$8k for speakers - new or used

I think 804d3 should have tons of detail and bass punch.

But if you just have the bug, in the 8k range, I’d look at Perlisten R7T towers. Borresen X3, or Dynaudio contour 60i. Or a pair of 805d4 and a Perlisten Sub.

Also consider mofi source point 888, and Q acoustics concept 500. 

fastfreight

our OP didn't ask for smooth and sweet, he asked for detail and slam. I understand ASR recommends revel speakers for everything and if someone doesn't prefer them they need to train themselves to listen correctly until they do prefer Revel.

that song has been playing awhile now.

Try listening to some Wilson  Watt  Puppies - they might do the trick for you. They can be had used in that price range.

check out the monitor audio gold 200 G5 or the G6

You describe "wanting more - maybe detail, punch, bass." Have you considered keeping the B&W's and look into getting a quality subwoofer? You could buy a Rel No. 31 or 32, or a Martin Logan Balanced Force 212 with that budget.

https://rel.net/product-category/reference-series/

https://www.martinlogan.com/en/product/balancedforce-212