List : Components with high dynamics

You can get reasonable dynamics by selecting upstream products that overcome the inherent limitations of conventional speakers or you can choose horn speakers with compression drivers and use pretty much any amplification that suits your ear.
High quality horns are large and expensive but for dynamic reproduction they have no competition whatsoever. This is true even at normal listening levels.

With digital sources, it is possible to maximize source dynamics with various devices in the digital domain.

In the analog domain, a 3 band DBX device like a 3BX can be had for just a few hundred and can help correct for dynamics challenged source material.

I am also increasingly of the opinion that a tube or two in the source or amplification stage can help flush out micro-dynamics in particular better.

Proper matching of amps to speakers is another key factor for good dynamics. High efficiency speakers like the aforementioned horn designs provide an inherent advantage over less efficient speakers as well. all other things aside. Throwing lots of good clean power at less efficient speaker designs can be a practical solution these days as well, in particular with the maturation of good quality and highly efficient Class D amplifiers.

McIntosh MC-402 and Mc-501 amps, dynamic chamos IMO.
High effiecency speakers, of course.
Tube preamps in general.

Sorry, I meant dynamic champs regarding the amps.

To these ears, good dynamics don't translate into high sound pressure levels. I primarily listen to classical music and excellent dynamics were a major quest for my particular system. Dynamics come in all stripes, the proper presentation of which is a major factor on the enjoyment of music. I've been to pop concerts that was ear-bleeding loud but had no or very little contrasts dynamically. Drum whacks were the same loudness as screaming guitar. I have listened to many amps, but I never thought that Krell - although high powered, did very much in the dynamics department. I discovered that a change in power cord greatly increased my amp to deliver wide and subtle dynamic swings.