Solid state monos here: on and idle about 6-9 pm , listening about 10 am or so, that is my laser beam zone, where the sound just lasers my ears with clarity and envelopes me with perfection.
same with pre and spinner, on and morning listening, there is a huge difference from initial “on” and the 12-20 hours at idle to warm.
the odyssey strato amps take about 5-7days……yup days, but worth the wait.
clariy, bass, crunchy Mustaine mids!