tune on it now as well as having gone through my ampro to make sure I did not have any switches in positions that they were not supposed to be in.
Most people here have an idea of what my setup is so I won't rehash that too much but I will say that I have the big 3 done under hood with proper grounding practices. Everything is fused where it should be....grounds are done in the trunk off of the amps properly
I know that the Helix has a clipping indicator but I have not seen it light up...nor have I seen anything like this show up on the amps....does anyone have any suggestions as to what could be happening?