Silver has less resisance but thats negligable. If someone is interested in using almost pure silver the cheapest way is to buy silver at a Bead Store, wholesale Jewelry cable store. Then one has to get teflon cable housing from a DIY store or Electronics store. I am planning to do that myself one day just for kicks. The cost of all this nonesense shound be less than $80. Mind you this way it is non shielded (unless the teflon cable housing is rated for shielded). I have heard Silver type speaker cables tend to highlight the higher frequencies.