Ok, i've partially solved the problem. I was not focused and i had forgotten the capacitor of 22pF added in parallel on R130!
It worked like low-pass filter, cutting the noise. The snare drum seems good now, but the toms no more. They have a sort of granular noisy tail now... https://soundcloud.com/maxibi/yocto-test-3 https://soundcloud.com/maxibi/yocto-noisy-toms