A quick note here,
I got my HDP and Asgard today, right off the bat I noticed the HDP's headphone amplifier is better in terms of bass depth and pure amount but no by means is the HDP's bass bloated in anyway either.The song I used to do the test was Infected Mushroom - Vicious Delicious. This is through a Grado RS1 and I matched both amplifier's volume by trusting my ears. If I made the Asgard slightly louder, HDP still is more prominent in the bass department. I will give them both more time and hopefully the Asgard can improve in that area.
The right side of the Asgard is indeed hot but I can still keep my hand on it (borderline so it is hot). Heat wise from greatest to least would be right side,bottom side ,top side, front side, left side then back side. I'm impressed at the build quality, it really looks great and feels extremely solid. The manual says do not use this as a coffee warmer
Nuforce HDP is a DAC/Headphone Amp/Pre-amp with RCA input/output, 3.5mm and digital optical input - $449
Schiit Asgard is well, just an amp - $249
Keep that in mind