Down to 20Hz it doesn’t seem to dip below 4ohms:

http://www.soundstagemagazine.com/measurements/axiom_m80v2/

Sounds to me like Emo knows it’s the protection circuit causing it since they are offering a modified version. I wonder what effect that has on the amp’s performance since you’d think they would just make the modified circuit standard unless there is some reason not to. I know of no other amps having this problem even Emo amps.

3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1