Dynamics at lower volumes?

Tube amps sound better at low volumes because they compress dynamics. My Tact digital amplifier actually sounds more dynamic (a different way of sounding better at low volume) because it has a much better signal to noise ratio than a conventional solid state design.

Gain matching improves signal to noise ratio (which is right next to Godliness).
A simple resistor on the "hot" side of the amplifier input is all you need to do it correctly.
Here is how you can determine the value you need:
1. buy a few cheap resisters: (say two pair of 10K pair of 5K pair of 1K)
2. take a pair of junk interconnects, cut them in half and solder (or alligator clip) the 10K across the center wire and then reconnect the shield/ground side to complete the circuit. If 10K is not enough add more. When you decide what value resister you need, you can buy low noise Vishays or Caddocks from Parts Connection and solder them in. (When you sell the amp, just remove them.)

Great post, 6550c, bravo!

OK 6550c, Trelja, define your terms. I will venture that reproducing the dynamic range of "real life" in the home is impossible.
What we actually do is play recordings that have a very limited dynamic range.
The question posed was "Are there are any speaker or amp designs that are thought to generally be inherently better at producing good dynamics at lower volumes?". The answer is that some designs are more liner at low levels than others, and that some designs are perceived as such, even though they are not. This question is related to, but not the same as the question of how we perceive sound through our ear/brain. Cheap loudness controls and speakers with depressed midrange response are certainly to be avoided. The DRC that Tact uses is quite sophisticated and can be user adjusted to conform to any set of curves one wishes.