Hi James,
You asked about my experience with the Decware Pill (above) I received in May. I thought I would wait for the return of my UFO25 amp to compare with and without the Pill. That amp is in TX going through the Cryogenic process with Don at Wathen. More on that another time. Meanwhile, I have been using the Torii MKIV from downstairs and placed it in my well-treated listening room upstairs. BTW, the Torii sounds terrific upstairs. Room treatment (and some other components) makes such a big difference.
Over two consecutive evenings, I made comparisons, listening for about 90 minutes in a sitting. I created a list of variables that would help discern improvements in SQ and help me stay focused on the task. I randomly chose six tracks from a playlist list and played them sequentially thrice over two evenings. On the first evening, I started the first 30-minute trial with the Pill, the second 30 minutes without, and finally back to with the Pill. The second evening, I repeated the process with different tracks and reversed the order: First, I listened without the Pill, then with and finally without.
Results: I could
not hear significant SQ differences listening with or without the Pill. There were some minor differences on some tracks, but nothing remarkable. Still, I plan to leave them in place. Perhaps with the return of my Cryogenic treated UFO25, they will be a more substantial contribution.
Of course, the YMMV applies, and I am using an older pair of ears than most - though they still function very well, I might add.

Tony