I remember looking at headroom figures at one point or if the wattage doubles when going from 8 to 4 ohm loads.
This is only true if the amp is designed to operate at 4 ohms. otherwise it will be maybe 70% more power or somewhere around there... not 100% more power...
Call axiom and ask what the minimum impedance of the m22's is. They don't have an impedance graph posted for the m22's... If the 22's don't go below 6ohms then no worries... With the M80's they have a drop to 3ohms at the lower end of the frequency range. i would guess the 22's would have a similar drop, but only by 1 or so ohms, not a reduction in impedance by half... still a ways away from 4ohms...
