At least 5 posts of yours into this and all I can do is

. It's not possible to say it any clearer than has been said before.
Your methodology for testing equipment is flawed if you want to determine if A is audibly different to B. Not flawed in the minds of the people who have responded to you, just plain flawed. No amount of shouting about how obvious some differences are will change that. Close your eyes, match the levels and have someone switch very quickly.
Never noticed you perceive the same song played on the same kit in the same room at the same volume differently? Some days it's enjoyable, some it's off, some it's magical?
Your ears aren't calibrated microphones and your brain isn't a pc. The only way to compensate for that is the testing methodology others have outlined for you.
Resistance is futile