I suppose half of the power is lost when using 2x2 coil arrays, so intensity level 14 on M1 with 2x2 coil arrays should equal intensity level 7 on M1 with a coil pair?
Bon wrote on this forum:
“The 2x2 coil arrays are easier to use, and may, or may not work as well, depends on the person and the injury, but they work better with the model A9 or model C5 than the model M1.”
I wonder why 2x2 coil arrays work better with the model A9 or model C5 than the model M1 because the power output of the devices should be the same?