Dac selections

All are excellent choices.

Alternative to these could be RMI ADI 2 Pro or Teac 501.

Lots of great DACs out there.

Mytek is bit further back from the front row seating presentation of the other two but not much in it.

Benchmark is robust and will handle everything you can throw at it without flinching, any input, any PCM sample rate, and any cable will convert perfectly with their punchy front row sound - as long as the source file is the same it will sound the same (as the upsampling in Benchmark’s FPGA is as audibly equivalently as good as you can do in software like Roon. Only thing you could do externally is a heavier slow filter to roll the treble.)

Mytek does MQA. Personally I don’t like the distortion that MQA adds and don’t use MQA even on my fully MQA devices but that might be a feature you would consider.

The Prism Sound Callia, (check out their web page)  As a side note, when i was going through the process of choosing a DAC i looked into Mytek as well and was close to making it a final choice.  About that time, i read about a buyer who had tried numerous times to contact Mytek about his DAC malfunctioning and wanting to return it or get it fixed. Even after 2-3 months he still had not had a response from Mytek.  My thought then was no customer service equals a no buy..  Some said they worked out of a small building and were overwhelmed, either way it was a no brainer for me. So i bought the Callia. Now, since then, and only recently i came across a review for the Lab 12 Dac1. Dont get me wrong, the Callia is a fine DAC and one that i am happy with and even though the review says the Lab 12 is an outstanding DAC i still hesitate to let this puppy go. Having said that, I still believe the Lab 12 Dac is going to be my next target.   

+1 @nekoaudio -- What DAC are you using now and what aspects are you looking to improve upon with the new DAC?