I don't use 50s technology in my car, so why should I use it in my stereo?
But I like 40s technology better, followed by 30s technology.
If you really want dynamics, 30s technology is the ticket.
The three common problems that create the perception of slow pace are poorly aligned vented enclosures, cheap drivers and some elements that cause poor electrical damping.
--Super high grade drivers, cost no object in fact
--High Qts extremely well damped woofers. 18" woofers with light cones under 2oz.
That is a 1936 Western Electric Mirrophonic system!
FAR FAR beyond anything else in dynamics. Don't expect to fit it in your car, however.
An then there are various compromise to evaluate. Sealed box would be my preference for smallish home speakers looking for dynamics. Bass reflex is basically a trick to jack up LF per cu.ft., one that can sound pretty good generally, at a cost.
And I'd go for light paper drivers, highish Q and compression driver HF. More power and higher damping factor will not make a slow, heavy, high xmax driver super fast, although it can improve things.
Haha--just found a vid of yours truly demoing the Mirrophonic Model 2. Never watched it before. Looking pretty burnt on the last day of the show there, Roberts!