Not too many Outlaw amps are made by ATI these days. ATI makes many of the Monolith amps, but not all. The best way to determine this is as I mentioned previously, by the blue coverings on the power transformer secondaries before they plug into the modules. Monoprice has pictures of the insides of their amps and show this. Which Monolith amps aren't ATI made? Outlaw's 2220 and the 5000/7000 amps aren't ATI but the rest are.