I’ve now had the second 555PS in my system for a couple of days, and it’s still giving more and more. I have always known the ND555 is a fantastic source, but I have to say that with a second independent power supply it takes it to a new level. Over the last two days I have listened to a variety of my favourite artists - London Grammar, Sarah Jarosz, Porcupine Tree, Alison Krauss, Infected Mushroom, Alan Parsons, Agnes Obel… just trying some very different musical styles. The ND555 with a pair of PS555s just seems to be able to render everything I throw at it with poise, style, resolution, pace, and or course impeccable timing. I’ve not listened to every streamer at this price point, it I have to say I would find it hard to believe there is better out there.
I’ve not played with any of the more poorly recorded tracks yet, as I know these can sometimes be challenging to listen to in a highly resolving system, but I will explore further over the next few weeks and post an opinion in due course.
So, to answer the original question, the ND555 is very very good indeed.