Désolé je ne peux pas t'aider, tu devrais essayer de poser la question sur un topic général de la section lutherie ou acoustique ou poser la question à un luthier.
“The type of cap is not as important as the value of the cap, for guitar. In an Amp, your cap type is much more important, as the signal is being passed through the cap all the time. In a guitar, you’re not hearing the cap itself, you’re hearing what the cap is impeding”. Lindy Fralin