Hi Jim,
I am in the planning stage of building a Cornet Octal version with CCS. I read from Angela that many people substitue electrolytics caps with ASC Polypropylene & Oil caps for less 'mechanical sound'. I am tempted to try that route plus they are cheaper than the equivalent Elna Cerafines. These caps are non-polarized and non-directional. The parts I am referring to are the 47uF C2, C4, & C10 (total 5). Do you see anything wrong of using these caps in the circuit?
I am not going to change the 10,000uF (C13, C14,....,C16).
Best regards,
TChung