I always figured "bedroom amp" was a bit hyperbole, like "urban assault vehicle" , but it gets the point across. I actually have had amps in my bedroom when I lived in small apartments and condos. I don't anymore, and don't need to play at "bedroom" volumes. But I still might call a small amp a bedroom amp, even if you have to crank it a bit to get the toanz. It's a figure of speech. No big whoop.