Dynamic compression in speakers themselves?


The primary audio characteristics I want to achieve in my system is an open, uncompressed, unstrained, and highly dynamic presentation.  What I don't know much about is how much speakers can or do contribute to loss of dynamics and impact.  I have a very powerful amp, but it seems that when I increase the volume, yes, the speakers get louder, but perhaps not commensurate with the increase in the volume control.  I do think I understand that this type of presentation is more easily achieved with larger scale speakers, but even with my large speakers, I feel something is wanting. 

I guess my question is, what factors contribute to any compression occurring in the speakers themselves?  Also, can the age of a speaker cause a loss of dynamics?  Mine are ~20 years old.  I'm thinking to get new speakers in the foreseeable future, so I'd like to understand more about this.  This question is in regard to traditional dynamic speakers.
mtrot
Even if you hate classical music buy something from Swedish label BIS to hear what dynamic is .
Your experiencing thermal compression 1 reason why so many audiophiles tend to use systems sparingly or for short sessions for with longer playing time VC heating and compression can cause listener fatigue. Its the price audiophiles pay for running undersized loudspeakers that require massive power to produce SPL 
The primary audio characteristics I want to achieve in my system is an open, uncompressed, unstrained, and highly dynamic presentation.           A horn does all this a more and can run off low power thus very little thermal compression.                                                                   Hoffman’s Iron Laws of Speaker Building

1) Bass Extension

2) Efficiency

3) Small Enclosure

The law is that you can only have two of these three attributes in speaker building.  Ideally we would want all three, we want speakers with good bass, can play really loud, and are small.  Unfortunately we cannot have all these.


@johnk

Interesting.  I generally am drawn to big speakers with big woofers, for the same reasons you articulate, lol.  My current, quite large, Legacy Audio Signature II speakers are from the 1990's, but still sound decent at moderate levels.  It's just that I wonder how good the capacitors and other components still are, or ever were in the first place, and how much limitation in dynamics these speakers may have.  I feel that understanding more about this issue will be of use to me when considering future speaker purchases.