2. cables
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Idea to reduce RFI

I live 1 block from the main mobile communication tower. That my speakers has pickup some radio channel though its only audible with my ear next to the speaker.

i am looking for any idea to reduce this kind of RFI. how bout an ferrite core? ERS paper? shield interconnect? shield power cable? which is most effective way as read somewhere in the forum that shield PC for amp causes dead sound?

line conditioner or iso transformer help with RFI or they only good to clean up power?

i have all ungrounded cdp , pre and amp. would shielding PC help with floating ground units to reduce RFI?

my system:
cdp cyrus 8x with psr (no ground from unit)
pre amc cvt 1030 (no ground from unit)
amp amc cvt 2100 (no ground from unit)
cd buffer yaqin 6j1
belden diy PC
lessloss PC
few diy shielded and unshielded PC
audio art ic-3
gabriel gold Rev
kci silkworm
xindak fs gold
spendor s 3/5
porter port outlet on the way

thanks in advance
milen007

Showing 2 responses by sns

sns
3,600 posts
 
Several years ago I had an excessive RFI situation (radio station coming through stereo), in my case it was speaker cables with little or no shielding. Replacing with well shielded speaker cables solved the problem (Kimber Trifocal XL). Also, make sure all interconnects and power cords are well shielded.
As Elizabeth mentioned, moving cables around can have great effect. I suffered the radio station problems only when my system was set up on the long wall, in short wall setup I had no problems.
A power conditioner may or may not help, I was using a PS Audio P300 when I had my radio station probems.
ERS paper and Shakti Stones over transformers may help as well. Too much ERS paper will damp and veil the sound so use judiciously.
sns
3,600 posts
 
My experience with using amps on isolation transformers is that they do suck a bit of life out of the music. Lack of attack and smoothed over sound. I've tried probably a dozen power conditioners with amps, none have worked thus far.

I did use Bybees in my former amps, at that time I didn't detect any downsides, couldn't really tell you if they affected RFI as that problem had already been resolved. I do have some Bybees ready to install in my present amp, just haven't gotten around to it.
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