The end of 2016 is really turning to sh*t electronics wise for me. After my screen my trusty Sennheiser HD 650 are starting to bite it. And they aren't even ten years old. I am using a dedicated AMP/DAC combo from Maverick Audio. Now headphones are quite subjective. Right now I am considering the Sennheiser HD 700 as a direct upgrade but choice is a good thing. So... Any recommendations or general advice around £500-£550ish?