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Old 14th March 2008, 02:24 AM   #1
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Default ferrite cores on analogue cables

What is your opinion on this. I understand that ferrites will attenuate RF freq. - but is that going to make any improvement (in theory) to analogue signal in stereo interconnects?
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Old 14th March 2008, 10:54 AM   #2
gareth is offline gareth  Wales
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Default Re: ferrite cores on analogue cables

Originally posted by DECKY999
What is your opinion on this. I understand that ferrites will attenuate RF freq. - but is that going to make any improvement (in theory) to analogue signal in stereo interconnects?
Ferrites present a rising impedance to Radio Frequency
at or above a level (frequency usually in MHz) specified by the manufacturer of a particular ferrite. The ferrite then 'stores' this RF as an electromagnetic field around the ferrite itself.

Personally I have found that carefully selected ferrites do offer benefits in terms of sound quality.

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Old 14th March 2008, 11:18 AM   #3
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Old 18th March 2008, 06:05 PM   #4
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My experience, for what little it's worth, is completely counter-intuitive, and derives from tinkering with clip-on ferrites of the type intended for computer power cables:

On analogue cabling, and on anything but the earth cable in power cabling, I found the effect universally deleterious. The effect is slight, only really noticable over extended listening sessions where it manifests subjectively as a loss of dynamics and realism. I'm at a loss to explain it.

Correspondingly, the one place I DO find them useful is on the aerial lead for my DAB tuner, where they help to reduce the effects of radiated EMI/RFI from other components without noticably attenuating the (already weak) signal!

Anyway, in this case these things are cheap enough for you to buy a couple and experiment - don't rely on anecdote: see for yourself!

churz, sod
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