I think I may have mentioned earlier in this thread...
I actually just returned my Townshend speaker bars that I tested under my Thiel 2.7s (which sit on a sprung wood floor, covered in carpet).
Like I've said, the Townshend spring based products are one of those tweaks that "actually do something" - and something measurable.The question is whether it's what someone wants.
The spring based Townshend pods unequivocally reduced vibration transmission to my turntable. Easily felt, easily measured with a vibrometer app. Stopped the records from skipping when my son, who shakes the house like Frankenstein, would walk past the turntable.
And when I tried some cheap spring based footers under my Thiels it was easy to feel the difference in vibration around the speaker - the floor stopped vibrating with the music once decoupled by springs. Also the sound changed obviously- the speakers disappeared more, detail seemed more pronounced and more fine. But the sound also became a bit too lean and had less punch and density.
Part of that was likely due to raising the speakers on the footers. (But not entirely as raising them a similar height using isoacoustic products produced a different, darker sound).
The Townshend pods designed specifically for my speaker's weight, and which also barely raised the speakers would seemed to have been the ticket. But in the end I didn't find the effects to be as dramatic as the cheap springs, which in a way was a good thing as it kept a lot of the punch and tonal balance of the speaker. But I did lose a bit of that upper midrange tone and presence - that in-the-room live sound - and there was a slight depletion of density. Ultimately I found this outweighed any of the benefits for me, and once again I found myself preferring the speakers just sitting on the floor, no spikes or anything.
But I can certainly see the product working for other people, or even why someone might have even preferred the effects in my system, even if I did not. Plus they area good company to deal with.