For the most part the build quality seems to be very good, but it is odd that the pads for the AD1000X do not fit these as they are a slightly smaller diameter and they fit lose on these. The band seems very nice across the top, but the wings sit nearly against them on my head, whereas on the AD1000X it seems to have more room, maybe due to a different tension on the top strap? Overall these are very sensative and do not seem to need any additional amplification, but I do not like the quality of the sound. There is nothing special about these compared to a lot of other headphones in this price range. You can get more detail from other headphones and there is hardly any bass. I prefer the DT770 as a closed back alternative. Even the AD1000X seems to be more dynamic and has more low end. The A1000Z always seemed to sound veiled and lacked quality compared to others in this price range (HE400i, HD6xx, DT880 etc.). I had pretty high expectations for these and they were quite the let down.
sacredsunderHow strange, My pair has much more bass than my AD900X , AD2000X... Do you got them from drop? I found 1000z to highly improve bass dynamics with good dacs.