Ferrite cores on cables

Hi , 

 I have seen a few sets of speaker cables that use ferrite cores on both ends . I do use these on my power cords with good results . Have any of you tried these on your speaker cables ? IF so what results if any ? Thanks in advance . 

Happy listening , 



Use them on cables from TT to phono preamp to get rid of RF/EMI.  They did not cause a noticeable loss of other frequencies.

I have used them very successfully on my PC which supplies my streaming on my system and they have got rid of an incredible amount of noise in my system and for me at least it's all for the better.

Use 2 1.5V AAA batteries with the ‘+’ pole pointing to the speaker. Much better than ferrites