Turn your crossover knob on the sub clockwise to the highest setting, or bypass if that is an option. Your receiver takes care of the bass management, so frequencies for those speakers below the crossover point for speakers set to small will be routed to the sub.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85