Vivid kaya 45 or Magico A3

Yes, a more neutral sound. That is what I am looking for.

What about the 803s isn’t neutral — what specific improvements are you looking for?  The more specific you can be the better the recommendations you’ll get here.  “More neutral” is too vague and could mean many things. 

What about the 803s isn’t neutral — what specific improvements are you looking for?

Visible here.  Note that the FR anomalies are consistent at all listening angles.

https://www.spinorama.org/speakers/Bowers%20&%20Wilkins%20803%20D3/Bowers%20&%20Wilkins/index_vendor.html

Try Yamaha NS-5000. Bigger company with more resources. You may need a more powerful amp.

I find the 803d3’s a bit edgy and bright with good bass (depending on amplifier). To my own ears the A3 is very neutral to the negative, has no life and boring YMMV. Now the Vivids are a different animal, yes warmer, has more detail but to my ears are the far more musical. Again depending on what's behind the speakers. To me I'd be able to listen for hours to the Vivids where the A3's maybe an hour or two at most. Just another perspective

Visible here.  Note that the FR anomalies are consistent at all listening angles.

@kr4  Thanks, I understand and frankly don’t even like the speakers, but I’m interested in specifically what the OP is hearing that he doesn’t like and is looking to fix.