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Anyone tried Audyn Reference caps? I hear very little info about it. Reveiew at Humble site was very positive.
Maybe lower series of Audyn Plus would be good enough for me? Im asking because I need big caps - about 4uF at DAC outputs. Ive tested a lot of old caps, Russian MBGO, K75-24, Sprague in metal box (big), Siemens MKV etc. but havent tested any modern good quality caps.
I can only say that these big Sprague caps were the best for my tastes - gave great holographic sound and depth to music with good separation. They were only slightly creamy and lil softer sounding but I preferred it much more than MKV which sound dry in comparision and without that acoustic type of performance.
Caveat. My experience, plus that of my friends, is at a somewhat lower value, as DC blocking, input caps and about 1 uF.
I'm not sure what you mean by Audyn "Reference" caps. I have personally compared Audyn True Copper to Mundorf ZN and Russian K71-4 styrene. I have several friends who have compared them to many other caps. One of those friends also tried the Audyn Plus caps.
The consensus is that the True Copper caps are a big favorite of this bunch (although our little group hasn't tried as many or as exotic as Jon L has in this thread). I would describe them as not perfect but a very good balance, especially for a polyprop cap. One of their strong suits is bass (in fact, I found them a little too strong for my system, but others found the bass just right). The bass is full and strong and clear. At the same time, the detail and imaging are excellent. The detail and high frequency are equal to the K71 styrene, but without the cooler feel that the K71 provides. The mid range of the ZN is stronger, warmer by a little, but the mid of the TC is still quite nice. I would say that the TC is better balanced across the frequency range than the ZN. Finally, the soundstage of the TC is very nice, both wide and deep. I will warn that, you might find the TCs to be a little orientation sensitive. I know that not everyone believes in cap orientation, but I would suggest a careful experiment might be worth your time with the TC.
For the Audyn Plus, my friend says that he was very impressed for the money. The detail and soundstage were quite good, although not quite as good as the TCs. The bass was a little less and the overall sound a touch drier, but still quite nice. They have one other advantage, if you are located in the US, Canada, etc. Parts Express carries the Audyn Plus and you can get them quickly and for a low shipping cost. If you want the True Copper or other higher end Audyn caps, you have to get them sent over from Europe. That adds $30 or more to shipping and the stock of the high end caps is thin, even in Europe. It usually takes 1 to 2 months, plus shipping, to buy these caps unless you are lucky and someone actually has them in stock.
Good luck in your search.