Hi Charles,
I'll call this afternoon.
I am having a problem with your refund, not of your making, that makes it necessary to resell your unit to generate your refund. I would normaly simply make the payment out of general revenue but we had a large and critical cash problem in May because a payment from a middle east customer failed as a result of Trump's rejection of the nuclear agreement and the sanctioning of some Middle East banks. We didn't expect to be victims of the US administration - but it seems there are unexpected conequences to politics. The amount was large enough to upset our finances - but I expect it to be overcome by the end of June.
I though I had a customer in San Diego all lined up for your unit - but he delayed an so did another sale in Boston. I should have it resolved soon. I have two other pending sales for 3000s. I'm just trying to upgrade them to Lithium and Furutech options.
We do not have a credit card facility so I have no way to create a credit on you credit card. The original charge was made on a PayPal account of another company who ran occasional charges on our behalf as a favour. As a manufacturer we do not normally offer a credit card payment option.
So I am sending a cheque.
Your unit arrived and was checked out.
We ran it wirh various loads from 25% to 100%.
I just want you to know it operates absolutely silently.
The other units we received back from you were sold as demo units are behaved normally at other high end audio customers.
So we have to make the asumption that some anomaly in your house AC is the culprit - probably contained in the 5% harmonic distortion shown in your scope image.
This is the one and only case of noise in the PurePower power supply caused by the incoming power we have ever seen in 10 years of delivering PurePower regenerators.
It is also peculiar that harmonic distortion should cause noise in our coils. We have installed hundreds of regenerators in homes with very high harmonic distortion - some over 10% - and the only result is that the PurePower totally removes the distortion. So there is something very specific about your case - perhaps it is an unusual frequency.
We are working with a coll manufacturer to design coils that will remain silent - even with a resonating frequency - but it would help greatly if we truly understood what is lurking in your incoming AC.
It is also true that if your utility power contains high distortion it should be a cause for concern in your home in general. You may use a regenerator to fix the audio system - but other equipment througout your home is at risk of overheating and early failure.
I'd be happy to ship our power quality analyser together with our cheque for a quick analysis of the utility power. It is capable of revealing the problem in more detail.
check never came of course. Every call it's some different story/excuse why he cannot refund me, and the same delay tactics