So what’s the deal with the external cab out? I suppose it is a parallel of the 4 ohm out for the internal 2x12, so it’s basically like the Zinky Tonemaster trick of 4 ohm out to 16 ohm cab?
My little Orange loves to be dimed with the 8 ohm out into a 16 ohm speaker in half power mode. Lets you open up the pre which would be nasty at matched impedance but yields a more open/raw vibe.