I don’t think they are in the same category. He5se comes from HE6 lineage, and is harder to drive - expects you to have a good, decent powered amp. With a good amp, clean bass with a good presence , very good details. 560 was similar to the Sundara. Easier to drive, very neutral, but not as impressive in my opinion. Neither headphone is in my collection though. Adorama seems to put the 560 on sale fairly often too. I’ll post it if I see it in their email blast.