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Vintage Synth Repair

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Moog Prodigy: do capacitors model/type affect the sound?

2016-07-29 by gk.box@...

There are 6 electrolytic capacitors on the Moog Prodigy circuit board. And as I understand the schematics, 4 of them are in the audio circuit. And after 30+ years, I assume their performance is compromised. And since it *seems* to me that the sound of the synth has been slightly changed over the last time, I’m thinking to replace all electrolytic capacitors, using the same capacitance/voltage replacements, of course.


The question is, do the capacitors affect the actual sonic characteristics of the output signal? At least, in a case with Moog Prodigy?


My concern is that the modern capacitors (different series, different characteristics) will make the sound different. And I would like to keep the "original" coloration of the sound as much as possible.


I would greatly appreciate any input..


Thank you!


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