Regardless, the audible confusion is clear to hear with inferior systems, which indicates that it is messing up (i.e. distorting) these voltage transitions either before it gets to the driver or at the driver. At any given instant in time there can be only one input voltage the question is the speed of transitions required to "get it all". I suspect a lot of amps get into slewing issues and therefore distort and screw up phase relationships even before it gets to the speaker. Then there is the harmonic and IMD distortion that is going to multiply exponentially. Just going from one to two tones creates a wealth of problems for a lot of electronics then keep piling it on and you create a sonic "muck" that is fluctuating with the signal and masking information. The white paper from Nelson Pass talks about the IMD issue and the concentration of distortion.
I would argue that probably no commercially available speaker can truly do full orchestra but that also the electronics are failing to deliver just as often and probably more so when the speaker is capable of say a string quartet.
I think the ability to retain some individuality of instruments within the greater sense of orchestra (recording permitting) while capturing both micro and macro dynamics is more difficult than a lot of smaller scale material. However, most systems CANNOT even capture a single instrument with reasonable accuracy, either micro or macro. I think though that a system that gets closer to right on the large scale material (which has both micro and macro swings) will probably be able to handle the smaller scale stuff more realistically as well. It is not like it will get LESS resolving when there are fewer instruments and most experience suggests that it will get more so.
I do agree though that to judge a system a wide range of music should be used as confirmatory experience since we are far from a mathematical theory here where we can definitively predict the outcome...so why not play some stuff and find out?? To deliberately restrict yourself to Mahler is just silly, IMO because it might be that it does that brilliantly but it might not do Kraftwerk or Chick Corea all that well...it should but if you are not listening to the whole picture you might like only a certain aspect of the sound that favors tone over resolution, for example and leads you to a biased result.
Hi Morricab,
I agree with everything you're saying.
The last paragraph I've bolded was what I was attempting to say, so thank you for saying it better than I obviously did.
Be well,
853guy