I've seen the Sennheiser HD 280 PRO for under 80$ once in the U.S, but right now it costs a bit more if you just check amazon. Maybe you'll find it below 80$ elsewhere. A relative of mine had them and they're already burned in. They close around your ears very nicely, they have good isolation...

I've seen many people praise the M50 and saying it's one of the best headphones for 100-150$, but are there any other ones worth buying in that price range?   I'm looking for something that has a balanced or V signature maybe, a bit of punchy bass (not overpowering), good mids, good treble and...