BUDGET
IN-EAR

ZST

KNOWLEDGE ZENITH

Rating

Price

7

13 €

Review published:

03/2018

Driver

2

per Side

1

Dynamic

1

Balanced

Impedance

10 Ohm

Piezo

0

Sound

7

Bass

7

Mids

6.5

Trebles

Sensitivity

106 dB

6.8

Handling

8

Haptic

B

Value

0

Daily Life

Frequency

20 - 40000 Hz

Intro

The first hybrid from Knowledge Zenith is a good and bright all-rounder that exaggerates a bit in the highs every now and then. Nevertheless I find the sound quite successful. For me, it is a very affordable entry into the (C)Hi-Fi world of KZ.

Handling

The ZST Pro are very comfortable in-ears, worn over the ear. Perfect fit in the ear and due to their weight hardly noticeable. In addition, KZ includes the ZST with the exchangeable 2-pin cables.

The ZST is available in a colorful (cyan, purple) and carbon version. By the way, it is a myth that these are two different IEMs.

The scope of delivery is very bulky, with 3 parrens of silicone tips and a wire reinforced cable. This is a bit fiddly, because you have to bend the wire again and again.

The isolation is good as with all KZ products at moderate volume.

Sound

The ZST has a good level of detail and clarity, especially in the trebles.
Therefore the partly sharp heights should not be a KO criterion. This is more to do with personal preferences and listening habits and above all volume. I personally have no problem with this, even over a longer listening period. The trebles are designed for the Asian market, where a strong emphasis seems to be preferred.

The mids are a bit dry, but can be shiny when it comes to vocal music like singer-songwriters. But they also cut a good figure with other genres. At a higher volume they can also become a bit uncomfortable for some people in combination with the bright highs.

The bass is quite accurate and controlled. I would, however, wish for more sub-bass from my home. The bass reacts very well to corrections via equalizer, which allows it to reach its full potential. But even without tutoring it is already more than sufficient and present. This is rather a tip for bassheads! However, it tends to roar from time to time and is not always completely clean.

Outro

KZ has done quite a good job with their first hybrid, which sound-wise outshines their older models.

Especially if you want to enter the hybrid world, this is a good first step to get an idea of what is possible for 15 € compared to the Mediamarkt-Ramsch, which has the same price.
At the beginning these in-ears will impress you, but maybe you will have the wish for a more neutral or dynamic in-ears. If you want to stay with KZ, the next step would be a ZSR, or KZ10 for neutrality, or a ZS6 for more stage and detail level, but you have to accept sharper highs with the latter.

Legend

Haptic:

Here the processing plays a role and the usability of the scope of supply. Additionally the appearance, wearing comfort and robustness.


Value:
Here I evaluate for me subjectively the price/performance ratio - does not flow into the evaluation!

Z: No Brainer

A: money well spent

B: all right, you can do

C: gives better for less money

D: overpriced

E: collector's price

Daily life:
Here, I focus on the long-term audibility and whether I can hear it well out of the box. This is of course very subjective and therefore only a minimal deduction or bonus. 

(-0.1, 0, +0.1)

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Rating in Letters

S: 9.5 - 10

A: 9.0 - 9.4​

B: 8.0 - 8.9​

C: 7.0 - 7.9

D: 6.0 - 6.9​
E: 5.0 - 5.9​

F: 0.0 - 4.9​

AS06

AS06

ATE

ATE

ED16

ED16

S2

S2

ZS10 Pro

ZS10 Pro

ZS7

ZS7

ZSN PRO X

ZSN PRO X

ZSX

ZSX

AS10

AS10

BA10

BA10

EDX

EDX

Z1

Z1

ZS4

ZS4

ZSA

ZSA

ZSR

ZSR

ASF

ASF

ED12

ED12

ES3

ES3

ZAX

ZAX

ZS5

ZS5

ZSN

ZSN

ZST

ZST

ASX

ASX

ED15

ED15

ES4

ES4

ZS10

ZS10

ZS6

ZS6

ZSN PRO

ZSN PRO

ZST X

ZST X

Second Opinion

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CHI-FIEAR © 2020 by David Hahn

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