Qudelix5K and be done with it. Perfect little dac/amp and very reasonably priced. If you should feel compelled to learn about how to EQ it's also got a 10 band GEQ/20band PEQ.

I use mine as my desktop amp as well as portable with my phone via LDAC. I have no idea why you'd bother with something more expensive unless you've got some seriously hard to drive headphones. It measures fantastic and does everything you could want all while being tiny.