I've got mine running at 1ohm. When the guys at the shop tested it, they said it was putting out a little more than 1100 rms. It pushes my 12w6v2's perfectly, and never gets overtly hot. Its also very compact, so if space is a concern, you can't go wrong. I've been pushing it pretty hard the past week, and it has yet to go into protection on me. From what I've heard I can expect it to last at least as long as my crossfire cfa602 has.