The JPS has more neutral, transparent a detailed sound.
The Venustas has warm and rolled on top sound.
Check the C1 Posite Feedback review.
http://www.positive-feedback.com/Issue29/dynaudio_c1.htm
You can also contact to the writer. He strongly recomend the JPS for the C1.
Also you can see that it´s very difficult to find used JPS Superconductor 3. That means that it is an excellent option.
If you don´t want to spend a lot of money, move to the Ocos speaker cable. Dynaudio still use and recomend it.