Guys, from my conversations with Ron and Ed it sounds like there have been only a few isolated amp problems so try not to jump to conclusions, and they have sold a lot more new Ultras in the few short weeks than they expected to the point of needing to get restocked on cabinets as was mentioned by Bampson - the unexpectedly high sales is great to hear and over time I believe the PB/PC13 is going to become known as one of the very best subs you can buy regardless of price, the SQ is that good.
Receiver: Marantz SR7008
Source: Oppo BDP-83 multi-region, Sony BDP790 3D
Display: Sony 45ES on Silver Ticket 120" screen
Speakers/Sub: EMP Tek R55Ti, R56Ci, R5Bi, dual Rythmik L22's