Z5 was like 500usd and the z1r is 2000 usd? I demoed the 10000 and z1r and owned two z5s. 10000 > Z5 > Z1r.
I redemoed the z1r, U18 , Hifiman 2000 , Solaris, and a few Fitear iems and hands down the jvc sounded the best. Seperation, details, dynamics, tone, depth, sound stage goes to the jvc 10000.I'm with you on both these counts pal. Have lived with my FW10K for a couple of weeks now, during which my U18+dream duet combo found no air time. Demoed the Solaris in between and can't imagine any reason to get it. https://www.head-fi.org/threads/victor-ha-fw10000-10th-anniversary-model.891366/page-8