Listening to the es4's I just received.....def. they are less sibilant than zs5 for sure ( but anyway, I dont find zs5's overly trebley as most people say, for for me they sound perfect) They sound good to me, zs5 in my opinion has better bass and instrument separation but thesthese es4 are...

The silver cable just have a better Channel separation, it is all I noticed, and maybe a little more clarity, but just by how sturdy it is...a must have for sure.

It is kz indeed, the brand is engraved in the plastic piece where the cable split. You can buy it on aliexpress I would share a link but i doubt it is allowed lol

Hi guys is there any problem if the vent holes on the zs5 are uneven? Left one is bigger than right one on mine. Another user told me that after asking, he realized vent holes in his unit were different too but he never heared any problem. I don't hear any uneven eq or balance problem, but...

So you have different size holes and never noticed? Lol I must be very finicky hahahaaa Thank you again for your help, hope I can participate in the other forums sooner or later ;-)

It can be seen here how both vents are not the same measure.

The thing is I do not hear anything strange, channels seems balanced tonally and volume wise, thats why I wanted to ask if those vents make a huge difference. I taped them to try, but they get too boomy. I wish I could post in the pertinent thread but thats no possible

It says "manufactured by yuanze electronics co. ltd." I have a pair of zs3 I bought some time ago from gearbest and the info in the box on both is the same...I'm sure they are original...

How do I check that? They seem legit (you can see both armatures drivers inside the nozzle) Thanks for your help mate

Yeah theres a small hole next to both nozzles but one is like half the other one lol I have a bunch of t500 foams, using them right now with those...I don't know if my ear is adapting to them but I think treble is being tamed slowly hahahaa Hope someone could shed more light over the unequal...

Have you tried to plug the controller to the console? I noticed some improvements doing that ( clearer mic sound and overall better audio)

Hi guys, i've been reading several threads since some months ago. Hope to participate soon!! I just wanted to to ask a simple question on the kz apreciation thread since I just received a pair of kz zs5's where vent hole is smaller in the left iem. Is this normal? Does it affect the sound...