Thank you for the help! Do you think these headphones need an amp? I would use them mainly on my Macbook Pro (mid 2012) and occasionally on my iPhone 6S Plus. Admittedly, I don't know anything about amps and when they're necessary.

Hey! I'm a proud owner of a pair of AKG K240 and I love how they sound and feel, but unfortunately they're open and they're starting to get difficult to use in my crowded office (both because they let too much sound in, and out).   I'd like to find something that is a bit more closed, while...

Any other ideas?

Thanks to both of you, that's some great advice! I think I might be able to spend a little bit more than that. Do you know of anything good that costs around 100€ (120 USD)?

Hi, I'm new to this forum. I have had a quick look around and I think this might be the right section where I can post this thread. I apologize in advance if it's not. Here's my story:   I broke the jack of my Sennheiser HD 408, a pair of headphones which I always used at home on my PC. I...