Setting you speakers to small and setting your desired X-Over point should send everything below the frequency you set as well as the .1 to the sub.

1) 568.2mm, 7K's, 5K5HC, 4x420's, D2500, MS200, moded Oppo BDP, Epson5020 FP
2) 218, 5200SE, DSW
3) MC200 core & MS200s to HK PA4000 house distribution