Swapping headbands? Very accomodating!
@mixman
TLDR; Resolution is the "Detail" ...
I've tried to explained it in more detail in my review^^
Resolution and detail are linked.
Resolution is an objective ability of the transducer to reproduce the details (layers of information, details, nuances etc.).
With resolution I describe the objective ability of a transducer to reproduce the source information exactly as it is.
The information is either reproduced, or it isn't - it is audible, or not.
Detail is more of an subjective term, psychoacoustics. It depends and is affected by things like the frequency curve and all other sound characteristics, the listeners physiognomy (head, ears size/shape) and how he listens/or how well (for example Equal-loudness contour), the headphones build (materials, earpads etc.), or the amplifier/Dac etc.
So while 3 headphones can be very close in terms of resolution - or exactly the same -, the perceived details from low - high frequencies can be quite different.
If every of the 3 headphones can reproduce a specific tone (regardless how quite/loud or easy/hard audible it is), for example a low 200 Hz tone, they have in that regard the same resolution, but that doesn't mean that the perceived detail for that specific tone will be the same for the listener.
Dealux, reading your post Post #1,637 I think you're misleading yourself here, by using that comparison " ...
and you EQ them to sound more or less the same, but one can reproduce piano notes and instruments in general more clearly and the other one sounds more hazy in terms of overall instrument definition".
Measuring the timbre of a tone - in this case the headphone which reproduces it -, is not done by measuring, comparing or equalizing (though that way it is obviously psossible to get closer to the same timbre) the frequency response graph or comparing to get 100 % validity.
It is precisely done as shown in the wikipedia picture, by making a spectogram of this specific tone, with instruments as optical spectrometer, a bank of band-pass filters, by Fourier transform or by a wavelet transform
And if, for example, the timbre of both headphones is measured, the spectrum of their frequencies, and these both are exactly the same (really 100 %) the same, than the timbre of that specific tone reproduces by the headphone should be exactly or close to the same (differences would be there due to the build material, earpads etc.).
The point of the original question was to ask if the HEDDphone has clarity which also manifests itself in sharper imaging (as opposed to images that are kinda there and sometimes overlap but never sound sharp enough).
Your questions are already answered
Other wikipedia translations in different languages tell similar.
"...
one of the parameters of the individual sound in music. Timbre is determined by its sound spectrum, i.e. the specific mixture of fundamental or 1st partial, overtones and noise components, as well as the temporal course of this spectrum, the volume and other parameters."
Or the definition in french "
The timbre designates all of the sound characteristics that identify an instrument ..."
The definition is objective made by professionals, scientist and people in that field, no room for subjective interpretation. So making a facebook-poll confirms that there are other who do not use the term correctly.
Eventually it is a disservice for us all, since communication becomes harder and definitions arbitrary and blurred (especially bad since this whole field is already mixed with paraphrases, made-up definitions and visual metaphors).
I guess somewhere along the line audiophiles just made-up their own subjective interpretation, the "quality-timbre" and now mix it up with other sound characteristics.