Yeah, think of dynamics.  Where DR is the Y or X axis/Range or domain, you could conceive of transients as 'm' or rate of change.  Impulse response and CSDs are supposed to convey this to a large degree.  Think masses of strings in an orchestra muddled together because the driver is too slow, then a faster driver separates the mass individually so you can pick out the strings.  This is most evident in comparing amps that lack driver control versus those that grip the transducer by the ballz.

Added.

Prat was a term invented by stereo sales people to make us NOT focus on technicalities such as tonal balance, resolution, distortion, timbral realism, etc., but rather concentrate on the rhythm or beat in order to sell us overpriced stuff that sounded like shit.

I'm serious. As a former graduate of the Don Cheadle  Boogie Nights school of Stereo Salesmen, I shit you not. Some Jedi mind trickery is involved of course.

I believe in PRaT too LOL. Its like comparing the same system connected to Linux vs Windows.... Linux just has the PRaT hahahaha seriously try it 

IMHO you can only influence PRaT during the recording session itself by 'whipping' the performing artists. 

As Jerg already stated the terminology is often misused.

"Even my wife loves it!"

Used to be one of the most used tropes in audio reviews.