Anybody can say how well these headphones scale with an amp versus listening to them straight from a laptop/phone? They're high sensitivity and low impedence so I wonder if there's any difference

My budget would be about 450 dollars for the both of them. I really don't know what to choose, this is  my first foray into somewhat hi fi headphones, well I've had the shure se 215's, they weren't really comfortable for me, but pretty fun sounding nonetheless. I'm willing to consider in ear...