Im thinking it might of been user error?
Headunit distorts 1khz at volume at 26 when ACM-4.300 is set to bypass and distorts 1khz at volume 28 when set amp to 80hz.
And for the sub acm-1.300 it distorts at volume 29 with amp set to bypass and with amp set to 80hz distorts at volume 34. So my question is should i leave the amps high pass crossover at 80hz where audio control told me to leave it on both amps or bypass the whole time?