I would appreciate any help with this. I have a 2006 Infiniti M45. It has a bose system with a factory 10" sub. I ran a line converter on the sub output from the bose amp to my fosgate 800a2 pushing 2 12" kicker solobaric L5's. It sounds good up to about half volume. If you turn it past that, all the bass cuts out. I tested the subs using rca's coming from another cars head unit and they worked fine, so i don't think my amp or subs are the problem. I'm guessing that the bose amp is cutting out the bass but i don't know why or how to fix it. Thank you in advance for any help.