Duelund/Mundorf Ultra Loudspeaker Purifiers

Are purifiers beneficial on Magneplanar speakers, and has anyone tried this on MG20's? I have rebuilt/replaced the stock internal crossover components with Janzen silver and Audine copperfoil capacitors with Dueland 14 Ga air core copper foil inductors. There are Mundorf 0.01 MFD Silver foil bypass caps in parallel with the Janzen Caps. After a lengthy break in the speakers sound much improved. Will these purifiers help more?

Thanks!

Right out of the box using a 1970’s Akai receiver for breakin, holography plus what wig said. Head shaking not mandatory but unavoidable. They will not be going back. Thank you Audioman58.  

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.

So, if I understand correctly, these have to be built specifically for your given amp/speaker combo to have the appropriate values for the resistor and capacitor?

With that said, has anyone tried them on Green Mountain Audio speakers?

Thanks,

Chris

I am interested, Is there a money back guarantee?

ozzy