Lumin D2 or U1 Mini

I am abot to pull the trigger on either of those 2 units.

Currently I have a Bluesound 2i feeding a Benchmarch DAC3 HGC. Very happy with the sound. As i am having a 2nd Hifi setup (active speakers) I am looking for a second transport.

I had my eyes set on the Lumin U1 Mini. However for a few Dollars more I can get a Lumin D2, which offer a built in DAC and also has a digital output.

What is likely timsound better or is the better propositio? The U1 Mini feeding the Benchmark or the 2.

I listen to Tidal Hifi, iTunes Music, my own Flac Library which sits in a Synology NAS, and I listen a lot to TuneIn Radio.

My Speakers are Dynaudio Sapphire driven by 2 AVM Monoblocks.

Thanks for your valued input.