Anyone have a good idea what one of these amps can do at 2 ohms? All I can find is 1 and .5 ohm. I want to strap 2 into either 1 or 4 ohms but don't have the electrical for .5 and that's be too much for my sub. They do almost 2x rated on 1 ohm according to the AD-1, should that hold true for 2...