I hope that I will not be disappointed. But I shouldn't, in the end it should still be the Sony sound that I love, only in a better version. For me, streaming is key, this is the reason why I didn't look at the first generation of WM series. I really like the ZX-507 in terms of its sound. So much that it replaced the much more expensive Shanling M8. In addition, I have recently noticed that it sounds noticeably better for me on the low gain setting. Better soundstage and generally softer, more analog sound. Low gain plus vinyl processor + MDR-Z1R and I get an extremely musical and fatigue-free sound that is not boring but engaging.