I’m still wondering about your ears.
Hearing or not differences, this discriminative power is not linked to solely our listenings habits and history, or to our hearing fitness and potentials different for each of us, but this discriminative power is also function of the way the audio system is rightfully embedded mechanically, electrically, and acoustically...
No way someone could hear some modifications in his system if the noise floor is too high or the acoustic too bad in his room, because of a lack of controls in these 3 dimensions...
All the sour and sometimes angry discussions between people come from the simple ignorance that it is not only the quality of the electronical design that makes great audio experience, but MOSTLY the way the audio system is embedded in these 3 dimensions; never mind his price if the system is on an acceptable level of quality already, the way it has been embed or would be, or not, is the KEY.....