Knowledge Zenith (KZ) impressions thread
Sep 2, 2020 at 5:25 PM Post #50,867 of 64,168
Got round to finally listening to the Zst (which I've never owned previously) and the new Zstx,
Enjoying both really, the Zst (Pro) came with a really nice pink cable, very impressed with the sound actually. Great for rock and metal.
As for the X I'm pretty much enjoying them too, more balanced than the T but lovely sound, great crunchy guitar for a bit of Black sabbath. :L3000:
 
Sep 2, 2020 at 5:52 PM Post #50,868 of 64,168
My C10 Pro should be delivered by Friday and looking forward to them and to see the actual difference to the normal C10.

Waiting patiently :) ! Happy with my Fiio FH3, but probably want to switch my iBasso IT00 for the C10 Pro or ZAX.
 
Sep 2, 2020 at 10:44 PM Post #50,869 of 64,168
I'm waiting someone to confirm if ZAX have real semi open back vents
 
Sep 2, 2020 at 10:50 PM Post #50,870 of 64,168
I'm waiting someone to confirm if ZAX have real semi open back vents

That's an IRL pic:
EgvUL7PU4AI49CZ.jpg


Zoom in:
opera_2020-09-02_23-52-43.png

It doesn't look fake "vents" to me.
 
Sep 2, 2020 at 10:53 PM Post #50,871 of 64,168
Sep 2, 2020 at 11:19 PM Post #50,872 of 64,168
That's an IRL pic:
EgvUL7PU4AI49CZ.jpg


Zoom in:
opera_2020-09-02_23-52-43.png

It doesn't look fake "vents" to me.

Agreed, they look like real vents.

KZ has some the exact same thing to previous models. A fine stainless mesh behind open vents.

They did the exact same design on the ED9 and HDS3, among other models.

AFB053B8-E1F7-41C3-AD55-C6B5EDD3980E.jpeg9E2A8D1F-70A2-4591-9A3D-33D9AAC36852.jpeg
 
Sep 3, 2020 at 12:55 AM Post #50,873 of 64,168
Yeah saw that picture the other day, hopefully its real semi open back goodness. Just want to get real confirmation but looks like real. I don't mind sacrificing isolation for air, big good trade off deal for me, of course maybe not good for someone looking for good passive isolation
 
Sep 3, 2020 at 4:42 AM Post #50,874 of 64,168
of course maybe not good for someone looking for good passive isolation

They have plenty of KZ/CCA models to choose from, but it's been literal years since the last open KZ so I don't see the problem.

I also don't see a reason to believe those are fake vents. I mean...You can literally see right through them into the inside of the IEM.
 
Sep 3, 2020 at 4:59 AM Post #50,875 of 64,168
They have plenty of KZ/CCA models to choose from, but it's been literal years since the last open KZ so I don't see the problem.

I also don't see a reason to believe those are fake vents. I mean...You can literally see right through them into the inside of the IEM.

A lot of chifi with fake vents that made me skeptical actually, for example trn v90. They still have vent but not as big as the "design"
 
Sep 3, 2020 at 9:15 PM Post #50,878 of 64,168
I posted here about a bad experience with my ZSXs awhile back, where the right dynamic driver blew after only a few weeks and started producing loud distortion.

I just wanted to say that I resolved the issue, in case anyone is reading this thread in the future and wonders about KZ's customer service.

I contacted KZ through their official store on AliExpress and they requested a video of the issue. The buzzing was audible in my clip, so they sent me a new right IEM free of charge. The replacement arrived last week.

Nice. Seems that their customer service is on-point.

I missed these. Electronic music sounds eargasmic on them.
 
Last edited:
Sep 3, 2020 at 9:37 PM Post #50,879 of 64,168
I posted here about a bad experience with my ZSXs awhile back, where the right dynamic driver blew after only a few weeks and started producing loud distortion.

I just wanted to say that I resolved the issue, in case anyone is reading this thread in the future and wonders about KZ's customer service.

I contacted KZ through their official store on AliExpress and they requested a video of the issue. The buzzing was audible in my clip, so they sent me a new right IEM free of charge. The replacement arrived last week.

Nice. Seems that their customer service is on-point.

I missed these. Electronic music sounds eargasmic on them.

You didn’t burn them in on full volume by any chance, did you?
 
Sep 3, 2020 at 11:12 PM Post #50,880 of 64,168
You didn’t burn them in on full volume by any chance, did you?

Who'd use full volume? No way that any driver is gonna handle THAT.

I did leave them for about eight hours with pink noise at moderate volume the night I got them, then I listened to music with them on a Fiio M6 at around 50% volume over the course of a week. When they failed, I hadn't used them in over a week and I'd logged barely any time on them.

I've burned in literally every pair of headphones I've ever owned, and even $5 ones held up, so it didn't dawn on me until now that the pink noise burn-in might be related. Yeah, I know it's possibly BS, but I like doing it.

For what it's worth, my KZ ZSTs were burned in much more aggressively and were fine.
 

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