Beyerdynamic DT 990 PRO vs Sennheiser HD 560S

Both the Beyerdynamic DT 990 PRO and the Sennheiser HD 560S share open-backed designs. They also have broadly similar sound profiles, with the Beyerdynamic offering a bit more low-end, while the Sennheiser have a more even top-end, but some may prefer the high-frequency sheen on the Beyerdynamic. The Beyerdynamic feel better built and comfortable, though they clamp a bit harder. On the other hand, the Sennheiser have a lighter-feeling fit, so choosing between them may come down to your personal taste.