It seems they have developed an "Electromagnetic Lens"
A quote from their designer Ted Denney on the site-
"After a long trial and error process in developing an electromagnetic lens geometry we arrived at what would become the TESLA Tricon in the summer of 2006. I remember in vivid detail that afternoon when I first connected two interconnects comprised of two TESLA Tricon geometries in parallel, (now the Precision Reference) and listened to a recording I've been using since the 1995. Fifteen seconds into the first track I shot up and ran from my listening chair to find Eliott (my co-developer in the TESLA Series). I could not believe my ears and wanted to find out if something had been changed in our system that I was not aware of, (we love to tweak our system and I needed to know if he had changed something). What I heard was unbelievable! The sound stage had moved out so far past the boundaries of our listening room that I suspected a major change had been made to our listening rooms acoustics. Furthermore, I was hearing subtle and not so subtle details and frequency extension from bottom to top that I've never before heard from this recording. The truly amazing thing was that this detail and signal speed was presented in a way that was also much more musical then it had been before. By comparison the sound we had been making was grainy, opaque, spatially compressed and slow with ill-defined bass. Now the sound was HUGE with amazing air that seemed to decay into infinity. The sound had a transparent "see through" quality and was absolutely effortless and grain free. The sound stage had also moved back several feet except when instruments were recorded front and center and these were presented further forward then before. I was beginning to realize that every cable I or anyone else had ever developed was spatially compressed- vertically, laterally, and horizontally. I was also hearing images in a near 360-degree sound field that "wrapped" around my listening chair. Before the Tricon we had hints of this envelopment but never to such an extent. Lastly low frequencies, (a long time virtue of Synergistic Research cables) were now tighter and went deeper with amazing power and control. This was major improvement in an area that I did not think could be improved upon. "
A quote from their designer Ted Denney on the site-
"After a long trial and error process in developing an electromagnetic lens geometry we arrived at what would become the TESLA Tricon in the summer of 2006. I remember in vivid detail that afternoon when I first connected two interconnects comprised of two TESLA Tricon geometries in parallel, (now the Precision Reference) and listened to a recording I've been using since the 1995. Fifteen seconds into the first track I shot up and ran from my listening chair to find Eliott (my co-developer in the TESLA Series). I could not believe my ears and wanted to find out if something had been changed in our system that I was not aware of, (we love to tweak our system and I needed to know if he had changed something). What I heard was unbelievable! The sound stage had moved out so far past the boundaries of our listening room that I suspected a major change had been made to our listening rooms acoustics. Furthermore, I was hearing subtle and not so subtle details and frequency extension from bottom to top that I've never before heard from this recording. The truly amazing thing was that this detail and signal speed was presented in a way that was also much more musical then it had been before. By comparison the sound we had been making was grainy, opaque, spatially compressed and slow with ill-defined bass. Now the sound was HUGE with amazing air that seemed to decay into infinity. The sound had a transparent "see through" quality and was absolutely effortless and grain free. The sound stage had also moved back several feet except when instruments were recorded front and center and these were presented further forward then before. I was beginning to realize that every cable I or anyone else had ever developed was spatially compressed- vertically, laterally, and horizontally. I was also hearing images in a near 360-degree sound field that "wrapped" around my listening chair. Before the Tricon we had hints of this envelopment but never to such an extent. Lastly low frequencies, (a long time virtue of Synergistic Research cables) were now tighter and went deeper with amazing power and control. This was major improvement in an area that I did not think could be improved upon. "