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There's very little hope of getting a ZS1v1 nowadays.
Another day I just received my KZ Zs5 from banggood.com.
The first time I listened to this I didn't like it, the treble was too harsh and especially the sibilant sound like S.
After two days of burn in with music I would listen normally, it's better but the problem is still there. I use my Macbookpro and imac to listen to lossless music file.
Im quite new, I think I'm treble sensitive or is it from the iem. I found that there are two Versions of this, I only see one circle in mine Zs5 and it comes with earlike graphic package.
And would Zs6 has the same characteristic of supper strong treble like these Zs5?
The NX1 and NX2 have been reported to be very sensitive. However the newer versions, NX1s and NX2s, aren't. Rather nice inexpensive amp and amp/DAC combo respectively.
Impedance mismatch, I think? A quick google search suggests ~24 ohms output impedance.
As can be seen from the data in this thread, ZS6 has even more treble than the ZS5 v1, but it also has an opposite reaction to increasing output impedance and so would probably produce very different results on those sources (less treble)
The new S versions have around 3.5 ohms output impedance though - not terrible, but not great either unless that's a desirable trait for a specific pairing - and it is right in the sweet spot for some IEMs that like non-zero output impedance, but I can't comment on how it effects KZ stuff.
I'd vote ES3 for largest bass response and Zs6 for best followed closely by Zs5v1.
Can KZ multi-driver headphones really beat out there single driver headphones? Is the difference just minor?
Never had that magnitude of interference you described with my NX2. Well, when connected via DAC to my smartphone, sometimes there is a little interference. I guess it depends on the things you pair it to. I use it mostly with a FiiO x3II and it's a great combination for all KZ earphones. Another great amp to pair with the X3II is the classic Cmoy, but not for IEMs - only for something with more than 24 ohm.
I think the ED3 is only marginally better than the Zs3 or Zst for quantity of bass output. So, I guess in answer to your question I do think there is a difference, but I don't think 2 drivers means double the bass quantity because it just isnt the case. I do think some of the dual dynamics from other brands really do lots for bass quantity and quality. One of my favorite all time basshead in ears is the Denon Urban Raver that was dual 11mm dynamics.
I think the NX1 was the one that was really susceptible and they did get better with later models. I have the original Nx1 and it did occasionally have some interference but I never found it to be as bad as some others did.
I really do.....
Yeah, I wouldn't have felt the need to point it out if it was a "normal" level of EMI, as I'd read plenty about that before ordering one, but pairing the NX2 with the ZS5 v1 (no other IEMs I own produced nearly this dramatic a result btw) and setting it on top of my desktop PC was a genuinely terrifying experience.
I also experience the ES3 as having more bass than ZS5.