Just bought the Audiolab DC blocker. I have two dedicated AC outlets feeding my system. Since I expected there to be possibly some DC seeping through and the EMF filtering, it was worth a try at $150. First off it created what sounded like a cleaner sound throughout. Crisp revealing but what little 'hum' that was residual in my system was also much clearer. At first I reasoned the enhanced clarity was worth the trade off but then I noticed something else troubling. The entire presentation had lost something. After giving the unit a week to break in (although it was a demo unit and hence should have had some miles on it) I pulled it out and listened again. Without overtly realizing it, the presentation had lost the warmth, organic, musical, 3-D quality to it. WOW, my system's magic was back. I'm a bit unsure what actual effect the Blocker had. Seemingly clearer but flat OR pinched I might say. And that extra 'hum' was gone receding into the faint background as I am OCD about the smallest trace of system sound of any kind. Unit has been returned for full credit. Lesson learned. Same result with "power conditioner" by Furman.
DC blockers - what's your experience
Just viewed a video about the AudioLab DC blocker. Then watched Paul from PS Audio explain how it works and now I’m intrigued. Anyone with insite?.