New preamp or up grade my cartridge and or phono amp?

I have an Emotiva XMC-1 with a Rega P6 TT a Rega MCFONO phono amp and a Rega Ania cartridge. If I'm running the Emotiva in the "reference mode", would it make more sense to up grade the cartridge and phono amp (maybe even the tonearm) or add a new preamp with a HT bypass