Commercial products you might want to consider are Audioquest's RF Stoppers and RF Stoppers, Jr. Radio Shack also sells ferrite cores appropriate for audio systems. I was getting RF noise through my turntable, and using three (one on each phono interconnect plus one on the power cord) of AQ's RF Stoppers worked well. Admittedly, the core on the power cord theoretically shouldn't make any difference since there is no conducting path between the motor and the tonearm; I used a core anyhow to minimize any rebroadcast interaction possibility (the AQ's came in a pack of four).
Use of Ferrite Cores for EMI Reduction???
I've been doing a lot of research on the net lately about the use of Ferrite Cores to reduce ElectroMagnetic Interference (Yes, I are an engineer). It started when I bought a digital camera and there was a Ferrite Core at each end of the USB Cable AND one at the end of the power supply going into the Camera. The directions said that it was for noise reduction through those 2 cables! So I thought, HEY, I have cables in my Audio System...
This really got me thinking about the use of Ferrite Cores to significantly reduce the influence of any stray EMI that could be degrading the sound quality. Does anyone have an idea of this would help, OR does the EM shielding that already comes with most cables do the trick?
Any hardcore Electrical Engineering input would be GREATLY appreciated. Am I on to something worth trying, or just full of bunk??
This really got me thinking about the use of Ferrite Cores to significantly reduce the influence of any stray EMI that could be degrading the sound quality. Does anyone have an idea of this would help, OR does the EM shielding that already comes with most cables do the trick?
Any hardcore Electrical Engineering input would be GREATLY appreciated. Am I on to something worth trying, or just full of bunk??