Schiit Valhalla purchased directly from manufacturer.  All 4 vacuum tubes have been replaced 1 time with matched tubes directly from Schiit, and there is some active use on the replacement set, although they still sound quite good.  Metal outer casing has minor cosmetic damage -- see pics.  The bottom rubber feet would not stay attached on the metal so those are missing from it -- see pic of the bottom of unit.  Plenty of power to drive even demanding headphones.