I have a question about SMPS power supply of EverSolo DMP A6 streamer - SMPS power supplies are famous for contaminating power lines with noise and harmonics. I am NOT talking about the quality of power that the source delivers to the internal electronics of the DMP A6, because I am sure it is very good. I'm talking about the noise and harmonics that I could inject into my power line, so the question would be: is the DMP A6 source filtered enough to not inject any harmonics into my power line? . This question is because I will soon buy a DMP A6 and connect it to the output of my isolation transformer, which has a power amplifier and a preamplifier connected, both components are 100% analog and use 100% linear sources. This isolation transformer delivers very clean energy. I would not like that energy to be contaminated with noise and/or harmonics. Thank you for your help !!