Well now that I am upgrading from the EP175 to the EP500 what changes should I make in my settings if any. I currently have 2 M22s, VP100 and 2QS8s. And my Crossover is set at 80Hz. Just want to make sure I know what to change for this new sub if anything. Also I noticed some new things on the back of this sub (trim control)So what should that be at?