Add me to the list of mighty impressed. I put a Denali 2000 between the wall and my Constellation monos, and noted a big difference moving from the Cyclops V1. Several weeks ago, I added the 6000 for the front end, powered by their Alpha HC cord. Was a little disappointed for a few weeks, then realized I needed to burn in the power cord. After several weeks of burn in, I can attest the Alpha power cord has come into its own. Sound is outstanding. Job well done. I'm now going to stop looking at WBF, as I need to stop spending so much on audio