The Blue Circle 6X Sillycone Filter is a passive AC filter designed and built by Gilbert Yeung. The 6X indicates the capability of this filter in comparison with his basic unit's cleansing power. The clever electronics are built into a section of black ABS plastic pipe, then packed and sealed with silicone to eliminate component vibration. I asked Gilbert to trim the silicone even with the edge of the pipe and not to add '6X' in a contrasting silicone color to better align with my aesthetic sense.The power cord is purposely short to maximize the unit's passive cleansing capabilities. Plug into a receptacle shared by or closest to your equipment or in your power strip. Gilbert has manufactured his Sillycone line for quite some time and they are still offered by TLP Audio. 6 1/4" x 3 1/2" Some of the on-line reviews: http://6moons.com/audioreviews/bluecircle5/1.html https://www.youtube.com/watch?v=Noc2OA-xWCM https://www.soundstageaccess.com/index.php/equipment-reviews/417-blue-circle-audio-18x-sillycone-filter-power-conditioner
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