GoodSoundClub - Romy the Cat's Audio Site

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

Post Subject: Everythings riding the line for freePosted by steverino on: 2/16/2012

NSET,

Sorry for any confusion. It seems clear from Romy's experiences and others that the electrical line is a transportation system that lets everything ride for free to any station and back. Yes the SDS uses a quartz crystal oscillator and digital components and almost certainly dumps (a small amount) of noise up the line. But think about it. That noise travels only to the turntable motor not the signal path. This is in clear contrast to the power supplies of audio amplifiers etc. The improvevent by isolating the noise was not the same as the improvement wrought by the SDS controller itself. The SDS improves pitch stability and transient definition. However inserting the balun produced changes of soundstage depth and overall clarity more similar to those found by using it with pre and power amps. Thus somehow the noise must travel to the turntable motor and then get picked up by the cartridge or tonearm cable. It seems clear that the default assumption is bi directional isolation of every component is advantageous unless Empirically found not necessary or harmful.

I don't have sufficient expertise to usefully conduct the kinds of tests you are contemplating. But it is not clear at least to me what precise tests are most valid and required. After all Romy has sometimes found audible differences without seeing anything with his test equipment. I hope you and others can test this out and determine more precisely what is going on in the line After it passes through the first component from the wall.. Most people are just going to have to test empirically the isolation of Every component no matter where it is. Regards, Steverino

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