Maybe, but even if you just lay them out naked" and listen to them they're not very loud, either. ('Guessing here, based on my experience with the similar ones that I had....)
They don't make them for types that wanna "rock out," to be sure!
They could do with a dedicated mini-amp, but then, turning up the volume is easier and okay ... until you forget to turn it DOWN before you use it on another output source!
(My Pillowsonics haven't arrived yet! )