Copper v. Silver IC sound

Ral, the differences you have found between silver and copper ICs tend to blur once both are treated to a month long treatment on a MOBIE which runs a 1K 15v square wave through the ICs into a 5K load.....I have done comparisons of solid core silver and solid core copper in the same gauge with copper having a polyurethane coating and silver having a teflon extrusion over it. Same geometry, connectors, solder etc....Silver was four nines purity and copper was better than six nines as it was continuous cast copper.......Sonic differences? The bulk of the difference was in the lower mids/upper bass which had the copper allowing more mud through sweetening up the sound throughout....I found the silver more to my liking used with analog and the copper allowed the digital to sound less "busy" than the silver.....We are talking really slight differences here, but without the treatment on the MOBIE the silver could take the wallpaper off the walls in the upper mid/highs and was really thin in the lower mids/upper bass in comparison to the copper.....Bottom line is that copper will break in pretty well within the voltages and currents in a hifi system and not change much as respects frequency balance, but silver will not and that is the horror of silver......

Bob Crump
TG Audio/CTC Builders/DDR Mfg

This comparison has several problems with it. The two coatings/insulation are different. I prefer copper that has a enamel coating then teflon used as the dielectric. Silver I find is best used with polyethylene not teflon. Perhaps the best comparison would be silver with teflon and PE, and copper with the two same. Take the best of the two and compare them. And lets not forget the type of solder used. I prefer lead free WBT 4% silver. Jeff

Jallen, sorry you had problems with my methods, but this is as close as I could get given what I had available to me.....Incidentally, polyurethane is enamel and no additional dielectric is necessary as this is commonly referred to as "magnet" wire.....Also, I normally put sandwiches not wire in polyethylene and perhaps you mean heatshrink AKA polyolefin?

Why not just get a cable that uses both? Below is some text I took from LAT Internationals Web site on their IC-200 Mark II interconnect.

EXPLANATION OF OUR PROPRIETARY SILVERFUSE CONDUCTOR MATERIAL: Silverfuse is a near alloy of silver and copper. IT IS NOT SILVER PLATED OR SILVER CLAD. Plating (or clad, which is the same thing as plating) causes a dioding effect when signal is passed through resulting in brightness and distortion. The Silverfuse process starts with seven nines OFHC copper wire with a diameter that is slightly larger than the required size. It is then pulled through a trough of molten silver. The wire with a silver deposit, is then forced through a compacting die where it is subject to tremendous pressure. The silver and the high purity copper are fused together into a near alloy. The compacting fusion also reduces the wire diameter to the desired size. No dioding subsequently occurs with this process. The result provides for the benefits of silver; which are excellent definition and clarity, with the high purity copper benefits of warmth and mellowness.

Hmm...my brother has been pressure-laminating precious metalds for Texas Instrments for 15+ years...mostly gold, some silver, for commercial, defense, NASA accounts, etc.
I'll try to remember to ask him if there's any diodic potential variation as a function of pressure at the metals' interface. He probably won't know...or care, but I believe as long as the barrier is anaerobic you're done!
Oh well...nice marketing ploy, anyway, eh?