I know I'm a dummy load and shouldn't interject in things I don't completely understand....but wasn't this a 2 pill amp? Those numbers do seem a bit fantastical...perhaps there are some spurious emissions at play?I reinstalled it for more accurate numbers (as accurate as the meter(mfj-870))
Dk 3 watts is low 30, med 65, hi 100.
Peak 18 watts is low 130, med 260, hi 325.
Into dummy load.