I don't know who will do the critiacal listening after the ouzo starts flowing.
You might even like the NSD-Rudi combo better than the Stockholm-SP.
I was curious as showing the two side by side,
@rosgr63, I think the icing on the cake is here CuTF!
Here is what I found in a review: "Are CuTF V-Caps too expensive? Some say yes. As a part-time modder, I say no. ….in fact, I think they’re a bargain – considering what they do for a sound system. What else can you spend your money on that will transform your music so dramatically? Certainly not tubes and interconnects. The CuTF is worth the price. If you have mediocre equipment, the caps will take the audio quality to an amazing level -- if you have high-end gear, be prepared for a trip to the moon. These caps do not disappoint, and even if you start small, the benefits are huge" (Roger Robles, about V-Cap CuTF).
At first, after I received Havana over 2 years ago (wasn't upgraded at all), I found it lacking in the resolution section & micro-details. It was mediocre as possible in these two chapters. These capacitors did little wonders, indeed.
Havana react VERY positively to Black Gate electrolytic capacitors. They are the best option in the electrolytic area, the only problem is, they are'n cheap (Elna Silmic are at least 75% the price at which you buy today BG). I have replaced Elna Silmic-I, Silmic II and Cerafine with BG "FK", "F" and "N" series (on the digital section) and the results are clearly above Elna. BG give to sound attack, superior texture & resolution, but also more micro-details and turn the audition into something credible and wholly enjoyable on the level of coherence and musicality!! Continue to believe as BG, V-Cap CuTF (put both on the input and output section) and problably the japanese "K"-grade chips, are from afar the best upgrades for this DAC!