Sounds to me like a faulty amp to begin with or speakers incorrcetly hooked up, as Jason has eluded to a bit of confusion with the posts.
I have run ~2 ohm loads as a center on both my 1804 and now my 3808, with no problems, albeit not cranked right up but around 80db.
Yes, but could it support "Beer Crushing" levels at 2 ohm ?? I defer to your expertise verses my guesswork but from his wording, he sounds like he's pushing the limit pedal pretty hard.