ISO - grit, texture, decay, life from snares and bass drums

Hi all,

Interested to hear some theories on what I'm looking for in a speaker (or new amp).  My system features the Rega Aethos driving a pair of Wharfedale EVO 4.4 (bi-wired).  

Don't get me wrong - it sounds great. Clear, precise, involving.  Great tone, imaging, and separation.

But I'm missing a little bit of grit and texture.  Sometimes I wish these speakers partied better.  Snares don't *snap* crackle pop.

Off axis listening - especially standing in the room, rather than sitting - changes tonality significantly.

What am I looking for?  More bass? More musicality? More Life?  I don't want bright or fatigue.

Some speakers I'm considering in no particular order based on descriptions/reviews:

- Sourcepoint 8

- Revival Audio Atalante 3

- PMC prodigy5

Thanks!