un fact...experimenting with raising my speaker cables off the carpet and isolating them from vibrations with anti vibration supports and Mapleshade brass weights on top of their network boxes. Sound became dull and less dynamic. Back on carpet....fantastico!! Moral? Gotta play around and above all else USE YOUR EARS 👂. All the advanced acoustic design in the world ain’t necessarily gonna do it for you...keep on truckin:)Any specific embeddings device works in the limits related to any audio system and in the limits of the other 2 embeddings environment... You are right....
Then i am not surprized by your report that contradict some other report...
The contradiction only reflect that any solution must be ADAPTED to a specific audio environment and to their specific varied embeddings...😊 The ears cannot perceive in the abstract, they works in a specific environment in front of a specific system....They teach themselves how to listen and perceive in this environment...We all have different listenings histories....
This is why NO TWEAK are a universal solution...And i dont buy them....Even if some for sure are good...
Myself i dont "tweak", i make listenings experiments with my system and after that i create complementary SPECIFIC embeddings devices for the 3 dimensions, mechanical,electrical and acoustical and for my specific audio system....
The ultimate test for the ears is always natural TIMBRE perception... All the other qualities of sound come generally gradually with the implementation of the conditions for natural TIMBRE experience, be it dynamic, imaging, soundstage qualities etc...