Jupiter Caps in tube preamp application

when I first got the preamp it did a LOT of things well, with the exception that it was just a bit hard/forward in the midrange. Looking to mellow it out a bit.

Dear @jimbones  : Ok, you are looking for a " tone control " and that's exactly what the boutique/high end caps does it but if in the future you want true MUSIC not colored one then give a chance to Wima MKP 10 or FKP 1 models and you will be heavy surprised by, just non-colored high quality performance levels.

In the mean time enjoy what you have.

R.

@yes thats it a tone control

Dear @jimbones  : Good that that is what you are looking for to achieve your targets and this is what it matters.

R.

OK so I did the swap and it want all that dramatic. Sounds clear as a bell I wouldnt classify it as a tone control. I dont hear any shift in tonality or any emphasis is any one area except maybe a bit stronger in the low bass region. This may be due to a difference in cap value (approved by the designer). I guess there is a break in period hopefully not as long as teflon lol