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

Showing 3 responses by atmasphere

Yeah, I understand that a home system is not going to match that
Sure it can.
Do not forget the amplifier part: for great dynamics you need a beefy (solid state) amplifier.
This statement isn't true. What you need is a competent amp and it does not matter if its tube or solid state.

The match between the amp and speaker is pretty important.

Perhaps a conversation about 'dynamics' is in order.

In most audiophile conversations, the word 'dynamics' usually indicates 'distortion' and you can usually substitute the latter for the former without changing the conversation.

SETs, the least powered tube amps around, also tend to be the most 'dynamic'. This is due to the fact that when you push the otherwise very low distortion SET hard, the higher ordered harmonics used by the ear to sense sound pressure start to show up. On transients.

This causes the amp to sound 'dynamic' and if you look at the reviews, its common to see that SETs sound far more dynamic than they should for their low power. Its distortion interacts with our physiology to create the illusion of 'dynamics' but if you place a sound pressure level meter in the room, it will show what is really happening.

But the truth of the matter is, tube or transistor, if the amp is *not* making distortion, its dynamic contrast will be the same.

So if we are talking about an undistorted signal, then the fact that the system can play to higher volume levels without strain is a big deal. You can do that with tubes or transistors. My system can easily play to 110db and I have only 50 watts/channel. But if you have really inefficient speakers you will need a lot more than that.


Classic Audio Loudspeakers also uses Mundorf capacitors in their crossovers.

If you don't want dynamic compression, really the only way to minimize it is to run high efficiency loudspeakers. Hopefully what this means is that the voice coils run a little cooler, which is one of the ways that speakers can have dynamic compression.