I tried PWD on Herbie’s Tenderfoot and on some cones. Surprisingly, Tenderfoot degraded sound significantly. The cones did not make any audible impact. What’s your experience/recommendation for the isolating feet?
I have tried various black diamond racing cones (3s and 4s) under mine - no real difference. Due to height restrictions on the shelf of my equipment stand, I took the PWD feet off, and it now sits on the curved feet atop of a power base - this sounds and looks the best, imo.
I can’t speak from personal experience, but the consensus opinion is power base is best, daylight second.
Aye to the PowerBase. My floor moves like a drum head and the PB was one of the best investments yet.
So some have taken the original feet off the PWDs and have them sitting on the PB? What about the PWT? Sitting on top of the PWD? With or without the original feet?
I think if you stack them it would make sense to take off the feat of the PWT and put it on top of the PWD - the curved part of the chassis on the bottom is meant to go around the polished top, but otherwise the feet would sit on it and perhaps mark it.
Thank you! I have to put powerbase to my upgrade list! It keeps growing. 
The PowerBase is one of those wonderful tweaks that really seems to work. Well worth trying it.
it still bugs me that vibration control can make such a difference. I don’t want it to.
I use a Synergistic Research level 1Tranquility Base with 3 MiG resonator footers supporting the PWD on the base. The base is powered. I can hear an improvement difference with the base unpowered and more improvement with power and still more with the MiGs.
With no base and MiGs alone there is an improvement in SQ. I am not able to discern a difference whether the MiGs are up or down or a combination of up and down as recommended. They look like metal egg cups. They are worth trying.
I too hate the fact that I love the PowerBase so much. Keep buying them. . . .
I have my PWD and PWT both on one, each on Herbie’s Audio Lab Iso-Cup footers. I’ve used the Tenderfeet, and though I don’t believe they degraded the sound, the Iso-cup is preferred by a significant margin. I like it better than the two components on their own feet or just on their bases without feet.
The PowerBase is one of those wonderful tweaks that really seems to work. Well worth trying it.
it still bugs me that vibration control can make such a difference. I don't want it to. :)
I'm with you on both counts. Solid State electronics should not be so unsettled by a bit of vibration...
J.P.
There is (electro)magnetic field everywhere and it produces electricity in vibrating wires or other electronic components. This is the only explanation I can come up with.
In my case, the PWD sits on a large and very heavy case, which I think absorbs vibration from PWD, thus introducing isolation actually makes vibration worse in PWD.
mikhail said: introducing isolation actually makes vibration worse in PWD
What you said there is PS's underlying commitment with the PB - couple the component to the PB and "drain" vibration as opposed to isolation. I've often wondered if putting mass on top of the PWD as it sits on a PB would have any effect - like a bag of inert filler or something.
David said: What you said there is PS's underlying commitment with the PB - couple the component to the PB and "drain" vibration as opposed to isolation. I've often wondered if putting mass on top of the PWD as it sits on a PB would have any effect - like a bag of inert filler or something.
I use Nordost Sort Kones between my PWD and the PB (oh, the shame of it) and am enjoying the results. The cones are said to be effective "couplers" for transferring vibration. They have been in there a long time and I should remove them as a comparison to "bare."
As for mass... give it a try. I would recommend a Generation Y college student as your inert mass, just as long as they don't exceed the weight rating of the PB. :D