OK guys some new experiments on my favorite killer caps.
The ones I bought previously were all 4.7uf/50V/10% made in Finland. Today, I decided to throw in a pair of 4.7uf/50V/5% made in Indonesia.
I have done some critical listening to some of my very demanding symphonies and orchestral work. I am surprised that for the first time I don't hear any congestions in those pieces. I am smiling. My evaluation standard is very simple - if the caps can handle symphonies, it can handle any other genres easily.
So I have to say no killer caps are equal. Not sure it's because of the 5% difference in tolerance or the origin of these caps. Whatever it may be, the result is surprising to my ears. Also the latest caps don't seem to have the initial roughness therefore no burn-ins needed.