I'm using townshend speaker bars on my standmount speakers, on an oak floor on concrete. The stands are weighted with atacama atabites for a total mass including speakers of about 27kg each.
There is another set of 4 decoupling durometer pads on the top of the stands. The townshend are not cheap new price was about £900.
I always buy isolation devices 2nd hand and paid £400, figuring if they did nothing I can move them on. They are entirely positive in my experience, imaging is improved bass is cleaner.
For a front firing subwoofer I would expect improvements too for sure, for down firing sub , I can imagine things could be different but I wouldn't say they don't work without trying them first.
On my down firing REL transmission line subwoofer I replaced the stock feet with stillpoint ultra SS, I also again found improved imaging here weirdly but that might be about controlling vibrations into the rest of the room and system, or it could just be a harmonics thing, bass is cleaner.
Bang for buck these are low in my system but they are gains so I'm still very happy. I used to use spiked stands before.
Ymmv
There is another set of 4 decoupling durometer pads on the top of the stands. The townshend are not cheap new price was about £900.
I always buy isolation devices 2nd hand and paid £400, figuring if they did nothing I can move them on. They are entirely positive in my experience, imaging is improved bass is cleaner.
For a front firing subwoofer I would expect improvements too for sure, for down firing sub , I can imagine things could be different but I wouldn't say they don't work without trying them first.
On my down firing REL transmission line subwoofer I replaced the stock feet with stillpoint ultra SS, I also again found improved imaging here weirdly but that might be about controlling vibrations into the rest of the room and system, or it could just be a harmonics thing, bass is cleaner.
Bang for buck these are low in my system but they are gains so I'm still very happy. I used to use spiked stands before.
Ymmv