It is not a big event in human history and a big act of faith to imagine that a slight modification can change the sound in a room....(it is not necessary to invoke Quantum mechanics or Relativity)
If you put 3/8 inch copper cones on 2 strategic locations on a wall you will modify the acoustical image in an audible way...But you will hear it only if your audio system is not too noisy, because perceiving a change is also linked to the way an audio system is already minimally rightly embedded in the one, second or third embeddings dimensions (mechanical, electrical, acoustical)...
If you put off some cover from an amplifier, is it then difficult to imagine a possible felt change in listening? Why not?
Forgetting peculiar electronic designs which are the basis of each part of possible gear, in my experience, what makes the S.Q of any audio system (located in one of the three rungs scale of quality/price ratio, never mind which one) is the way the audio gear is grounded and tuned in the 3 embeddings dimensions: mechanical, electrical, and acoustical....
All arguing about tweaks are only reflections, unbeknownst to those arguing most of the times, revolving around the controlled or non controlled many parameters of these dimensions...
This is my experience, always suggesting and speaking of placebos effects for that is only showing ignorance of what are placebo effects in a medical context and what audio is all about, if by audio we speak about something different than strictly electronic engineering design....
The human ear is designed structurally with a very refine abilities to perceive and to distinguish S.Q. at a level only known by recent science research....
https://phys.org/news/2013-02-human-fourier-uncertainty-principle.html
«In the tribunal of living perception Creative imagination is a better judge than dogmatic reason»- Groucho Marx studying Goethe
If you put 3/8 inch copper cones on 2 strategic locations on a wall you will modify the acoustical image in an audible way...But you will hear it only if your audio system is not too noisy, because perceiving a change is also linked to the way an audio system is already minimally rightly embedded in the one, second or third embeddings dimensions (mechanical, electrical, acoustical)...
If you put off some cover from an amplifier, is it then difficult to imagine a possible felt change in listening? Why not?
Forgetting peculiar electronic designs which are the basis of each part of possible gear, in my experience, what makes the S.Q of any audio system (located in one of the three rungs scale of quality/price ratio, never mind which one) is the way the audio gear is grounded and tuned in the 3 embeddings dimensions: mechanical, electrical, and acoustical....
All arguing about tweaks are only reflections, unbeknownst to those arguing most of the times, revolving around the controlled or non controlled many parameters of these dimensions...
This is my experience, always suggesting and speaking of placebos effects for that is only showing ignorance of what are placebo effects in a medical context and what audio is all about, if by audio we speak about something different than strictly electronic engineering design....
The human ear is designed structurally with a very refine abilities to perceive and to distinguish S.Q. at a level only known by recent science research....
https://phys.org/news/2013-02-human-fourier-uncertainty-principle.html
«In the tribunal of living perception Creative imagination is a better judge than dogmatic reason»- Groucho Marx studying Goethe