Axiom Home Page Forums General Discussion Home Theater small-large - crossover for dummy

Hi,
I would like some advice to properly set sound parameters on my amplifier (does not have these auto setup mode). I just got front M80, center V150, Sub EP500 and surround QS8s. My amp offers the following independant crossover and small-large setting for all speakers (40, 60, 80, 100, 120, 150 et 200). What should I select?

Is the setup should be changed when I listen to stereo mode like changing front from small to large? My amp is able to auto switch large/small for specific decode type.

Thanks