Synergistic Research Resolution Fx, Wireworld Equinox 5, and JPS Superconductor+. I also had a set of Purist Audio Opis from another dealer to compare. So I've been busy the last couple of weeks but it has also been a boatload of fun. All are very good cables and each does something a bit different than the other. In my system it came down to the Opis and the Resolution Fx. The bass control and LF transparency of the Opis is excellant but they are a tad dark in the mid and HF. This is where the Resolution Fx really shine. On the other hand the Resolution lack any real LF definition, which I believe the Synergistic folks do recommend using another of their cables for better LF response. Matter of fact, I was getting the best results with the Opis driving the woofers and the Resolution Fx driving the uppers, but there was a noticeable step to the crossover circuit response due to this configuration. Now there was not a huge difference in the HF between Opis and Resolution but it was discernable. My speakers tend to be a bit on the dark side so I need a brighter sounding cable for my tastes.
So in the end I ordered 2 pair of Purist Audio Venustas. I understand that the Opis is made with gold and copper where as the Venustas are made with silver and something else I don't recall. This should give me the best qualities of the Opis with the addition of greater transparency due to the silver content. Guess I'll have to find another way to make use of that credit with The Cable Company. I don't mind that because by using their service and auditioning cables I really feel comfortable with my choice.
So in the end I ordered 2 pair of Purist Audio Venustas. I understand that the Opis is made with gold and copper where as the Venustas are made with silver and something else I don't recall. This should give me the best qualities of the Opis with the addition of greater transparency due to the silver content. Guess I'll have to find another way to make use of that credit with The Cable Company. I don't mind that because by using their service and auditioning cables I really feel comfortable with my choice.