From what I understand, transients demand large amounts of power even when continuous power demands are quite low, and therefore I would like to have high power on hand for headroom and clipping-free playback.
So, yes.
This is "somewhat" true, but you don't need
that much peak power. It's overkill for the M1s. You most certainly wouldn't have to worry about clipping, but you wouldn't either with a 100-150 rms, 250w peak @ 4 ohms amp.
Of course, nothing exceeds like excess
cheers,
AJ