After waiting for ages for things like OEM replacement headbands to reappear for sale on the beyerdynamic USA website, I finally emailed them to ask when they would get parts in. It turns out those parts _are_ available, on some completely unlisted authorized service center's website, called...

I've got some somewhat unusual requirements and I'm hoping folks can point me in the right direction. For like... a decade or so now, I've used my DT-770s as my primary work headphones. And while they are supremely comfortable, they sound only... fine, and the absurdly long cable is a huge PITA...