I spoke with Andy once and he said my 16ohm Hotplate was fine with any Mesa at 8ohm…
I believe 160 watts was his rough safe limit for the unit.
I’ve used mine for decades and the only time I got a little nervous was running it with an old 200W Marshall Major.
Keep in mind, when you’re running an amp at 8ohm into a 16ohm Hotplate, it only sees 1/2 the amp’s wattage.
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