It should be measurable. Then the decision regarding ""euphonicness" should be left to the "Chevaliers du Tasteson". This has been done and overdone, one's euphonicness is another's nastiness.
During the great capacitor shortage during Covid, Nichicon became very rare. And still is to some degree. In that time I bought all the above, including Vishay.
I was simply *trying* to say that I thought I was hearing a difference of the cap types, not the values. If I had matched the uF more precisely than 1uF+/-20% between the foil and electrolytic, there are some keyboard 'experts' who would start arguing there couldn't be an audible difference.
Depends on where it is and what it's doing. A signal coupling cap? Probably not. In some EQ topologies? Definitely yes.
Yes sorry I wasn't very clear. I meant a coupling cap indeed.
It's my own malapropism.Is this what they call the home hi-fi audiophiles in France??
A coupling capacitor on its own has no sonic signature. It has only when coupled with a receiving load. The effect depends mainly on the voltage across the capacitor, so for minimizing the effects, the value of the capacitor should be high, which results in a lower pole.The non-linear effects in electrolytic caps are about 10 times those of film caps, so a 1uF film cap should be compared with a 10uF lytic. A consequence is that the VLF response with lytic caps is much lower than with films, which can be a problem. That's why the global response of a unit should be governed by one set of caps (one for the LF point the other for HF point) of unquestionable quality, never lytics nor high perm ceramics.
back last century when I was working at a company with real instrument designers on staff, I attempted to get technical information from them about the inner works... I generally got the tilted puppy dog head response. A guitar designer would likely try to copy an old design (inside an old company) and maybe ask one of the friendly guitar amp designers for advice. Probably more influenced by size and cost, than absolute component sonics.
Tantalums may be unstable, may add distortion, and tastes are tastes, but... those 1073 from Neve, those u87 from Neumann, etc, have tantalum in the sound path. And leaving aside some controversies, for me (and most humans) they sound pretty decent, let's say it, they sound beautifull.
I agree regarding distortion, not so much about phase response.
What do you mean? Do you have a better method for transmitting signals from one stage to another? Do you suggest using servos around all stages? Or transformers?
). Or bipolar type. Or biasing scheme...
