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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.

Post Subject: Two or more cross-taking switching power supplies?Posted by Romy the Cat on: 11/27/2015

As I reported before I have problem with two PP in my home to work at the same time. I have my main audio system all plugged in PP3000+ and I have my video/audio system in opera room running off PP3000. The use of PP3000 in my Opera Room is very essential and I did make a number of efforts to stop using PP3000 in Opera Room but each time the PP was drifting back as the difference is too huge to ignore in both audio and video. The problem that I have with this configuration that I have two PP3000 running in the same home and I create very recognizable by me sonic problem. So, basically when I listen more or less critical my main audio system I always forced to shut down my Opera Room regenerator. I have to do it in reveres as well but I seldom do and to power down the audio PP3000 is a big deal: DAW and few other all time on devised are plugged into it.

So, I wonder if it is possible to find some solution that would prevent the PPs to inflict each other. To hook them up on the different sides of 220V is not a good idea. I was trying to decouple the Video PP with 5kW isolation transformer. The impact to Audio PP was substantially minimized but the sound on Video PP was not as good as without the transformer. Perhaps I need a different isolation transformer? I do not want to get re engage into the games again when I was looking for something and I do not know what I need to look for. Did anybody has any practice of dealing with two or more cross-taking switching power supplies in the same system?

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