Powerconditioners for digital?

I run two isolation transformers in series and a power regenerator plugged into #2 with DAC/transport plugged into the power regenerator:

isolation transformer > isolation transformer > power regenerator > DAC/transport

Works much better than any other configuration in my system.

Ptss,

I have been experimenting with power conditioners, isolation transformers and power regenerators for years to find the best possible solution to this systemic problem that we all face. I found Synergistic Research Powercell MK II and Bybee Stealth did not get the sound to where it belonged with the high quality components I have. They did not do them justice. So, by trial and error, I found a better solution.

There is only one better solution than the above configuration that I have found:

isolation transformer > power regenerator > my own DIY power conditioner > DAC/transport

Amp and preamp and subwoofer must be on a separate circuit. Otherwise the SQ seriously degrades.

I use an inexpensive medical grade isolation transformer.