i belive the most one did was 1380 at 1 ohm and yes its 1 ohm stable.....//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
"running the amp in one ohm will shorten its life". those are the words of a tech at jbl.
im not the smartest, but i would recommend 2 ohms minimum. the higher damping factor will make your bass sound alot better and put less stress on your electrical system.