Yeah not talking about them trying to make power at low ohm loads, more like they arent constantly going into protect or shitting themselves. A lot of amps in other lines would just cut out at that impedance when driven slightly hard.Watch the video. They actually make less per at .5 than at 1 ohm. Sweet spot seems to me would be running into 4 ohms for 2000w at 91% efficiency. There cheap enough that buying extra shouldn't be so much of an issue if you're planning this sort of build.