Has anyone found a way to change the EQ center frequencies on F-series?

 

The bass, in particular, jumps from 100Hz to 160. A *lot* of vehicles have a nasty resonance around 120-130 so this thing is useless for fine tuning (at least in my case) - and only 3 paremetric bands aren't much help, either. [bTW, I use TrueRTA with a calibrated mic.]

 

The FH-P8000BT I had before had a band centered at 120 and was much more useful than the EQ in the F-series.