Any one measured the EMI/RFI attenuation performance of audiophile power conditioners?

Another thought is that in order to publish performance data and avoid litigation, manufacturers must maintain a test lab’s certification and calibration and possibly have their test results certified by an independent laboratory.  That is not cheap.  It likely becomes a business decision of cost/benefit.  Unlike U-tubers who do their off the cuff tests with possibly uncalibrated/uncertified equipment.  At least I have not seen any of them publish their certifications in the footnotes or in their videos.  And furthermore, they should state that their data is for reference only.

Another thing about power conditioners that I found with regards to audio performance is that power cables still matter.  I bought my Niagara and Hurricane power cord and experienced a significant improvement in sound.  No question there.  My front end components are plugged into the PC, not my amps.  So I assumed that my good, not great power cords on my DAC and preamps were good enough.  After all, for this kind of money this PC should have been the end game- or so I used to think.  When I decided to try a higher level power cord on my DAC I was both surprised and disappointed at the improvement it made to the sound of the DAC.  This higher end power cord reduced the noise floor even more as well as making the DAC sound even better.  Now I had to upgrade the power cords on my preamps and the better power cords improved the sound.  So don’t expect the power conditioner alone to do it all for you.  

Deep_333, I know what you are saying.  We had some test equipment that has to measure in the 6 ma range.  These stands were decades old but suddenly we could not get a quiet enough signal to pass final test.  My theory was that the new solar farm less than a mile away was the culprit but I will never know.  My test engineer wanted ground rods sunk next to each test stand.  I had to have some long discussions with our facilities Engineering Manager to get his approval.  He was convinced it would be a waste of effort.  The stands were working fine before, blah blah blah.  Well, the ground rod worked.  They had to drill through the shop floor and then sink the ground rods while avoiding a 400 amp service trunk.  Yikes. 

@deep_333 Your example is a very poor one. Since you quoted that only one manufacturer existed, then obviously you had no other choice to find a workaround. So it doen’t apply to current situation as you have a neumerous manufacturers providing the product. Besides power for Audio isn’t anything really special either so don’t try to make it sound something very special. It’s attitude of audiophiles of accepting subjectivity in every thing under the sun has lead to manufacturers take advantage.

Besides even though I have technical lnowledge and come from research background I don’t think engineering degree is needed to understand the need of measurements for power conditioning products which cost and arm and leg. Just common sense is needed.

@tonywinga I doubt those certifications will cost so much that power conditioners costing tens of grands cannot cover it. Besides Im not going to get into cables, thats another debatable topic.

Audio_phool

@vk_onfilter I saw the productline of your company which looks impressive & you seem to serve diverse industries including chip manufacturing, R&D centers etc. and you have provided the performance chart for your products. Besides you seem to have more than 40 years of experience in the field of EMI/RFI reduction/compliance. Is application of EMI/RFI filtering to audio any special than other industries you serve which allows one to not to specify the performance data? Can such practice will be acceptable if the same product was to used in other industries than in Audio?

Audio_phool

@deep_333 Your example is a very poor one. Since you quoted that only one manufacturer existed, then obviously you had no other choice to find a workaround. So it doen’t apply to current situation as you have a neumerous manufacturers providing the product. Besides power for Audio isn’t anything really special either so don’t try to make it sound something very special. It’s attitude of audiophiles of accepting subjectivity in every thing under the sun has lead to manufacturers take advantage.

Besides even though I have technical lnowledge and come from research background I don’t think engineering degree is needed to understand the need of measurements for power conditioning products which cost and arm and leg. Just common sense is needed.

@tonywinga I doubt those certifications will cost so much that power conditioners costing tens of grands cannot cover it. Besides Im not going to get into cables, thats another debatable topic.

Audio_phool

Just pack your bags, start a thread at ASR and tell them what a measurement wiz/data driven technical genius you are. The A’gon guys and every manufacturer designing power conditioners for hifi applications (Michael Borresen, Garth Powell, etc) are all soaked in snake oil indeed. They can’t keep up with your unmatched genius.

Goodbye now