Story of upgrades so fair and what difference it made and things that happened, first things i changed where the Russian micro C13,C14 very straight forward, the sound changed in that the sharp some times hard top end smoothed out the highs where nicer to listen to.
Next thing i changed was the Jupiter HT Round bees wax 2.2uf x 600vdc some strange things happened with these, when i first switched back on the Dac the tube would burn very bright like a torch been switched on and then die back down to normal after 5 seconds, what happened as time went by on burn in around 350 hours it did not do this any more and just would switch on as normal, i put this down first time switch as capacitors breaking in.
Sound wise i love them, on a personal not i did notice a difference at 100 hours and then around 300 hours and then around 450 hours where they seem to settle in to a set sound.Difference in many ways more bass more highs more space in the music and the sound is smooth as silk and i can here a lot more detail in every way.
PCM56P-K chip what a pain in the ass this is to change when you have a capacitor the size of a Jupiter HT, slowly does it when taken out it tuck me around 2 hours yes that is correct, as i tried both the japan chips and the Korea where just crap , Japan chips where the best these did open up the sound more detail and more tight focused bass and better image.
One interesting thing that has happened the Tube 6835 bendix is at this stage not the best sounding tube , it is the 2C51 bendix? I think this will change with the next upgrade which i will be doing some time in the next week which will be the Resistors Tantalum & i think at the same time Clarity Cap ESA Range polypropylene 0.22uf 630vdc.
I have all the parts here for a full upgrades power section, Schottky Diodes C3D02060F Elna ROB TONEREX, just taking me time so i can get a good feel of what works and does not work, will take some photos latter in the week.
One more thing soldering, oh those little bunny's have solder from both sides which is a pain as when you go to remove a part the hole will fill with solder, do not put the end of the solder iron in the hole you mite over heat the track, get your self a set of solder tools.