Yeah, well it’s ludicrous.
You know that what I’m saying is true. Trying to build a progressive society and make folks who are unique special snowflakes does not improve anything.
I wish you could explain how it all works. But what you’re saying doesn’t make any sense. And besides, a room that cluttered with various objects will act as an obstacle for the propagation of sound waves; hence your different experience after the tweaks.
At best, you are doing a disservice to Sansui, since they are no longer in business. You have a nice system, but there is no need for your tweaks to improve sound quality.
Do you really think your room as equal to an anechoic chamber?
You are probably creating dozens, if not hundreds of unique reflection points. It is impossible for your tweaks to improve sound quality in any meaningful way.