I tried The Silencer under my ARC CD-7 CDP, ARC Ref-3 pre and ARC Ref 110 amp. When I put my pre and power amp on the Silencer, the changes were minimal. A bit like changing the tube dampers. There were there, and were positive, but they not warranted extra $11.500 IMO.
CDP was a different story. Here the changes were very substantial, in terms or removing grain, improving stage depth, resolution, HF-air and decays. It is like the noise leven in the system had dropped -20dB. Here it actually represents a reasonable value. Not good, but reasonable. I think that If I had a spare $11500 burning my pocket (which I do not have right now - the unit was on dealer loan) I would keep it. Oh well - maybe one day !
Thank you Tbg for bringing my attention to this innovative product.
PS. I borrowed The Silencer to a friend who owns VPI Aries 3 turn table. I will report back on his findings as well.