Hello head-fi, I come to you for sage advice once again. I came here years ago for advice. Back then, I got reccomended the HD555 (for home use) and the Koss Portapro (for taking with me). My HD555's must be around 8-9 years old or something at this point, and they're still going strong. You all really did me a solid with that one. The Portapro's were also a big success in another way. I didn't end up using them all that much, hermit that I am. But my dad had a listen to them and said he quite liked the sound. So I got a pair for him as a christmas present. He uses them to watch tv late in the evening without bothering anyone. At some point one side stopped playing any sound, so I gave him my pair. Now that pair has the same problem, one side won't play any sound. So I want to get him some new headphones as a christmas present. He says he loves the portapro for how light and comfy it is to wear and how nice the sound is. He also describes it as 'cinematic' (probably since he uses it to watch movies a lot), which I can only guess comes from the open design. Do you have any reccomendations for similar headphones, perhaps with some better contruction? Thank you in advance, I know you won't let me down. TL;DR: Dad loves his portapros, but they broke. Wat buy?