If you're gonna tell me that going from a 50 watt amp to 200 watt amp made a big difference, and you can hear it, agree.
If you tell me that you prefer a one speaker over another, I would probably also agree.
If you tell me you can hear your cables, or changing wall outlets makes a difference, or cable lifters, or cryo, or moon rocks, or other stuff that is scientifically proven nonsense, and tell me there are special mystical non measurable things your ears can hear.. then you need to find the door as fast as possible.
Otherwise, welcome!