Mundorf SGO, Jantzen Superior Z in those values I’ve used I thought where smooth later I bypassed them with the Dueland 0.01 silver bypass cap that elevated both of them.
In those values some can be very large as you know.
teck
Softest, smoothest sounding capacitors you've tried?
Since I'm going for a very vintage sound (my preference), what caps have you tried (speakers or coupling) that struck you as super soft and/or smooth sounding (which would include the effect of being very low distortion). Resolution's irrelevant here. I need large values (2.2uF and 3.3uF), so Russian jobbies are out (already tried them years ago -- they were "OK")