Here is a reply I got from someone who has used the AUrios, Stillpoints and the IsoBase that a local designer in New Jersey builds, hope it is useful.
Only got finished setting up the Isobase at the end of the week. The Isobase is excellent and better than the bearing isolation devices I have tried (Stillpoints, Aurios w/tbc ball). The level of smoothness and detail it brings is very impressive. It has very much the same tonality as the Stillpoints (where Stillpoints are a bit more warmish than the Iso, and Aurios adds brightness) but just much more of everything.
For how much it costs, it's another great product.
Only got finished setting up the Isobase at the end of the week. The Isobase is excellent and better than the bearing isolation devices I have tried (Stillpoints, Aurios w/tbc ball). The level of smoothness and detail it brings is very impressive. It has very much the same tonality as the Stillpoints (where Stillpoints are a bit more warmish than the Iso, and Aurios adds brightness) but just much more of everything.
For how much it costs, it's another great product.