[Hey Nate, how was your trip?] 
  
Hey, it's a "special" amp, designed for xxxx phone (some Senn's, some Beyers, etc.).  Probably doesn't cost so much to design/build, even if for a niche segment.  And they can charge more for it as a specialty design. 
  
Actually, I've had pretty good luck using a cable to up the impedence.  I drove some AKG 271's very nicely out of the Lunchbox amp, with a 200ohm cable adapter.  Not the best of all solutions, but works well.  Still fondly remember that combo. 
  
All that said, I'm not getting this amp.....