Christmas at most.
omg that pic is just horrible... What a ghastly looking man!
Anyhow, there's been some really great reading these last 100 or so posts! I wonder if any of the more prolific head-fiers believe that impedance matching matters with the HD800. 120ohm clearly fills them out and can be pleasing to some. Some find it hard to find synergy with next to zero ohm output amps unless they use mods on the hp itself... Just wondering if ss amps that have an impedance output a little higher are better suited. I think the M-stage does and this seems to please quite a few of us. My experience is that they work better with higher impedance. (obviously this not the only factor involved with good amps but I think it is an important one.)
That's Brock Lesnar. He trains with HE-6's primarily as a portable. He carries speakers amps, DACs, and power supplies with him everywhere.
Regarding impedance output, I'm not sure that it's best to group amps and select them based on just their impedance outputs - goes for both headphone and speaker amps IME. The first thing that comes to mind is how dead sounding and bright the O2 sounded with it's less than 1 ohm impedance with pretty much every headphone I've tried it with. Take my DM Source output or other headphone jacks of headphone outputs on some studio gear that also have a very low impedance output and the difference is quite opposite. Neutral but without any of the flaws - except for hard to drive HE6 and planars.