What's the problem with modern proper loudspeaker cabinets decoupling ?

I don't think that decoupling of any kind is going to improve the acoustics of already inappropriate room. The speaker box itself should be designed to be acoustically "dead". In my understanding, the firm attachment of the speaker to the wall is basically going to do more good than any attempt at decoupling.
The question here is, has the unwanted vibration of the cabinet the potential to be more significant than "secondary" vibration of the acoustic waves induced in the walls/floor/ceiling? Or let alone the resonances of the room? I personally don't think so, at least with decently designed speakers.
 
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Isn't it easier to make like this -pics, eventually-!??
All the "wires' are rubber-bands, just in case someone confuses them
https://www.diyaudio.com/community/threads/floating-speaker-enclosures.236880/page-2#post-3539827
Great, but my goal is to minimize space and mass to the ultimate level, without neo magnets.
you don't want the floor to resonate possibly coloring the sound
Every surfrace and object able to be triggered makes its own symphony of THD, this is why i've abandoned the multisub.
decently designed speakers.
A devialet phantom don't need any decoupling by design. Loudspeakers designers known what they do better than anyone here.
 
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Poorly executed idea, I would admit. But I wasn't talking about the way the speaker is secured, just about necessity of firm coupling of the speaker to the environment. Infrasonic decoupling is another thing, but to me the comparison to the microphone support was probably too provocative, because that's a whole lo different story.
 
Hello !
The new roll of PLA is arrived and the printer is at work, the polymer springs will be a tad thinner to optimize the lateral deflexions.
@ andy19191 & czgagi : should i buy contcrete bricks and drill my dektop to build an horizontal wall or will you talk about my topic instead on digressing on masonry.