Ok i have an alpine 9815, 2 edk12's and a avionx 800.2 amp. the subs are nice and hit hard..but they wont go nearly as loud as they can with the MX on...what can i do to fix this? my previous subs hit hard with or without the mx feature turned on. Mainly the MX feature would be fine to have on...but it changes the tone of my fronts...and i dont want that...any help? thanks