Crossover upgrade for new speakers?


Considering Revel F206 for small room. Can crossover be upgraded for further refinement of sound?
ptss
Thanks guys. What tolerances do you mean scratcha. I’m not up on this topic at all. 
@scratcha- I replaced every crappy surface-mount electrolytic, in my TacT Audio 2.2X preamp recently, with either Elna Silmic II or Nichicon’s FG(Fine Gold "muse") caps (analog input and two analog output modules, ADC/DACs, motherboard & power supply = lots of caps). They are excellent electrolytics, but- unless available as special order, they’re not suitable for a crossover, being polarized electrolytics. Both are also the typical +/- 20% tolerance of, "ordinary" electrolytics.
OP-  Some component suppliers(ie: Michael Percy, if he's still around), will custom match capacitors and resistors, to within 1% of one another's values, for a small uptick in price.    Such details can tighten channel balance, if one is so concerned.  Read the blurb, directly under, "Reliable Capacitor", top of page 5:   https://www.percyaudio.com/Catalog.pdf
@rodman99999. Thanks for idea :) ! I’ve bought from Michael before and he is “great” to deal with. I didn’t think of it and am sure glad you did ! Cheers!
@ptss -  Your welcome.  He's proven a friendly, reliable and competent source for components, over the years.   Happy listening!