What component is responsible for dynamics ?

I still say find Grand Veenas or at least Murata super tweeters. I haven't seen

Unless one is using very dynamic speakers, which as you describe, you are not, different speakers are the way to increase dynamics. Amps, preamps, phono stages, cartridges can vary brand to brand and model to model in dynamics, so you can enhance dynamics without changing speakers. But, again, for sure, speakers are the way to get major improvements.

Kiddman, are you saying that the Grand Veenas aren't dynamic?

Simple question, simple answer. Speakers

Tbg ;
I have not heard any of the Referance 3a floorstanders and
don't know if the design aspects , described by Martyk1 above , apply to them or just to the standmount versions .

Can anyone enlighten me about that ?

Thank you