During the first half hour the L/C/R M80s were set to small at a 40 Hz crossover. For the next hour and a half the L/R M80s were playing in “pure music” or whatever Onkyo calls it’s version of Denon‘s “pure direct” with the subwoofer deselected.
I wasn’t sure which would put a greater demand on the amp section running 3 M80s crossed at 40Hz plus 4 QS8s crossed at 100Hz or running 2 M80s set to large so I mixed it up at little bit. When it shut down at 105dB it was just the 2 M80s set to large which it had already been doing for an hour and a half at 100dB.