I’ve seen that video before and it makes me smile. Not that it’s comedic, but because when I started my audio journey, I had twenty watt Singer(?) amps. By the eighties, you had to hundreds of watts per channel and now if you look at some of the uber high end amps, they put out over a thousand watts a side!
And here I am with 90 dbs speakers that rarely go over 90 db and an amp that puts out 250 watts a side.