Hey there, It's me again. No panic, it seems to be everything fine. No SID toast action or something else ;) But after some time I recognized, that one channel is a little bit louder than the other : ~1dBfs. It's normal ? I checked the soldering points of the resistors : all ok. My SID types : 8580 R5 - 3988 25 8580 R5 - 3588 25 Maybe the tolerance of the resistors or the different types of SIDs are the problems? If I don't know if it's normal or not, I have no ambitions to solde