Swap out b&w 802 d3 for Sonus faber amati g5?

Personally I’d take Sonus Faber over B&W any day, but it really depends on what specific improvements and sound characteristics you’re looking for, and there are a lot of other great speakers in that price range as well. 

@soix

Basically looking for more musical and comfortable to listen to speaker.  I am a musician so appreciate the realism of a  Live performance.

What  other speakers are comparable?

Likely to be a huge jump in the direction you want to go. Amati are natural and musical unlike the B&W which are hot on top with accentuated bass. I have Amati… my third set of Sonus Faber speakers and B&W for my home theater. What you are indicating you want is exactly the character of Sonus Faber. I paired mine with all Audio Research gear.