Knowledge Zenith (KZ) impressions thread
Aug 28, 2023 at 9:24 PM Post #62,477 of 63,916
graph-17.png
 
Aug 28, 2023 at 10:28 PM Post #62,478 of 63,916
Aug 28, 2023 at 10:56 PM Post #62,479 of 63,916
I had a KZ AZ09 Pro get lost in shipping, no status updates for about a month, then all of a sudden it shows as being signed and delivered. I never saw it. So I emailed KZ about it and they're saying 'it's signed for, enjoy your life' (their actual words). Pretty rough customer service...
KZ recently hire a specialist customer service (if you bought it from KZTWS), Judy@KZHIFI.com
from this forum alone, there are two or three people make warranty claims via judy and apparently pretty well taken cared for.

not sure on the warranty claim if you bought it via their aliexpress store
 
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Aug 28, 2023 at 11:02 PM Post #62,480 of 63,916
Wow, bright and shouty!
Yeap, I'm curious what will happen if an impedance adapter is added to this IEM, looks like it has the infamous 1kHz BA boost like the AS16 Pro etc.
 
Aug 28, 2023 at 11:03 PM Post #62,481 of 63,916
Wow, bright and shouty!
the third party graph comparison of these two

1693278103638.png


in comparison with the manufacturer published graph comparison,

1693278283197.png


*8k+ might graph might vary depend on the tools
but interestingly less bass, insertion/eartips difference?
 
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Aug 28, 2023 at 11:10 PM Post #62,482 of 63,916
the third party graph comparison of these two



in comparison with the manufacturer published graph comparison,



*8k+ might graph might vary depend on the tools
but interestingly less bass, insertion/eartips difference?

The pianist graph on Ian's and Paul's looked very different.
different insertion depth or eartips won't be that much different actually. Seems like production batch or different filter damper between those 2 sets.

pianist.png

Paul's unit indeed very shouty
 
Aug 28, 2023 at 11:48 PM Post #62,483 of 63,916
The pianist graph on Ian's and Paul's looked very different.
different insertion depth or eartips won't be that much different actually. Seems like production batch or different filter damper between those 2 sets.

pianist.png

Paul's unit indeed very shouty

Yeap, I'm curious what will happen if an impedance adapter is added to this IEM, looks like it has the infamous 1kHz BA boost like the AS16 Pro etc.

IF this graph difference turns out to be impedance issue again like AS16Pro, then KZ haven't properly learn from that case.
 
Aug 29, 2023 at 12:15 AM Post #62,484 of 63,916
IF this graph difference turns out to be impedance issue again like AS16Pro, then KZ haven't properly learn from that case.

most likely the differences is caused by impedance issue
 
Aug 30, 2023 at 5:12 AM Post #62,485 of 63,916
The pianist graph on Ian's and Paul's looked very different.
different insertion depth or eartips won't be that much different actually. Seems like production batch or different filter damper between those 2 sets.



Paul's unit indeed very shouty
not sure on who harpo is, but he have page in squig and posted cca pianist measurement

1693386668872.png


its getting a bit more consistent on how it looks like. more upper mids a treble than EM6L
and checking on another crin project

1693386861095.png


to note, these three iem have different driver setup so yeah, FR is not quite apple to apple
 
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Aug 30, 2023 at 10:14 AM Post #62,486 of 63,916
Can anyone who has a zsn pro/x help me? It's the only iem i have, brought it 4 years ago for someting like 8 dollars and it got me into researching about the topic since than. I've been trying to eq it for some time and it really surprised me about how far can it be pushed, considering it's stock sound. And now i'm curious about how it compares with other stuff after eq'd, regardless off the brand and price. I think it will help me a lot on my next purchase. I also like to hear your thoughts about the profile. (Tho, i don't know if the treble will work for everyone(the last 4 filter, to be specific). Do peaks change for different ears? because it's one of the best additions to this profile.)

If you don't want to download the txt:
Filter 1: ON PK Fc 790 Hz Gain 4.8 dB Q 1.200
Filter 2: ON PK Fc 2400 Hz Gain -4.4 dB Q 1.300
Filter 3: ON PK Fc 3300 Hz Gain 4.3 dB Q 1.900
Filter 4: ON PK Fc 4900 Hz Gain -7.0 dB Q 2.000
Filter 4: ON PK Fc 4000 Hz Gain 2.0 dB Q 3.000
Filter 5: ON PK Fc 5000 Hz Gain -2 dB Q 5.000
Filter 6: ON PK Fc 150 Hz Gain -2.5 dB Q 0.500
Filter 7: ON LSC Fc 150 Hz Gain 2.5 dB Q 1.000
Filter 8: ON LSC Fc 50 Hz Gain 1.0 dB Q 1.000
Filter 9: ON PK Fc 7200 Hz Gain -11 dB Q 11.000
Filter 10: ON PK Fc 10700 Hz Gain -7 dB Q 11.000
Filter 11: ON PK Fc 8900 Hz Gain 2.5 dB Q 11.000
Filter 12: ON PK Fc 13400 Hz Gain -6 dB Q 8.000
 

Attachments

  • ZSN Pro Resolute.txt
    629 bytes · Views: 0
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Aug 30, 2023 at 11:13 AM Post #62,487 of 63,916
Can anyone who has a zsn pro/x help me? It's the only iem i have, brought it 4 years ago for someting like 8 dollars and it got me into researching about the topic since than. I've been trying to eq it for some time and it really surprised me about how far can it be pushed, considering it's stock sound. And now i'm curious about how it compares with other stuff after eq'd, regardless off the brand and price. I think it will help me a lot on my next purchase. I also like to hear your thoughts about the profile. (Tho, i don't know if the treble will work for everyone(the last 4 filter, to be specific). Do peaks change for different ears? because it's one of the best additions to this profile.)

If you don't want to download the txt:
Filter 1: ON PK Fc 790 Hz Gain 4.8 dB Q 1.200
Filter 2: ON PK Fc 2400 Hz Gain -4.4 dB Q 1.300
Filter 3: ON PK Fc 3300 Hz Gain 4.3 dB Q 1.900
Filter 4: ON PK Fc 4900 Hz Gain -7.0 dB Q 2.000
Filter 4: ON PK Fc 4000 Hz Gain 2.0 dB Q 3.000
Filter 5: ON PK Fc 5000 Hz Gain -2 dB Q 5.000
Filter 6: ON PK Fc 150 Hz Gain -2.5 dB Q 0.500
Filter 7: ON LSC Fc 150 Hz Gain 2.5 dB Q 1.000
Filter 8: ON LSC Fc 50 Hz Gain 1.0 dB Q 1.000
Filter 9: ON PK Fc 7200 Hz Gain -11 dB Q 11.000
Filter 10: ON PK Fc 10700 Hz Gain -7 dB Q 11.000
Filter 11: ON PK Fc 8900 Hz Gain 2.5 dB Q 11.000
Filter 12: ON PK Fc 13400 Hz Gain -6 dB Q 8.000
Nice nice EQ good! Though let me help you discover more sound signature.

Currently, this is what your EQ looks like.
graph-20.png

If this is done by ear, quite nice, I'm quite amazed that you've reduced the peaks. Your EQ definitely sounds better, no doubt.

Though as an experiment, let us follow one researched target and some modified DF tilts.

Harman 2016
graph-23.png

The most pleasing Harman Revision that I've tried, it doesn't have the energy that Harman 2019 and it also has a more distinct bass shelf. Really liked this one, its perfect balance of bass, mids and treble for my ears, it will be quite a thing to know if it will be the same for you.

Base-line IE Neutral Target
graph-19.png

This is a target done by Charure, its a mix of Harman 2019 bass shelf and 0.8dB DF Tilt. Why is it done like that? To simulate speakers in a room with subwoofers, there is more explaination about the said target though I wont explain it here. The said target should fix the intensity of the presence region on the Harman Target, all IEM I eq to this sounds very nice, clean and adds nice depth to the music, though I highly recommend to try them on a smooth IEM like Quarks DSP, Tanya DSP or CCA Duo.

Max Res Target (Totl Tuning)
graph-21.png

This is a meme target that aims to simulate highly "resolving" IEMs (e.g Anole VX)

Aster Calm
graph-22.png

Target made by yours truly, a less energetic version of the Base IE Neutral, revised bass shaping to a glide rather than tuck, tilted the DF target to 1dB/oct after 2kHz. I mostly use this EQ to relax and chill with the music..it is not that exciting of an EQ, though it will give this clean midrange that will just let you enjoy the vocals.

Please see the attached files below for the PEQ.
And feel free to experiment other targets in my site.
https://xerus-db.github.io/

Upload the ZSN Pro X OK L file below, select target, AutoEQ and export.

Hope I somehow help you with your EQing journey, its really nice to see other people learning EQ, I also started at that stage, and its the cheapest way to try different sound signatures its also feels nice when you found an EQ that just clicks with you.

And let me tell you there are some cheap IEMs that I EQed that I liked more than an IEM that cost 2-5x more. So yeah, if you need an opinion on that.
I'm not saying that I liked my EQed ZEX Pro more than SeeAudio Yume Midnight....

Do peaks change for different ears?
> Yes, though variance mostly occurs in the mid to upper treble.
images.png

This is why we use diffuse field as a base when creating targets as it is close to the average human ear, we just tilting it to whatever the preferred is by a specific person, 0.8db tilt is the sweetspot for most people.
 

Attachments

  • KZ ZSN PRO X Harman 2016.txt
    649 bytes · Views: 0
  • KZ ZSN PRO X Totl Tuning.txt
    644 bytes · Views: 0
  • KZ ZSN PRO X Aster Calm.txt
    647 bytes · Views: 0
  • KZ ZSN PRO X Base IE.txt
    498 bytes · Views: 0
  • KZ ZSN PRO X OK L.txt
    13.8 KB · Views: 0
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Aug 30, 2023 at 3:23 PM Post #62,488 of 63,916
Nice nice EQ good! Though let me help you discover more sound signature.

Currently, this is what your EQ looks like.

If this is done by ear, quite nice, I'm quite amazed that you've reduced the peaks. Your EQ definitely sounds better, no doubt.

Though as an experiment, let us follow one researched target and some modified DF tilts.

Harman 2016

The most pleasing Harman Revision that I've tried, it doesn't have the energy that Harman 2019 and it also has a more distinct bass shelf. Really liked this one, its perfect balance of bass, mids and treble for my ears, it will be quite a thing to know if it will be the same for you.

Base-line IE Neutral Target

This is a target done by Charure, its a mix of Harman 2019 bass shelf and 0.8dB DF Tilt. Why is it done like that? To simulate speakers in a room with subwoofers, there is more explaination about the said target though I wont explain it here. The said target should fix the intensity of the presence region on the Harman Target, all IEM I eq to this sounds very nice, clean and adds nice depth to the music, though I highly recommend to try them on a smooth IEM like Quarks DSP, Tanya DSP or CCA Duo.

Max Res Target (Totl Tuning)

This is a meme target that aims to simulate highly "resolving" IEMs (e.g Anole VX)

Aster Calm

Target made by yours truly, a less energetic version of the Base IE Neutral, revised bass shaping to a glide rather than tuck, tilted the DF target to 1dB/oct after 2kHz. I mostly use this EQ to relax and chill with the music..it is not that exciting of an EQ, though it will give this clean midrange that will just let you enjoy the vocals.

Please see the attached files below for the PEQ.
And feel free to experiment other targets in my site.
https://xerus-db.github.io/

Upload the ZSN Pro X OK L file below, select target, AutoEQ and export.

Hope I somehow help you with your EQing journey, its really nice to see other people learning EQ, I also started at that stage, and its the cheapest way to try different sound signatures its also feels nice when you found an EQ that just clicks with you.



Do peaks change for different ears?
> Yes, though variance mostly occurs in the mid to upper treble.

This is why we use diffuse field as a base when creating targets as it is close to the average human ear, we just tilting it to whatever the preferred is by a specific person, 0.8db tilt is the sweetspot for most people.
First of all, i want to thank you for your reply. Starting with graphs; Yeah, i'm quite familiar with these except the last two. Actually i tried dozens of different signatures with eq, including iems and preferences. But i've never truly satisfied with any of them, so i started to playing with frequencies and i found what i'm looking for when i turned down the pinna gain. The timbre “magically” fixed when i did that, but after a short listening session, i understand that i slaughtered the energy for timbre. Since than, i'm trying to find a balance between the two but i just cannot leave the natural sounding timbre. So i wanted to share it on forums to hear what people think about it. looks like i'm gonna boost the pinna gain a bit to regain that energy. Because i really feel that something is off, songs just don't have the interesting factor they should have.

Ekran Görüntüsü (275).png


Even though i haven't heard another iem yet, i suspect that the ba on the nozzle causes that bad timbre, so when i turn the pinna gain down, it fixes. Like, try listen to Master Of Puppets with both sharur's target and my original profile, you'll hear the difference in the timbre. What i'm wondering is, if other iems have that kind of timbre too. Like, cca duo is even more heavy on pinna gain than sharur's preference but does it have that same bad timbre like on the zsn pro eq'd to sharur's?

For the treble: I don't think anyone can hear the treble as i intented. Since the treble cannot measured properly, i never autoeq after 6-7k. The resolution was heavily broken on my few attempts to eq after that. So my solution to tame the treble was removing the treble peaks. I used a tone generator for that those are my findings:

6500-7900 peak
7900-9800 slight dip
9800-11600 peak
13000-14000 peak

As you can see, it's totally different than what graphs shows. I also don't include the treble filters on graphs and just leave the treble as it is because of that. Including them doesn't add anyting other than breaking the graph. I suppose those ranges will be different for everyone and what i suggest to daily drivers of zsn pro(if there is still one :)) is finding their peak ranges and apply the eq according to them. It really tames the treble down.

Thank you again for listening to my profile. You really gave me the courage i need to boost the pinna gain :).
 
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Aug 30, 2023 at 3:43 PM Post #62,489 of 63,916
¡¡¡Te estás olvidando de Guns N Roses!!! ;-D

No puedo decir nada sobre Krila VS Duo, pero puedo decir algo breve sobre KZ Krila vs Moondrop Chu 2. El Chu 2 suena mejor. La Krila suena como si el bajo estuviera de vacaciones y los agudos invitaran a algunos amigos. Aunque el Chu 2 tiene el mismo problema, es menos perturbador que el Krila.
También con el Chu 2 entró el Hidisz MS3. No suenan nada mal pero no sé a qué se debe tanto revuelo. El HiFiMan RE800 Silver suena mucho mejor y lo elegí (precio de lanzamiento 599 euros) por 50 euros en AliExpress.
Could you compare Hidizs Ms3 vs Hifiman Re800?
 

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