I recently purchased a Trifield EMI (Dirty Electricity) Line Meter to measure noise coming from my outlets. To my surprise, my $500 power conditioner (name withheld to protect the potentially innocent) appears to not filter any noise per the Trifield readings. In fact, with some of my outlets the measures are higher through the conditioner’s outlets, than the measures coming straight out of the wall. The manufacturer denies anything is wrong with their conditioner, claiming the Trifield is measuring the wrong frequencies. Can anyone explain?
Here I quite clearly state, I bolded it for you, what I wrote, that again clearly states AUDIO frequencies and frequencies CLOSE TO AUDIO that can sub-modulate down to the audio band.
>>>>Sub-modulate down to the audio band? Are
you high? Radio Waves are not even in the same domain as acoustic waves.
How can MHz or GHz electromagnetic waves submodulate down to the
acoustic band? It almost sounds like you actually think the acoustic
waveform is traveling through the wires and cables.
Now, perhaps a bit of an education to fill some missing holes in your knowledge.
Rectification acts as a modulation function. Rectifying AC and you get a DC component as a modulation product. Rectify electrical AM radio signals and what do you get? ... Audio frequencies. Why can a dimmer be so problematic? First you get the 120Hz ripples, but then on top of that, you get high frequency ringing which rides on top of the AC --- gets rectified .. still following me? ... and guess what, you get 120Hz bursts getting past low frequency filters, plus harmonics. Isn't noise grand?
What happens when you sample an FM radio signal at 100MHz with a 100MHz ADC? ... you get audio frequencies. Wow huh! What happens when the noise from a 100KHz frequency switching power supply say gets into a 96Khz DAC clock, hmmm... you get 4KHz. Now most up-sample, so it would be high frequency harmonics of the 100Khz impacting the say 768KHz 8x oversampled clock of an R2R DAC, so you have to be concerned with high frequency noise up near that frequency. With a sigma-delta DAC, the harmonic products are more complex.
Well I am not Paul's biggest fan, or the biggest fan of expensive power cords (I think there are better ways to address the purported improvements), the Niagara 1200 is an intelligently designed product. Electrical noise can be insidious and finds its way in through many avenues and even when the noise is not audio frequencies, they can be converted to audio frequencies. The Niagara appears to address many of those paths.
mammothguy5434 posts06-13-2020 1:53pmI
got an Audioquest Niagara 1200 .. What
I can say is that my system sounds far more dynamic and clean, than
ever before. The concept and the product work exceptionally well. My ears told me so. 'Nuff said...
All of which you are discussing is subject matter I really want to dissect and develop to improve my system. How can there be so much conjecture on a topic that's been focused on and researched for so long?
To me it makes sense that if an alternating current can be cleaned up in a manner, which is either different and or better than the rectifier/filtering in the devices consuming power, it can have a positive effect on the sound?
Electricity can carry noise, however usually it shouldn't interfere or degrade the sound. I run a power center as well and spent alot on it. I was more concerned about protecting my equipment and the on and off sequencing. If you dont have your equipment on a dedicated circuit I would check that first. I also like the way it looks. I didn't like people that just like to throw hate at other people. I certainly am not gullible however I do have an open mind to new ideas, given the enviroment we are all now in maybe that's not a bad thing.
I tested my ac outlets with a rfi meter before my furman and it was 97. I could hear the police talking on radio. After the furman it was 2. Couldn’t hear anything. I also added a 20amp dedicated solid strand line and an audioquest Edison nrg 20 outlet and my system sounds fantastic. So well, I can’t stand to listen to my other system upstairs. It sounds grainy. My teenagers agree as well. They’re already becoming young audiophiles. Couldn’t be happier.
I don't have an electonic gizmo...just my ears told me that the power conditioners in my system were inserting some kind of noise. Without...dead silence.
Hocus Pocus! Directional Alternating Current fuses are my favorite scam, and some electrical services somewhere might benefit from a tru power conditioner, but I doubt I will even move to outer Mongolia.
danvignau446 posts06-19-2020 10:36amHocus Pocus! Directional Alternating Current fuses are my favorite scam, and some electrical services somewhere might benefit from a tru power conditioner, but I doubt I will even move to outer Mongolia.
>>>>If it’s a scam it’s one helluva good one since more than 100,000 have been sold. You probably don’t realize it but fuses are always used in AC circuits. They’re all AC. Hel-loo!
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