After some research for TubeAmps that are good for low impedance headphones, I cut down the options to these 3:
Schiit Vali - http://www.head-fi.org/t/685162/new-vali-schiit-amp
The Aune T1 being a DAC/AMP, and I'm not totally sure if it's a tube dac and solid state amp, or tube amp...
I use only low impedance cans as you can see in my sig
How do they compare? I'm searching for my first tube amp, so they should deliver the desired tube sound :)