I received my purifiers from Audioman58 last week. I thought I would try them out since my amps plug directly into the wall. I have dedicated circuits for my amps and the front end but the front end components are supplied power through a Niagara 5000 conditioner. My thinking was that some filtering on the amp/speaker side might be beneficial. I have 100 hours now on these purifiers that Audioman58 designed for my 4 Ohm Thiel CS6 speakers that I am using with Pass Labs mono amps.
After doing a 72 hour break in on my old HT receiver I put them into my stereo system and let them play for another 15 hours or so. They are still changing but I have made some conclusions. I hear a smoother sound. I don't necessarily hear a bigger soundstage but there is a bit more air to instruments. Af first the smoother sound seemed almost blah. But the next day the sound was better. Whatever these purifiers do, I found that I had to reposition my speakers. After two 1/4" speaker position adjustments the soundstage came back into focus and the clarity was back. The other notable difference is no more ear fatigue when listening at high volumes. All gone. I don't hear a change in the highs but I wonder if these filter out some high frequency energy that I don't necessarily here but still has an impact.
I wasn't sure at first but now these purifiers are growing on me.