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

[planet10]

a tad shocked to don't see any good decoupling

If you decouple the driver from the box all of the reactive energy has to be disapated by the mass of driver. This reduces DDR of the system.

A system like used by The FUJITSU Ten Eclipse where the egg shaped “box” is free flosting anf the driver is anchoured to a massive stand.

dave

 

[twocents]

The loudspeakers cabinets from whatever they are put on.

Interesting topic, and I admire what you are trying to diy/do. There is certainly a point to be made for decoupling speakers (the box/enclosure) from the surface or floor, and there are many commercial products available to achieve this. Some very expensive offerings too. Snake oil? Maybe. I link to a few.
But I can only speak from personal experience. For my diy floorstander MLTL speakers (with full range drivers) I specially ordered some fancy looking Parts Express speaker spikes. Unfortunately they did not work for me. We have a slighly uneven ceramic tile floor and I often move the speakers around slighly to play with, and adjust the sound stage and sweet spot. I could never get the darn spikes to stay rigid and the speakers to stop wobbling ever so slightly. I guess spikes work much better on a very smooth concrete floor or carpet.

Anyway, I stumbled upon discussions about speaker isolation feet and it seemed that it could be beneficial and a possible solution to my problem. I then stumbled upon a thread on a post in this forum (and I simply cannot find the thread anymore) where a member placed studio monitors on thick pieces of polystyrene and how amazed he was at the improvements in the sound. I subsequently sourced 30mm thick EVA foam pads, removed the spikes and placed my speaker boxes on the foam pads. Never looked back. Could not care if it looks funny. Not only did it solve my speaker wobbling problem - it is easy to move my speakers around and I can certainly hear an improvement in the sound. Placebo effect? Maybe, but I sleep much better now.

https://isoacoustics.com/home-audio...KFzJHzAiXHJOHuiam256zITL7cMr1jZ8aApXhEALw_wcB

https://townshendaudio.com/hi-fi-home-cinema-vibration-isolation-speaker-podiums/

 

[Ethan Winer]

Folks, I just came across this thread, and I think I have something of interest. I actually measured speaker isolation, and proved that it is not needed or useful as long as the speaker is competent. Meaning the speaker is sufficiently massive and rigid to not flex, as with normal decent speakers This article is pretty long and detailed, but it explains the issues completely, and also explains why so many people believe isolation is useful:

http://ethanwiner.com/speaker_isolation.htm

 

[rdf]

If you don't like my thread, you can ignore it.

Not your forum.

 

[Terry2000]

There is no urgency and no solution to me, i don't think that anyone have to know how is made a car damper in his life, but those who are interested on the subject and don't know that are idiots and those who defend idiots are idiots as well


If you don't like my thread, you can ignore it.

@Terry2000 it is interesting but the air losses in the chshions within time should be a problem ?

It came supplied with a bicycle pump, seriously! It needed only attention a few times in a year. Basically, folded mild steel sheets enveloped bicycle tubes.