Loved the new Z7 on demo at RMAF on days 2&3. Had two listening sessions totalling some 45 minutes. It is a slightly dark phone similar to the MA900, but cleaner in all regards. Treble is better extended and smoother, bass is more impactful and textured, though certainly elevated in volume. If you know me, you know I don't like heavy bass phones. This one isn't, but it does have a strong presence. The soundstage is similar to MA900s as well due to the angled drivers. It is a little smaller due to being closed, but certainly still at least a medium if put on a scale.
The cans are average in weight for a full size dynamic. The pads are soft and well sealing, not sweat inducing, and the clamp is secure enough to hold in place, but not remotely painful.
Nice job, Sony. It is going to be hard to resist buying one.