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Audio innovations 500 capacitor replacement

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Hello, I'd like to know if someone can give me some information about capacitor brand on the ai500 (see picture). I want to replace them because they are 30 years old and I want to preserve the original feeling of the amp.
I found the black capacitors as Nippon sm series and I ordered them this evening.
Someone can give me some information about the violet/white axial and the the 2 orange with the Germany (Siemens) word?
Many thanks in advance
Gianni
 

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