Nobody says an amp rated at 1 ohm cant go below 1 ohm, they are not supposed or recommended to. We dont tell people things like that here since in the wrong hands it can cause damage to amp, electrical system, etc. That is just like saying a BL can do more than 1000 watts, yeah it can but is it recommended no (it depends on a lot of things). If your gonna throw information about an amp playing lower than what it can then give reasons on the advantages and disadvantages of doing it. Just cause it is playing fine below its normal ohm load does not mean it will do it forever, I had a Memphis amp that I ran close to a year at .5 ohm and it finally gave way with the proper electrical so no all amps will not survive being ran at .5 ohms for a long time.