Knowledge Zenith (KZ) impressions thread
Oct 6, 2017 at 6:51 AM Post #22,877 of 63,916
This is a neat little piece.

From my destructive tampering on the ES3, this unit related deviance looks rather like it might relate to some tuning points:
  • bass vent coverage (excess glue was responsible on mine)
  • foam seating depth in the nozzle
Adjusting those points, I was able to get my ES3 to match across 20-5,000 Hz or so pretty tightly.
true! now i remember your tips about ES3.. i'm going to check those bass vents right after measuring zs6, and shall measure them again. thanks!! =))
 
Oct 6, 2017 at 7:00 AM Post #22,878 of 63,916
37473029776_d27348ff65_z.jpg


36851850353_8a464d7e1e_z.jpg


37262728610_a084826090_z.jpg


Only had a few minutes with these last night, but I'm already pretty impressed. Definitely a step up from the ZSTs I've been using...
 
Oct 6, 2017 at 7:09 AM Post #22,879 of 63,916
Would someone be able to provide me with the diameter of the ZS6 nozzle? I have a pair on the way, with upgraded cable, and want to make sure I have some good tips to try out with them.

best I can measure 5.4mm (corrected - measured wrong)
 
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Oct 6, 2017 at 7:11 AM Post #22,880 of 63,916
ZS6 (green).

calibrated raw frequency response, not compensated. stock cable (no mic), thick silicone tips, deep insertion (these tips suffer a bit of highs roll-off after 12kHz).

ZS6_FR.png

comparison with ZS5 v1 (gray).
same conditions, averaged channels.

ZS6_vs_ZS5v1_FR.png

it shows the same big peak at 9kHz and 11kHz than appeared in Chris' graph. most differences between the graphs are due to Chris' graph were compensated, while these are raw.
oh, man, that's 9dB higher than zs5 peak (at 11kHz). :frowning2:
 
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Oct 6, 2017 at 7:14 AM Post #22,882 of 63,916
ZS6 (green).



ZS6_vs_ZS5v1_FR.png


it shows the same big peak at 9kHz and 11kHz than appeared in Chris' graph. most difference between the graphs are due to Chris' graph were compensated, while this one is raw.
oh, man, that's 9dB higher than zs5 peak (at 11kHz). :frowning2:

Wow does that validate what I found with the EQ settings. I couldn't have hit it much closer if I tried. 8kHz at -6db and 10kHz at -8db is pretty much spot on.
 
Oct 6, 2017 at 7:31 AM Post #22,884 of 63,916
The Ostry tips do lower the volume slightly but I didn't find any loss in clarity. Granted, my first tests have been focused around the treble tuning and I have not had a chance to do extensive listening with them yet. That opinion will probably continue to evolve, but I found the warnings on both volume loss and sound quality decay to be over-stated.
Let us know if you test them more. At now, i want to wait and see how my pair perform, before order that kind of tips, but understand better how use them affect sound may be very helpful.
 
Oct 6, 2017 at 7:43 AM Post #22,886 of 63,916

This is correct, I went back and rechecked mine and it is 5.4 - not 4.4 as I had previously measured and admittedly trying to hold a ruler over the tip is probably not the best way to do it. Next time I'll get out the dial micrometer.
 
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Oct 6, 2017 at 7:43 AM Post #22,887 of 63,916
They seem a jewel

I normally would have gone for the black ones, but the red ones were on Amazon Prime, so free two day shipping...it seemed like a good way to go since GearBest takes a while to ship (still waiting on my ZS5's!). But yeah, the overall feel/look is really nice. My end impressions will be different than most because my end use is on stage or in studio rather than home or critical listening. So, a different kind of 'demanding'. Loud rooms with hundreds of people and with full amps and drumkit. There will be less 'eq' involved for me and more actual mixing which is something that the home listener doesn't have control over. So if the hat and cymbals are too loud, I just bring them down a couple DB on my personal aux mix.

These do sit 'proud' of your ears a bit, so they're a bit more noticeable than standard IEMS, but I don't think it's in a bad way. I also don't have any fit/comfort concerns with these. I dropped 'em in with the standard medium tips for about 20 minutes and they were fine. I'll switch over to large foam tips to perform tomorrow.
 
Oct 6, 2017 at 8:23 AM Post #22,889 of 63,916
The Zs6 has much tighter and more articulate bass than the Zs5. I have not found the distortion that was present in the 5s to be there in the 6. That is one area they definitely got right on the Zs6.
 
Oct 6, 2017 at 8:27 AM Post #22,890 of 63,916
37473029776_d27348ff65_z.jpg


36851850353_8a464d7e1e_z.jpg


37262728610_a084826090_z.jpg


Only had a few minutes with these last night, but I'm already pretty impressed. Definitely a step up from the ZSTs I've been using...

While I'm usually all in for green shells (*unintelligible mumbling and grumbling* you, GearBest, for sending me the black instead of the green ones), I have to say... oh my goodness, those. Red. Shells. Look. So. Beautiful!
 

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