Really depends. Room acoustics, speaker placement/mounting, avr, etc... What avr are you using?
I have those speakers and a denon 1713. Wall mounted. Near corners. Audyssey set mine to 80,90,80 for the fonts, center and surrounds respectively. I changed it to 120 sounds much better to me. Some will advise 150Hz as these are tiny drivers/speakers
Your sub has only a line in input.