Totally,
I have in my truck a 275r on sub, 250r on midbass and a 150r on tweets/ rear. My repair guy told me he has heard of people clamping these to around 1600. That said, I'd put money on mine never, at any point of using it, even on the loudest tracks, puts out anything near that much power. I just don't need it.
I do love the old promos in your pic. I hade two of the 50s. My first quality amp was a 2150am? It was a 75 x 2 and I remember being in high school raving of the sound quality difference it made on my mtx truck boxes in the back of my hatch. L O L