Update from Dany on 60V vs 48V....
"Well, i guessed my first positive observations about the 60V power supplies wouldn't be that easy to pinpoint in a comparison when i compared those to the 48V power supplies. To my suprise it was actually easy! I didn't have to change from the 60V supply to the 48V supply again and again (as with some other upgrades from other brands) to know what a difference it makes. Making this review easy to me.
I first played with the 60V supply and then switched to the laptop style 48V supply. I wasn't prepared for the difference it makes. While the 48V supply on the Maraschinos was very good, it seemed i missed a little bit of weight to the music when i switched to those again. The 60V supply gave me that. I could live with that alone but there was more!! first thing that strikes is that there was way more depth in the music. Especially bass notes and mids were so natural and with even more fluidity then before. Switching back to the 48V supply again and the same recordings (at the same volume of course) seemed a bit flatter and less organic. With some adjusting on the ears i loved the 48V supply again, i actually could live with it. The Maraschinos with the 48V supplies are still very good. When i switched once more to the 60V supply it was obvious that paying that bit more for the 60V supplies is a good upgrade soundwise. A few more jazzy songs were played before i called it a day and it was obvious that the mood in the music gave a bit more warmth. And low notes were nicely controlled leaving voices in the middle of the soundstage. The layers in music were even more organised and lifting that veil that makes every nuance come through. Gosh, i never took for granted these 60V power supplies could do that, but they just did.
Since i listened in the evening i didn't bother taking pictures between the different power supplies. I will take a few during daylight and post these because not only soundwise it is an upgrade, they also look nice and have a quality finish to.
Conclusion: The 60V power supply adds to the benefits of class D amplification on the Maraschinos. Mixed with the organic nature of tube amps makes it is really worthwhile. Not only hard to drive speakers benefit from these supplies."