Sony has announced a lot of stuffs in IFA this year. Among them, the new XBA-Z5. It has a dual-BA + 1 dynamic configuration similar to the XBA-H3, but comes with newly developed transducers. To be honest, I am quite disappointed by the whole XBA-H1/H2/H3 series when I had a chance to demo them last years - finding them tuned in a very eccentric way and might not even consider an upgrade over the older models. While I really like the higher end full sized headphones Sony has made over the recent years (especially the MDR-1 series), their IEM remains far away from perfection. Let hopes the new Z5 can do better. No price has been mentioned yet.