Seems like the ZSE was unburied lately... I got curious about the latest impressions and went to pick my ZSE that has been in the "KZ drawer" since last autumn and rocked them all day yesterday.
These are weird curious little IEMs. I find them dependent of everything. Tip dependent, source dependent, mood dependent, musical stile dependant... I get a lot of mixed feelings about them, really.
When I got them, I went to pick them up at the mail station and tried them with their standard tips (the black starline) and with the Benjie S5, and out of the box I found them great. Fantastic mids, good aggressive punch but not as strong as the double dynamics suggested, smooth but accurate treble, rolling off in a close signature to the original ATE. I thought I had an updated version of the good old ATE (I really love the old first version ATE) in my hands. Got home, connected them to the FiiO x3II and... the magic is gone...
. To a Topping portable amp, and... nothing to write home about. Listened to various musical styles and the same dull sensation. Tip Rolled them and with foams the good mids were gone. I don't remember more details, but I got unimpressed with them...
Yesterday I used them with the very same settings, black starlines, Benjie S5 with Flac files, and hey, they're good. Tried them on my phone (Honor 8, nothing special), and... they're rubbish. Tried them on my DIY desktop amp (Grado clone), and they're bad. Same tips, same files...
See, when they are on they're best behaviour, they excell the old ATE. But the ATE plays with everything you throw at them, considering you have the right wide bore tips. The ZSE does not.