GoodSoundClub - Romy the Cat's Audio Site

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

Post Subject: Pointless?Posted by Romy the Cat on: 2/3/2013

SOS, DC from PP output would not make PP unit itself made noise but will make some PS of the components connected to PP to have buzz, mostly mechanical. This type of noise would not fluctuate with volume. If you claim that you have buzzing then after a few weeks of complains it is not truly know what kind noise you have. In case of your phonostage that most likely use tube rectification it might react to PP DC in any imaginary way. It is not to mention that your tubes in photo might have some kind of unmanaged leakage between cathode and heater that very frequently cause buzz with DHT tubes. Again, I highly doubt that it was PP problem but rather I feel it is your environments problem and PP just highlights it. If PP outputs no DC, proper sinusoid, has low impedance of output and proper ground then there is absolutely nothing you might blame them. If you still have the unit I would propose to damp it at my place and we could look into it together (I also would like to try the new unit in term of sound) but since you got rid of your new PP the further discussion are pointless and we never know what had happened.

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