I only had one amp fail in more than 50 years - my Peavey 600-watt stereo, powered mixer. Since then, nothing died, regardless of how hard or many times it was turned on and off.
Good luck,
Gary

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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)