2 channels reproduction itself is not a photoprint of the real event in the concert hall - not even close. So , as a start, let us agree that there is no accuracy to be had at all with only two channel playback. Not even with the worlds best loudspeakers, because there are just two of them. The stereosystem is way to flawed.Pretty much. I always thought that "musical" was to recording playback as "vivid" was to photographs, as in "The Kodachrome Effect".
I used to take pics of flowers for sales of seeds by a local nursery. If they were color correct, they looked good ... but not as good as saturated-color pics, which were the ones that more effectively sold seeds. And yes, the retailer said a few customers complained that the flowers they grew didn't look as nice as the ones in the catalog. The retailer would suggest a soil sample, or more fertilizer, or said that the customer watered too much, or didn't water enough, or whatever ... and then sold them more seeds.
See a familiar pattern?
Jim
Ok- now when we know this ….. it brings out the possibility to use some coloration to make the perceived sound quality better.