Interesting, I didn't even know about this cap, but I just ordered one. When I said Jupiter I was thinking of the HT beeswax caps. I think I'm going to draw the line at spending $100-$130 to put a CuTF here, but let us know how it works out for you! If it's a big improvement I may push that line back a little.
I think the Havana already sounds like a several $k DAC with the mods I've put in so I wouldn't balk too much at spending a couple hundred more. At least that is what I keep telling myself!
Where are the limits of it's topology? Inclined to believe that the strongest possible impact of CuTF is on the output section, becouse it is critical for Havana. But you never know...I am very, VERY curious!
So what about my dac now : starts to be really pleasant and it looks like I finally found the right balance/sound I was looking for :). However it's still too closed for me and I feel a lack of air & details. I'll receive vcap cutf soon for output and i still have to put WBT nextgen connectors so may be it will help. Didn't put rcore neither because don't know how to do but seems good for that according to what I read. To be continued so...
Get ready for the great adventure with CuTF!! After hundreds of hours of burning-in, you will really feel what you missed before. CuTF place there (to the output) gives life to all instruments&voices and transform the audition into something wonderful. It's incredible how much changes the sound stamp across all frequencies (I would say, decisively in the mid and low frequencies).
I love these capacitors!