Some interesting information is coming out on the very good Duelund CAST caps. I have seen pictures of one cut in half and it is pretty interesting what is inside. They contain lots of a plastic type substance and no paper or oil. Ya, you are reading this correctly.
This certainly takes nothing away from their good sound, but I had always thought they were paper in oil types? I think all the independent reviews list this cap as PIO and it is not apparently.
The new Jupiter caps are indeed PIO with copper foil. They continue to sound better past 100 hours and for electronics they are very special indeed. Love to hear some in my speakers once those values are out!
This certainly takes nothing away from their good sound, but I had always thought they were paper in oil types? I think all the independent reviews list this cap as PIO and it is not apparently.
The new Jupiter caps are indeed PIO with copper foil. They continue to sound better past 100 hours and for electronics they are very special indeed. Love to hear some in my speakers once those values are out!