I think it depends on your budget. You have decent front speakers, and fed the right amplification, can sound very good. I don't think you are currently feeding them enough power. I would try to find a used Classe 200 wpc amp. I don't think you are acheiving what you really want when you bi amp with those Rotel amps.
I think they will come alive if you give them enough power.
I think they will come alive if you give them enough power.