Its currently out of stock at Oppo Digital which is the only place you can currently buy the HA-1. Due end of June now.
After supplies catch up with demand then perhaps some stateside dealers might carry the HA-1, but not Amazon, maybe crutchfield, MagnoliaAV for example.
I bought mine within the first hour, ha.
Edited by Maxx134 - 6/5/14 at 12:53pm