Knowledge Zenith (KZ) impressions thread
post-13807589
Post #24,061 of 50,624

kokakolia

100+ Head-Fier
Joined
Aug 14, 2013
Messages
187
Reaction score
77
Joined
Aug 14, 2013
Posts
187
Likes
77
I still like the Solo2. :triportsad:
The Solo 2 is genuinely good! How else would Beats still be relevant? I just wish they weren't so pricey...

Something like a discontinued JBL S300 is only about $30 and it's "just as good".

That's another shockingly amazing deal.
 
     Share This Post       
post-13807594
Post #24,062 of 50,624

Viber

500+ Head-Fier
Joined
Jan 28, 2008
Messages
681
Reaction score
511
Joined
Jan 28, 2008
Posts
681
Likes
511
I was planning on doing the foam mod to 1 or both BAs. But after my ZS6 arrived and I finished BI, I found them perfectly fine. No treble cannons, no sibilance, and no fatigue. And I'm treble sensitive - the stock ZST was like a knife in my eardrums.

Even with the stock Starline tips they sound great. Foams sound even better (at the expense of some sub-bass). I tried to tape the bass port and didn't like them that way (plus couldn't take the driver flex). They are the best KZ IEM by a wide margin, even when compared to the ZS5 v1..
haha, that's great. So we agree on ZS3,ZS6 and ZS6 vs ZS5 v1.
 
     Share This Post       
  • Like
Reactions: Slater
post-13807600
Post #24,063 of 50,624

kokakolia

100+ Head-Fier
Joined
Aug 14, 2013
Messages
187
Reaction score
77
Joined
Aug 14, 2013
Posts
187
Likes
77
Can't you stop? If you seriously think they are so much better than KZ IEMs that's great but please take it to another, more appropriate, thread. They seem to be $40 generally anyway, not $25. The only ones I've seen at that price are on eBay, being sold 'without retail packaging' by a Chinese vendor with negative feedback for selling fake Sennheisers. 'Nuff said
The sale is gone! Yeah they're $40 on Amazon now. It's not a huge bargain now.
 
     Share This Post       
post-13807604
Post #24,064 of 50,624

bjaardker

1000+ Head-Fier
Joined
Nov 11, 2009
Messages
1,057
Reaction score
707
Joined
Nov 11, 2009
Posts
1,057
Likes
707
Can you guys listen to this song for sibilance I am using the ZS5 v2 and I can't listen to this sing without having lower the volume by a considerable amount.Is it just because of the iem being bright or case of bad recording?To me the vocal just sound too harsh.
The synth horns that come in right around 1:08 are exceptionally bright. My Icarus III do ok with them, but I can see where on the ZS5 they would distort into some pretty nasty sibilance.
 
     Share This Post       
post-13807611
Post #24,065 of 50,624

Superluc

100+ Head-Fier
Joined
Sep 13, 2017
Messages
323
Reaction score
209
Location
EU
Joined
Sep 13, 2017
Location
EU
Posts
323
Likes
209
anyway, i listened to that combo (source+ impedance adapter + zs6) for a few minutes, and didn't like it. i prefer the foams + minor equalization to tame the highs.
Why ? It takes away too much after those peaks ?
How about foams plus the adapter ?

I want too to try that combo.
 
     Share This Post       
post-13807623
Post #24,066 of 50,624

TJK81

Head-Fier
Joined
Sep 7, 2017
Messages
91
Reaction score
73
Location
Ostrava, Czech Republic
Joined
Sep 7, 2017
Location
Ostrava, Czech Republic
Posts
91
Likes
73
thanks, but it was @HiFiChris who suggested the impedance adapter, after trying and measuring zs6 with high output impedance sources. i only measured it.

anyway, i listened to that combo (source+ impedance adapter + zs6) for a few minutes, and didn't like it. i prefer the foams + minor equalization to tame the highs.
if you could get a decent equalizer app which could be used together with your usual playing apps, it should be a better solution than the impedance adapter, IMO.

don't know the specs of the audio of the galaxy s8, but the zs6 are not hard to drive. i've tried them with benjie s5 just now, and found you can reach about 104dB SPL peak with low distortion. most smartphones are more powerful than benjie s5 (at least, those which i was able to find audio specs of, like iphones or xiaomis).
i'll post the results and comparison with zs5 in a while.
Hey man... Don't say that. Three days ago i purchased 75ohm impedance adapter from Penon. ***:dizzy_face:
 
     Share This Post       
post-13807627
Post #24,067 of 50,624

Superluc

100+ Head-Fier
Joined
Sep 13, 2017
Messages
323
Reaction score
209
Location
EU
Joined
Sep 13, 2017
Location
EU
Posts
323
Likes
209
haha, that's great. So we agree on ZS3,ZS6 and ZS6 vs ZS5 v1.
There must be some difference between batches... there's no other possibilities :unamused:

Still waiting and hoping for mine pair... :fingers_crossed::weary::fingers_crossed:
 
Last edited:
     Share This Post       
post-13807650
Post #24,069 of 50,624

xrk971

Member of the Trade: XRKAudio
Joined
Feb 22, 2017
Messages
436
Reaction score
208
Location
Metro Wash DC
Joined
Feb 22, 2017
Location
Metro Wash DC
Posts
436
Likes
208
Website
www.etsy.com
I'm really happy with my V1's (have two pairs) so really curious what all the hub bub is about this harsh treble in V2 or ZS6?

@hakuzen,
Thanks for showing details of your setup. That adapter would fit the tip of my calibrated measurement mic perfectly. A sweep with REW software will show the differences in this treble peak. Once I get my hands in a V2 or ZS6, I will measure.

Siegfried Linkwitz shows how you can connect an IEM to a mic to measure frequency response. It's important to find a soft pliable tube that mimics the diameter, length, and softness of our ear canal. The length is important as that will cause resonance peaks and dips due to reflections off the ear drum and back into the IEM. This is why foam tips helps, they attenuate that hard impedance mismatch and soften the resonance peak. Usually it is at about 2.5kHz and 7kHz. Linkwitz even developed a passive notch filter for his Entymotic ER4's. He said it just won't sound right once you hear what it is supposed to sound like with that 2.5kHz and 7kHz peaks removed.

http://www.linkwitzlab.com/reference_earphones.htm



Passive notch filter circuit:


So here is my hypothesis: adding that second BA driver right at the tip increases (by 2x) the hard material cross sectional area (the BA capsule) of stuff that can reflect sound and cause a resonance. This resonance has nothing to do with a different BA driver or even the crossover, it's where it is located, so it's purely an acoustic transmission line theory for modes of resonance. That's why adding foam earplug tips help. It's also why a small wad of foam or acoustic damping fluff helps. If this is true, it is kind of a design flaw for something that's supposed to be "an upgrade". If I am right, the V1 will always sound better.

Start hoarding those V1's until they come out with V3's. :)
 
Last edited:
post-13807680
Post #24,070 of 50,624

Viber

500+ Head-Fier
Joined
Jan 28, 2008
Messages
681
Reaction score
511
Joined
Jan 28, 2008
Posts
681
Likes
511
There must be some difference between batches... there's no other possibilities :unamused:

Still waiting and hoping for mine pair... :fingers_crossed::weary::fingers_crossed:
Batches of ears?
 
post-13807692
Post #24,071 of 50,624

TJK81

Head-Fier
Joined
Sep 7, 2017
Messages
91
Reaction score
73
Location
Ostrava, Czech Republic
Joined
Sep 7, 2017
Location
Ostrava, Czech Republic
Posts
91
Likes
73
You are poor now ? :fearful:

I have buy one of them too, but it can always be used for else.
Yep, i'm lighter for 8bucks:blush:
I don't see any usage with this adapter. Just only to increase output impedance to damp treble for ZS5, ZS6 respectively.
 
     Share This Post       
post-13807721
Post #24,072 of 50,624

hakuzen

Headphoneus Supremus
Joined
Feb 9, 2016
Messages
1,761
Reaction score
2,579
Joined
Feb 9, 2016
Posts
1,761
Likes
2,579
I'm really happy with my V1's (have two pairs) so really curious what all the hub bub is about this harsh treble in V2 or ZS6?

@hakuzen,
Thanks for showing details of your setup. That adapter would fit the tip of my calibrated measurement mic perfectly. A sweep with REW software will show the differences in this treble peak. One I get my hands in a V2 or ZS6, I will measure.
i measured them, zs5 v1 and zs6. first one who did it and found the high peaks of zs6 was @HiFiChris .
also measured their impedance curve, and compared their FR when using different tips and cables, sources and even impedance adapter.
just search for our posts in this thread, and you will find the graphs, the link to HiFiChris' review and comparison, and will get the reason of the hub bub probably.
the second BA in ZS5 v1 was connected, but buried into the shell. in v2 and ZS6, it is located in the nozzle, together with the other one. the treble big differences (about amplitude, at least) are evident.
i also like ZS5 v1s, but i'm enjoying even more the ZS6 (after some minor eq to tame those peaks at 8.5kHz and 11kHz, which are from +5 to +9dB compared to ZS5 v1).
but after seeing how different are maker specs compared to measured specs, my suspects of fast kz decisions and changes respond to marketing purposes way over engineering, are growing up.
anyway, they can't be so lucky of getting so budget respectable iems continuously, so audio engineers must be doing well their job.
 
Last edited:
     Share This Post       
post-13807778
Post #24,073 of 50,624

hakuzen

Headphoneus Supremus
Joined
Feb 9, 2016
Messages
1,761
Reaction score
2,579
Joined
Feb 9, 2016
Posts
1,761
Likes
2,579
[QUOTE="xrk971, post: 13807650, member: 470639"
Siegfried Linkwitz shows how you can connect an IEM to a mic to measure frequency response. It's important to find a soft pliable tube that mimics the diameter, length, and softness of our ear canal. The length is important as that will cause resonance peaks and dips due to reflections off the ear drum and back into the IEM. This is why foam tips helps, they attenuate that hard impedance mismatch and soften the resonance peak. Usually it is at about 2.5kHz and 7kHz. Linkwitz even developed a passive notch filter for his Entymotic ER4's. He said it just won't sound right once you hear what it is supposed to sound like with that 2.5kHz and 7kHz peaks removed.

http://www.linkwitzlab.com/reference_earphones.htm



Passive notch filter circuit:


So here is my hypothesis: adding that second BA driver right at the tip increases (by 2x) the hard material cross sectional area (the BA capsule) of stuff that can reflect sound and cause a resonance. This resonance has nothing to do with a different BA driver or even the crossover, it's where it is located, so it's purely an acoustic transmission line theory for modes of resonance. That's why adding foam earplug tips help. It's also why a small wad of foam or acoustic damping fluff helps. If this is true, it is kind of a design flaw for something that's supposed to be "an upgrade". If I am right, the V1 will always sound better.

Start hoarding those V1's until they come out with V3's. :)
[/QUOTE]

thanks! interesting hypothesis. my actual knowledge doesn't reach those concepts yet. stimulant.

about the system to better measure an iem's fr with a mic, it seems that the iec711 couplers mimics the right distance but also ear resonances better than a tube. found some threads in this forum where discussing iem measuring rigs. i started with a tube, adjusting distances, but ending with artificial ears. it seems to get more accurate raw responses, but who knows, everything likes to be relative.
 
Last edited:
     Share This Post       
post-13807779
Post #24,074 of 50,624

xrk971

Member of the Trade: XRKAudio
Joined
Feb 22, 2017
Messages
436
Reaction score
208
Location
Metro Wash DC
Joined
Feb 22, 2017
Location
Metro Wash DC
Posts
436
Likes
208
Website
www.etsy.com
@hakuzen, I need to find your measurement protocol, but back-of-the-envelope calculation says 8.5kHz corresponds to a 2cm (1/2-wave reflection peak) distance from microphone diaphragm to location of front of the BA shells in the nozzle. Is that about right? I think the "standard" human ear canal has eardrum (biological mic diaphragm) is on average about 2.55cm or a 6700Hz peak. An 11kHz peak would imply something at 1.55cm deep - which may be the hard leading edge of the silicone earplug tip. So changing to foam tips may remove the 11kHz peak.
 
Last edited:
     Share This Post       
post-13807786
Post #24,075 of 50,624

Wiljen

Headphoneus Supremus
Joined
Sep 16, 2015
Messages
3,551
Reaction score
3,128
Location
TN
Joined
Sep 16, 2015
Location
TN
Posts
3,551
Likes
3,128
Website
audiofool.reviews
I was really worried I needed to dish out around $100+ for a DAC. I thought a good DAC helped more than Amp, I've even lurked in DAC Vs Amp threads as well.

Now basically I'm thinking I should just get the S5 during 11/11. But do u think I should start with the Topping NX? I'm a complete beginner so thanks a lot for the great informative comment ^^

Also do u like you're Sph9500? My personal opinion so far is, it's very good, but needs a slight bass kick for the music I listen to normally (Edms, rap and pop). They are slightly on the bright side as well, and I don't even know how much I believe in burn in. People say they become tame after use.... I've seen a lot of mods going around, do u think they are worth the risk tho? Tbh I love my pair and I thought they were gonna be over hyped :)

PS: lol I realized I'll spend a lot now, but at least I'm not wasting money on brand name like I did with beats haha
Differences in DACs are likely to be masked by other components until you get well above the price point we are working in.
I think you have gotten good advice on the amp from some others. I think with a little patience you can probably get a lot more amp for your dollar by purchasing from the classifieds here.

I do like the 9500 but to say they need a slight lift in the bass is an understatement. They have pretty severe roll off below about 100hz and sub-bass is just outright non-existent. On the other end of the spectrum, I don't find them exceedingly bright but they do have good treble extension. I would be very hesitant to try any non-reversible mod as I think the weaknesses in the 9500 are inherent to the driver and not likely to be "fixed" by external changes. I think I paid roughly $40 for mine on a black Friday sale so for the price, I have no complaints. I don't think they measure up to the Senn 598SE, but then I've never seen the 598 below $50 either.

Don't consider it wasted money, call it the cost of an education in audio. Even poor purchases teach us something.
 
     Share This Post       
  • Like
Reactions: loomisjohnson

Users Who Are Viewing This Thread (Users: 3, Guests: 16)

  • 40lb
Top