More on the VR4seIII

The instructions I read when I recieved mine state that if your into rock,heavy metal you need to bi-amp these speakers. I earlier asked what are people useing successfully with these speakers ,and see nowhere that users are bi-amping. I dont feel Im geting the best out of mine thus the reason for asking for help. Has anyone run a tube amp for the top, and solid state for the bottom. Im considering getting the RM 200 for the top and maybe Belles 150A HR for the bottom. Or Bel Canto for the bottom, or Halo for the bottom. See what I mean? Im not sure ,please advise if you would. Thanks Map1