After spending the day with Grant from Shunyata yesterday I have a amuch greater understanding and appreciation for the part that noise plays in the audio chain. I have been talking with my personal journey and observations about getting more and more from my system, These changes are almost exclusively about the reduction of various types of noise that you don't know is there until it is not. This may sound strange but it is what I have experienced. The noise that from comes from everywhere that is above my pay grade as to knowing one from the other is crazy. Grant showed me with a tool the amount of noise on my electrical noise that you can hear very clearly when isolated and how thier products , specifically these Sigma -and Alpha X products just simply kill it. Its jaw dropping.These products when added to the power work I have done , along with the grounding from Altaira , have moved my results to a very different place. Its quit startling once experienced. I had a great sounding system before but I'm not in Kansas anymore now I am not saying that getting one of these will change your system into what it isnt only that the path to greater involvement truly runs through the noise that is present and is generated in your room, home and system