Isolation feet/cones for PS Audio NuWave DSD DAC

@lowrider57  Thanks for the response. How did replacing the stock feet with the Tenderfeet influence your system?

You may also want to consider the footers that use ball bearing(s) in them. That is what i'm using under all my equipment currently. They replaced the DH ceramic cones. Although the DH cones are good, the bearing design presented a better stage & more detail, without the slight amount of haze (in the upper region) the cones were offering. 

Itsik, I placed the Herbies in the front corners and one in the rear. The sound is more defined, most noticeably in the low-end. I’m thinking about trying a damping weight on top, but it may not need it since the NuWave is pretty heavy for its size.

My components sit atop wood shelves, so the Herbies work for me providing vibration absorbtion. 3 cones may work well depending on the shelf or platform you have.

BDR cones also work well, but for my pine wood shelves, I keep going back to Herbies.

https://www.musicdirect.com/vibration-control/bdr-cones

Thanks for the additional input.
My system is on a custom rack made of Baltic birch plywood. Each shelf is about 30 mm thick and the feet have 4 stainless steel spikes on the bottom.
Seems like a similar situation