Isolation platform under US 500 for CDP


I am looking for a isolation platform under US 500 for use with my CDP. My shortlist includes the followings:

- Silent Running Audio Tremor/less
- Townshend 3D Seismic Sink
- Neuance isolation platform

Are there others that I should also consider? What would be your recommendation?
greeni
I use a Neuance platform under my digital source and like it. The Neuance has a no-questions-asked 30 day MBG, so it's easy to try.
Black Diamond Racing "Source Shelf" is what I use with great results. Getting harder to find due to carbon fiber shortages..........
Add Symposium's Ultra and Super Plus platforms to your short list. Depending on the size you need, each of the models is either within your budget or close to it.