Speakers for leading edge, transients, speed and big sound

@kofibaffour I really don't know why I gave up n the M2. Maybe I'll buy them again! That said, I heard some Wilson Chronosonics that I thought were better

The perception of "slam", for example, has more to do with phase characteristics, not just drivers in a single speaker, but when more than 1 speaker is in a listening space, as would be the case with stereo or multichannel. Its an engineered solution present in a couple of brands inside pro audio...about which most "audiophile" brands have little to no clue ( i.e., the latter would prefer to keep spending up the clueless tree)

Your point about "hifi" bass and what it is / should be about is...

I do agree in principle, but I do like some slam too, and I’m not resigned to the two being mutually exclusive.

listening to Monitor Audio Platinum 200 3G speakers continue to put a smile on my face. Detailed with depth and articulation. Hooked up to Pass, Esoteric and a VPI classic…

I would recommend one of the Vivid Audio speakers.  If you want great leading-edge attack, jump factor and dynamics, but don't want the drawbacks of horns, I'd go for Kaya K90, K45, or Giya G3s2.

https://atc.audio/professional/loudspeakers/scm100asl-pro/
These will leave a mark.  Believe 115 db output.  Transients are immediate.  Best of luck on your quest.