The absolute "best" filter/conditioner for digital

I use Monarchy Audios regenerator for my digital and at the cost of a "Good power chord" it wokrs great. I alternate it between my Transport/Dac as well as TT and have found it the best option so far. when used only on digital, on my system it improves the amps performance also and the only reason i could think of was it block some o the digital grunge from getting back into the main power.

If willing to pay more APS used to be great.

I found these to be far better than Filters/conditioners.

April 23,2018. Enjoyed the sound field and clarity of a solo piano from the best front row seat in a great venue yesterday. I’d like to update this thread as many new offerings have hopefully raised the bar. I understand a symmetrically balanced large isolation transformer is perhaps most efficient and best for “common mode” ac noise. I’m open to all new technologies as innovation is our never ending ally. I’m particularly interested in units/technologies addressing “differential mode” ac noise. Cheers! to silencing ubiquitous ac line line, both incoming and “within” our systems. Thanks for your contribution.