Hi Bernard
Well, "liquid" ranks high on my scale...
This is what the manufacturer wrote when I purchased them:
"You will notice that it will still improve up to about 200 hours, just above a week, the burning time works even without music; just the connection to the electric network works as well.
M. Antonietta Fabi"
I use a Weiss Dac2 and modded ATC SCM20SL (Duelund Xover components). The ATCs, while having a rather dark timbre, are extremely sensitive to become harsh and grainy, and the Blacknoise helped a lot in this respect.
For the Blacknoise, I have purchased the second cheapest cable from Systems and Magic to connect it to the wall, and Mac cables from the unit to the V3s. Have not compared with standard cables though.
Form what I heard, the effect of power conditioning also depends on the quality of the grid. The benefit seems greater in urban areas where noise tends to be more common in the grid.
Bruno