I have changed the values of the C26P,C24P,C38P, C32P in 0,47, it gives in my opinion a more detailled sound. Are there more builders who have expirimenting with these kind of changes?

Which version have you build? I use Kemet Gold Max 47nF and they're great in version 1.1.

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I have build version 1.1, the type of difference in sound I can hear is that with the the values of 0,47 that it faster, more detail and the lower sound warmer.

I have used the Wima capacitors of Farnell.

This is the first time that I have build a active electronic part for music, I have more experience with loudspeakers