I want to thank Charles for the chance to try out the Uber. First off I have to state that my system is unusual because I live off grid and my power is supplied by an inverter. I did three test on the Uber 1st I connected it and let it settle in for 24 hrs, then I did a listening test and could hear no difference in SQ. 2nd I played a blank tracked used to test floor noise, with this track playing if I turn the vol up to 80% or higher I can hear a very slight high pitched whine if I lay my ear on my tweeter, the Uber had no effect on the whine. 3rd I connected an EMI meter to the Uber and got a high EMI reading also when I test any of the receptacles on my dedicated circuits when the Uber is plugged in I get same high EMF reading. Without Uber I get a very low reading of EMI, I get the same low reading on my dedicated circuits and the rest of the circuits in my house. I assume the whine is produced by my inverter. I have no idea why the Uber would amplify or make the EMI more noticeable.