I have a set of Sennheiser HD-6XX and HIFIMAN HE-4XX. I can wear the HD-6XX a long time as they have an oval shaped ear pad. The circular pads on the HIFIMAN's are a bit small for my giant ears. I am considering buying the Focal Elex' but am unable to find specific size / dimensions of the inside of the earpad, as they are also circular. Any recommendations or experience similar to mine, I'd greatly appreciate your help.