Traditional logic for tube amps say to never turn one on without a speaker cable connected to a cab/speaker.
But I read in the manual for my MkII that it goes into "auto-standby" mode or something when a cabinet or guitar is not connected.
Is this how we're supposed to use stuff like the headphones or XLR out without the cabinet connected? I want to try, but don't want to risk blowing my new head. Pretty sure the answer is "yes", but wanted to confirm that it was safe to do before I tried it.