I have found as a general principle never to invest in an all-in-one solution (speakers, amp, preamp, DAC, server, CD player etc.). I keep multiple references so I can alternative as and when I please. If you use a tubed DAC, e.g., any Lampi, you get a tube coloration. Nothing wrong with that. I love my Pacific! But, it‘s a coloration, nonetheless. All tubes impart a sort of rosy cheeked full bloomed sound, one we all love. My ARC Ref 6SE has that in spades. So, the only way to guard against that is to keep an alternate set of references.
For example, I use a Mola Mola preamp (with built in DAC, which is just the Tambaqui), with their solid state Kaluga monoblocks. The sound is about as far as you can get from the warm bloomy syrupy Lampi sound, so it’s always an interesting contrast. But, that’s the fun part of keeping multiple references, You learn to understand the colorations induced by various design choices.
It’s the same with speakers. I use horns (Klipsch La Scala), electrostatics (Quads, 3 pairs!), and dynamic speakers (Harbeth Monitor 40.1s). Each has a particular sound, some unique strengths and some obvious limitations.
So, for a server, I would do the same, Keep multiple, if you can afford to do that. Generally, I’d recommend investing in a cheap Intel NUC fan less chassis (which I do), along with something more expensive. Compare, and see if you really get your money’s worth with the fancier solution. It takes a while to do long term comparisons, but if you take the time, you learn a lot!