I have had a number of the different power devices in my system and so far the HYDRA is by far the best.
I have had quite a few through here and all did something well, but ultimately, they left for a reason. Whether it was loss of dynamics or slight coloration, I simply was not satisfied until I put the HYDRA in my system.
Beleive it or not, there is a break-in period with it. The first 3-4 days it is not even close to at it's best. Once it has been on for a long enough period of time, with devices plugged into it, the HYDRA is wonderful. It lowers the noise floor quite a bit without limiting dynamics. All components are greatly improved when plugged into it.
As far as the equi-tech, I have not heard it for myself, but I have friends that were not crazy about it. They now own the HYDRA.
Hope this helps.