Tu devrais décrire ta config actuelle plus précisement.
Tu comptes le préamplifier avec quoi le power amp par exemple?
Tes effets, ce sont des pédales? Un rack?
“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