I love my Hifiman HE-500 to death but I can't bring it to work with me because it's an open-backed can. Now I'm in the market for a closed-back headphone that I will enjoy listening to for hours a day, and I want to find something that either sounds as close as possible to the HE-500 or will...

I just picked up a barely used pair of HE-500s today, and they sound fantastic. However, the left planar driver squeaks around the contact point of the screws on the metal holder. This video is pretty much an accurate representation of what's going on: https://www.youtube.com/watch?v=Di9TrctaMwk...

I have always wanted the Hifiman HE-500s but a couple years ago I got the HE-400s due to budgetary constraints. Now that finances are better and prices have come down quite a lot since the newer models have been released I am still thinking of making the switch. Before I do anything impulsive...