b&w 802 n to what speaker

I have been using the b&w 802n for the past 7 years. I generally like the sound but would like a speaker with better bass and highs. I would like to spend around $14,000. My preferences in speaker characteristics, is clarity, dynamics, tonality. I like good imaging but as less concerned with this. I have heard the b&w 802 diamond and like it but are there better alternatives , especially in the used market. There are some used focal jm lab nova utopia be for sales here. Anyone knows how they would compare to b&w 802n? Thanks for any opinions in advance.