hd600 hd700, 380pro, dt990, dt800, dt1770 just to name a few. I had the 1050 when I first got the DT1770's and it was a beautiful combo. I prefer semi open or open cans but because of noise I had to go for closed. It powers anything and has a really beautiful clear tone.
I kept it next to me on my desk since it's form is super friendly to be near you at all times. not big, slim and small footprint. The volume dial is very big so any time I needed a quick change I just reached over and adjusted. It never hit's end...its a dial that just goes around and around in any direction which was fine by me.
Only reason I no longer use it is because I wanted to use passive speakers with my set up which is what I am doing now.