Another new DAC: Audio Mirror

Also, if you are feeling stressed about tube life, you could consider the ifi idsd pro. I preferred the audio mirror to it, but did enjoy the ifi as well. It has the option to run either tube-based or solid state output stages, so you could go to SS when not doing critical listening.

Interesting about the ifi 
Is it easy to replace the tubes in the mirror dac ?

Super easy, but you have to remove the top panel. I keep my T3 covered with the top panel, but not screwed down.

I just got this DAC the other day. Sounds very nice so far. Here is a little video I made showing it. https://youtu.be/wGURiUTsGXo