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Knowledge Zenith (KZ) impressions thread

  1. HiFiChris Contributor

    Thanks for posting, buddy. Yup, unfortunately backs up my measurements (improved (less bright) midrange, much brighter treble - the difference in bass is, as I also noted for my measurements, that I block the inner vent as this is also the scenario that will happen in most ears (unblocked, the bass response is relatively similar to yours)).

    Btw, if you have any SpinFit tips, would you mind to measure the ZS6 with SpinFit tips (single-flange) and post the graph compared to the stock tips? I'd be interested in seeing that.
    hakuzen likes this.
  2. Holypal

    Well, at least the left and right channels are well matched. It is for treble lovers.
  3. snip3r77
    Does the cable fix the hot Treble ?
  4. vector84
    I wouldn't really expect reliably huge shifts in that regard - but some significant variability might exist in some situations or setups.

    Tips are probably more effective than cables at taming the hot treble :wink:
  5. BurningSkies
    I test with Reggae. I get no distorted bass even with good uncompressed modern recordings.

    Yep. They really look nice. I'm wondering if they'll look as nice once they kick around in my gigbag for a while. I'll let everyone know how the anodizing holds up.
    Fox2twenty likes this.
  6. vector84
    I would tend to think there's a decent chance a lot of the distortion on the ZS5s comes from the source.

    Most gear isn't specced to handle 8 ohms or less (fun with no crossover!)

    Impedance that low on stuff specced for 16+ (which is most personal audio gear) can cause thing setup in voltage limited mode to run in current limited mode instead... and depending on the performance of the specific hardware involved, that then can sometimes rather unexpectedly lead to either compression or distortion being introduced, or something like that?

    ZS6 having a crossover probably means a lot less of that happening.

    PS: An Ear Buddy solved all of my distortion issues, but I checked all my hardware to make sure the distortion was likely coming from an impedance matching problems - I found undefined performance <16 ohms (trending towards absurd distortion at the border of the undefined region) on every piece of gear I own that I had complaints about in regards to distortion with the ZS5.
    Last edited: Oct 6, 2017
  7. Podster
    I enjoyed your write up @Wiljen , for me I prefer enthusiast write ups compared to the more technically detailed ones as they are more relatable to me:beerchug: You said more than a mouthful as well on the "What you can get for $50 these days as far as mid to HiFi audio:wink: Shopped right one could have a pair of ZS6 with a Benjie S5 and have an excellent $50 rig!

    I have to agree with @HiFiChris , that satin finish red one is to die for:yum:

    Here's some serious bass reggae for you @BurningSkies :sunglasses:

  8. groucho69
    JB also has some great concert videos
  9. Fox2twenty
    @hakuzen cool graphs. Looks like Zs6 with foamies might be a go for me.

    Still in 4 more graphs/impressions if you feel like it. :D
  10. Fahim Foysal
    I am a noob here so it would be of great help if someone explained me something about frequency response measurements of iems. There is a large dip in frequency response of the zs6 between 4 and 7 khz. Isn't that a bad thing? Wouldn't the instrument between 4 and 7 khz sound more distant? Does this mean this isn't a reference tuning?
    Last edited: Oct 6, 2017
  11. hakuzen
    ZS6 tip rolling (revision)

    the good news. foam tips tame highs from 8kHz to 12kHz actually, so they help exactly with zs6 excessive peaks. they fix about half the difference with zs5, so zs6 might become enough "comfortreble" without EQ'ing.

    Ostry tips don't tame those peaks. they reduce other upper mids and highs, so the peak at 10kHz is even more noticeable in comparison. tried ostry 200, as it is, but also filled with foam.
    SpinFits neither helps.
    And convinced that cables won't help in this regard either (cable comparison in my next post).

    the word is "FOAM" for zs6, although i've not tried an A/B listening (your task..), and i'm not fond of foams.


    Last edited: Oct 10, 2017
    DocHoliday, rendyG, groucho69 and 4 others like this.
  12. vector84
    By most accounts the ZS6 tends towards a somewhat V shaped tuning? So definitely not reference.

    As for the deep cut, that's right around the sibilance zone, but at 4kHz you're already past most instrument fundamentals, I believe?

    Here's a neat chart that tries to describe what different frequencies do to various instruments :wink:
  13. snip3r77
    Seems like the "foams" settles the zs6.
    Also there should be significant mid bass

    Can you put 2 graphs together
    1) ZS5v1 stock and with foam
    2) ZS6 + Foam
    3) ZS6 stock
    If it's not too troublesome?
  14. randomnin
    Thanks, hakuzen! Great graphs, very useful. My conclusion is that ES3, ZS5 and ZS6 all have more uneven graphs than KZ ZST. The drop from 20Hz to 1kHz is bigger than ZST, the peak at 2kHz and the drop at 7 khz are still present. I guess I'm not buying any of these new KZs, doesn't seem worth it, given that comfort also hasn't increased. Pass.
    LaughMoreDaily likes this.
  15. SomeGuyDude
    They might not be for everyone, but I really do think a set of foams puts the ZS6 right where it needs to be. I'm faaaaaar from a treble head.
    nadezhda 6004 and Fox2twenty like this.

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