When it comes to budget headphone selection, it is really hard to find the right one. There are a lot of headphones from both largely known and less popular brands. Knowledge Zenith ED9 or the KZ ED9 is one among the latter. It is a from a new Chinese manufacturer that just started emerging and is already favorited by many. Enthusiasts are recommending it for entry-level headphone buyers. So let us look into it in detail to find what's good about it in this review.
Knowledge Zenith ED9 Review
Black ED9 | ED9 with nozzles detached | Whole kit
(Click to enlarge images)
💲 Price: ₹1,093 | $9.88
Specifications
Headphone Type
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Wired In-ear canalphone
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Driver Type
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Dynamic
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Frequency Response
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7Hz – 46.2 KHz
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Diaphragm
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T Shaped Driver Unit
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Impedance
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18 ohms
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Sensitivity
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108±3dB
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Cable/Jack
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120cm cable, 3.5mm jack
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Colors
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Black, Silver
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Design
The Knowledge Zenith ED9 has a unique design language. It is a silver plated earpieces (Black plated if you buy the black headphones) with KZ branding. The Earbuds are reddish brown colored and are swappable of course. It looks premium overall and the cable is really nice. It is textured with a red and brown texture that seem to appear from the wiring underneath the translucent outer cable. The finishing of the cable gives a rubbery feel but it is not elastic. The headphones' each earpiece are longer than average ones making it noticeable when it is worn. This is good or bad based on personal preference. I personally am neutral about that look and don't mind them in terms of look. The remote/mic unit of the headphone is basic with a single button that will play/pause music and accept/reject phone calls. It follows same design pattern and is nice looking. The headphones overall look really good.
Features
The Knowledge Zenith ED9 comes with numerous unique features that are listed by the manufacturer with special names. We can associate with some of them as we hear them commonly but others, we don't really know much and we don't even know if it is anything worth or valuable. So I'll now mention all the features that are listed by the maker.- T-shaped Driver Unit: They promise clearer and softer sound than a traditional driver's offering from this unit that they have developed.
- New Vibrant PEK Diaphragm: This headphones use PEK diaphragm replacing regular PET. They are said to offer better vocals and bass by faster vibration frequency because of the lightness and thinness of PEK.
- Tuning Nozzles (An extra pair in box): You can replace the nozzles (The tip part of the earpiece that connects with the earbuds) with the extra pair they are providing. The one installed already is a brass nozzle that offers neutral sound. And the gold one which comes with the box can be swapped if you want extra bass.
- Super Bowl Augmented Mids: The nozzles' ends are shaped like a bowl which is said to improve mids and provide them more naturally.
Performance
The headphones performed pretty well. During the tests on frequency response gave results that were on point with what the specifications mentioned. And then in the bass quality test, it was stable and pure. Bass is high in this headphone. The highlighter "T-Shaped drivers" provides softer output than others. I was listening few Rock and Heavy Metal tracks and they sounded really good with the extra bass tuning nozzles. Talking about the nozzles, the nozzles do influence the sound output and you can't find which nozzle provides the real sound. I concluded that the brass nozzle offers the best audio you can get from this driver.
Comfort
The EZ ED9 is a really affordable headphone with good looks and performance. But it is somewhat lacking in comfort department. It is not worst or bad. It is just a bit behind because of some design elements. The longer earpieces affect your comfort and sometimes the earpieces fall off slowly from your ears because of that. The headphones are a little heavier too than average because of the metal construction. This is not a big minus at all. I am just mentioning it. And lastly, the remote/mic placement. It is placed a little lower in the cable than usual. It was inconvenient as you have to search for it. You can get used to it though later on.
The headphone fit and noise cancellation are all fine. The cable is long (120cm) enough for flexible uses and the jack plug is L-shaped. You can plug and use it on your mobile devices easily without any hassles.
The headphone fit and noise cancellation are all fine. The cable is long (120cm) enough for flexible uses and the jack plug is L-shaped. You can plug and use it on your mobile devices easily without any hassles.
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