KZ ZSN Pro 1

This is another of the KZ series in my artillery bought from the European part of Ali via Poland with a little more cost in both item ans shipping (via  speed delivery logistics )raising the total cost to around 15 Eu . The speed carrier delivered it to around 15 days as it could be a standard package. 

Therε is not more story behind this pack . it was tested in home for only a few seconds and then repacked into its box for later review The sound seemed to me very loud , louder than the EDX with lots of bass  that makes it seem very close to my AKG 81DJ in sound.

a few days later while in parents house i used my new

 The case is exactly the same as with the EDX 

 

AS with EDX tere is the same amount of accessories 3 different tips by size a cble better then the EDx's fatter of 4? cores with less tangling except for the bud part  that uses thinner cable and includes also microphone There is also a info booklet that is the same as in the EDx model with the same bad but erey hot Chinglish language 

And this is the closeup of the earbuds. This is a see thru plastic case that shows the interesting insides. I didnt change the buds but they  fit perfectly  in my ears so no reason to change them . 

And a closeup of the 6 tips included in the case. small medium and large size 

This is a short overview of the model with some interesting photos 

Operation 

As with previous models I made the test together with EDX and Soundmagic my standard natural sounded earbud and with AKG DJ81 as it sounded in first phase very similar. 

I was quite wrong : the sound even of the same audio level was very different: Indeed the bass was very close to the AKG model but middles an highs are quite higher making the feel of a cassette s sounded with Dolby off! Practically this makes the feeling of very crisp middle sounds on voice and instruments. under this condition i kept them to listen to the Q3's music for around one hour that is with various Malay songs with a totaly different feel than any other earphone due to the instrument and voice crispness The only problem is that tinnitus was again raised. it is a problem happened around 2002-3 after using for very listening for very long times a transistor  radio with superhets (whistles) caused by nearby radio stations on shortwaves.

The next and final step was the cross test with between EDX and Soundmagic using my test file the tones sound file 

Zoom to watch the photo in better

 

I post the amplitude level for the first time. as it is clear the ZSN is ahead with 3 db higher volume  than the EDX Just using the statistics dialogue it shown the numbers below: 

Model	Peak level	RMS max	Avreage RMS	Mean RMS
ZSN	0	-3.4	-15.5	-11
EDX	-3	-6.7	-18.9	-15
SM 10	-9.6	-12	-19.9	-17

I leave this info for you to analyze. 

Click on the photo to see that zoomed From the photo itis clear that both KZ models have higher upper band levels that makes both trebly with EDX being higher in the lower part of the trebles band. SM instead are better in the middles 

Addition 

Long time listening between this and the Sound magic and EDX 10 yield better listening towards Soudmagic. ZZSn pro is good for being used with a smartphone then listening with a MP3 player. Instead  EDX is better than ZSN for a mid time listening ie below one hour !

KZ EDX the cheapest IEM !!

As you know I am a member of Aliexpress since 6 months ago . I have a made a few purchases since then with mostly cheap audio products . I also do also a lot of looking at various audio products and also receive lot of messages from the site

One of the most interesting things I have seen so far with lots of very positive reviews in both the internet and YouTube was the very cheap KZ EDX in ear earphone or IEM that costs just 5.8 Eu directly frem the KZ Store in Ali 

from the product page

Yes a very cheap model . The shipping costs are 1.7Eu that raises the total price to ca 7 that is still good. The shipping was smooth in the period when two other things ordered from Ali returned back to the stores , the one was due to delays from the seller and the second was never exported

The parcel had early the same problem but got rid of it very easy. It reached Athens in just 16 scanned but someone fogot to put it in to the  receiving box so it  followed a flight to Eire for 1 week then returned back to Athens !Just a few days after it was delivered by registered mail to my house, thank to the tracking services!

After a few days of rather personal difficult situations i devoted some time o test it. 

 

This is its box . the buds are separated from ithe cable for better protection 

All the inside box in a short view. BUds with the standard middle tips, plus small and wide tips . Plus the cable .Plugging the cable was a bit difficult to me as it required much force and care .

The cable has been ordered with microphone . its very possible to use it with my smartphone instead from the other cables the plug uses a full plastic plug base below the wires. I finally after trying several times managed to plug it into the monitors 

There are two  info sheets inside one of them is the users guide and a guarantee sheet. It is completely written in English that is NOT typical wooden Chinglish but neither poor English! THis little guide is the best insider on audio i ever read reffering not only on how the noise effect into listening but also how long you can listen to high level sounds before having any ear fatigue , the burn in that is nearly not necessary but also on how this can be installed into the ears. These guys are using a very poor text language but they are very good professors . They requite to recruit a fluent translator

I cannot use the middle ear tips. They are too small to my ears and the sound is not only leaked but also lack of  the essential bass . The wide replacement ones were very difficult to even slide into the earphones tube and finally i preferred to use a rubber foam replacement of T400 Comply clone. it was much easier to damp into the sound tube.   

The final connection!

After this i started my review as below:

The First time listening with some music with extended frequency range on the Q3 player: sibilant
for total time of 10 minutes

Second time after 6 hours listening to the same song : not so sibilant ! (just burn in? ) 

Finally it was taken by my wife who for the first time thought faster on how it is put in the ear!

More experiments from the technicians view

Sound magic  vs KZ  using parallel listening that is listening to the same audio channel and using them AM bud in the left ear and KZ in the right :  KZ sound is 15.2 db higher than the Soundmagic as measured later after recording them both via a microphone in my smartphone . The very highs are quite higher as also the basses 

Here is a screenshot from the program without normalization. you see how huge is the audio deference. Describing that  in terms of drawing with -10 to 10 where SM is only -10 and 10 for only KZ sounds are termed into  point 8

By separate listening and adjusting the sounds to be in the same level , EDX has higher bass and higher trebles than the SM These sounds are extend to the higher part of the high band . Graphically this sounds as like this way 

Click for more

The thick line shows the middle of the hearing that is the nose as you an see all the sound goes to the KZ with little more adding in the very high sounds Most times the bass difference is not so 'visible' to the ears.

verdict : Technically the IEM is quite good with near sibilant audio Concerning the price it is more than good . 4.5/5 

This is the funniest response i have seen in Amazon as any one can understand on the layout of the review . 10-40KHz as frequency response as referred . Really  the 20Hz was audible to me even if this so low frequency is not so easy always to be heard ! 20 Ha is the lowest frequency that a human ear can listen. This is the same with 40KHz  The best ears can listen up to 20'K'Hz.