Computer Audio Asylum

RE: My tests on the subject-Powerline Effects, Certainly

87.228.167.35

In Reply to: RE: My tests on the subject posted by John Swenson on June 15, 2007 at 15:26:12

Your post is interesting. On my system, the digital and analog boxes are powered separately by two ac regenerators, and my computer based transport, when powered, is suppled direct from the mains via a transistor follower regulated dc supply, in an attempt to isolate the PC from the Mains and from the regenerators.

However, poweering components on and off has an effect on the sound; and powering the computer (laptop based destop) has a greater effect.

The system has been set up with an emc meter to space components apart from each other abut the greatest offending item is the satellite receiver (about 2.3 GHz) which needs to be turned off for audio replay. Unfortunately, I have a Sky system which needes rebooting every time I disconnect the box from the mains.

So, even with great care and fanaticism, it is difficult to have a system which is immune to mains and emc effects.

The SB3 itself is probably a generator of emc itself. I have found it beneficial switching my broadband modem, home nertwork and computers off completing when listening crtical to the hifi system.

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