I’ve been trying to tune my system in my truck for 2 months. Can’t make it perfect. 2019 ford ranger oem headunit to audio control lci2 to Hifonics alpha 5 channel amp to JL audio components in doors to 12 in shallow mount JL audio subwoofer. I keep reading people say set subwoofer low pass at 30 or 40 hertz. That is way to low. After many many different tones I’ve went with sub tuned to 60 hertz sinc wave and mids tuned to 1000hz. Now fighting crossover. After trying a lot of different settings I’ve left it at 98 hertz high pass and low pass. Still get distortion, one song sounds awesome and next one terrible. Any advice would be appreciated. This sucks