Does Dan typically mark your order as shipped? I just see that it is completed.
To tell you the truth, I am a bit nervous if this doesn't work out. I just returned the Ultrasones Pro 900 as I thought they were really too dark for my tastes, but like the sparkly treble with my audio technica...and did enjoy the bass of the ultrasones. I am nervous because I want to stick with closed back headphones...and I see many on here recommend open back all the time (for good reason it seems).
I am still undecided on whether I should get the Schiit Magni or the Asgard 2. I really haven't seen anything in this thread about a comparison between the two (except for one short post).
The Magni will provide you with a little more power for their ohm rating, and will have a less colored sound - it's truly a great little amp for what it costs. I typically wouldn't go past 1 o'clock on the volume knob with my HE-400, so it will likely drive the Mad Dogs quite well too. The Asgard 2 is said to be a little warmer sounding. Plus, they've added a gain switch, improved gain stage and power management, and a preamp out on the Asgard 2, so it's ultimately a better and more versatile product than the original - and it has that nice aluminum finish over the Magni which is painted steel. You can't go wrong either way, but I'd say get the Asgard 2 if you can afford it and have the extra room.