Guys, thank you all for your answers. By the way. Neumann used polystyrene capacitors in U47, also. It is nothing to put old C1 back, and everything will be as before. But I like the Duelund a bit better. Add: Duelund 400Volt are not crossover capacitors. This is the real signal capacitor( read the info on Duelund's site). I guess I'll say something seditious for some of us here. I decided to try other types of C1, precisely because I did not like the color of the high freq-s with stock C1. I do not care how much it costs a capacitor, if it works fine for me. I just wanted to share my experience. To sale good mic for 3 new modern mics, you said??? It's not for me. I like my mic. But for me its just the tool, not the icon. I always try to get better results with my gear.