Signal Fidelity Research Model 400 Speaker Cable

Signal Fidelity Research was formerly known as Sunny Cable. They make some very high-end speaker cables ($30,000/pr) and these are a pair of rarely available speaker cables. They have been touted as the “underground kingpin” of speaker cables. Made of pure silver with a very secretive formula of shielding, they have been popping up in various chat rooms where they are touted as “astounding” speaker cables. I tried this in my Audio Research system with excellent results. Stereo Times has a review on some of their line although not much is written about this particular pair.
The cables are fully isolated (two home runs per pair) and each cable has an optional ground wire built in. I have used them in a few of my systems with good results. I am going to part ways with this pair and hopefully give some luck audiophile a real bargain.