KZ EDX review everyone! Upon receiving my personal unit for this review and checking out the KZ EDX myself. I was immediately greeted with:

Them: How much bass do you like?
Me: YES PLEASE!!! 😁

I still vividly recall the time when I first bought my costly IEM (expensive in terms of my budget back then, the brand was Silvertec and I can’t remember the model 😅), and I can picture my younger self grinning from ear to ear while using it, completely absorbed in the bass. Maybe this alone will lead me towards the Final(no pun intended) Audio E1000 or even the E5000.

Upon opening the KZ EDX review unit box, it says ‘Customized Heavy-bass Earphone.’ and before we get a deep dive on my my take on this it. I would like to thank KZ themselves for sending the unit in exchange for my personal take on it. You can check their official AliExpress storefront, as well as their Shopee and Amazon storefronts. As for the KZ EDX, you can check these direct links from them.

AliExpress storefront link: KZ EDX AliExpress($8)

Shopee storefront link: KZ EDX Shopee

Amazon storefront link: KZ EDX Amazon

Product Specifications

The KZ EDX has the following specifications:

• Configuration: ø10mm composite magnetic dynamic
• Wear: Ear hook
• Sensitivity: 112dB
• Impedance: 23Ω
• Frequency: 10-20000HZ
• Plug Type: 3.5mm
• Pin Type: 0.75mm
• Line Length: 125±5cm
• Control Button: With MIC / No MIC
• Weight: 23±3g

Packaging

After unboxing the KZ EDX review unit, I found the following items inside:

• The earphones
• A medium-sized memory foam tip already attached
• Three sets of silicon tips (small, medium, and large)
• A brown-colored cable
  …and some documentation.

Build Quality

Assembling the IEM is straightforward, but I would have preferred if there were indicators on both the IEM and cable to distinguish between the left and right sides. This would be helpful for beginners who might be unsure about where to attach the 0.78mm 2-pin connector.

The KZ EDX has a lightweight plastic construction, but it doesn’t look or feel cheap despite having a toy-ish appearance. It features a vent on the opposite side faceplate.

The copper-colored cable is a 4-core braided design with a mic that allows for pausing and playing on an Android phone’s music player (I’m using PowerAmp). There is a noticeable beep sound each time the button is single-pressed, and a long press accesses notifications on my POCO X3 NFC phone. I haven’t tested its clarity for calls.

Unfortunately, the cable lacks a chin lock or slider, and the 3.5mm gold-plated plug has three blue rings instead of the usual black. Non mic cable is also available.

Tonality

The warm tone of the EDX IEM makes it an excellent choice for those who prefer listening to powerful bass music.. I’m talking to you bassheads.. YES! You guys.. Let me tell you why..

Lows

Bass is good.

Let’s move forward to the next topic, about what eartips I would like to use for KZ EDX…

LOL!

Lows be like: FOOL! You can’t escape me! I’m the captain.. 🤣

Jokes aside, the KZ EDX is undoubtedly designed for those who love heavy bass music. You’re also in for a treat if you like to browse social media or watch movies; more on that later.

All of the songs I will be mentioning have fantastic bass, and I love them all. As I mentioned earlier, my younger self would have been grinning from ear to ear with the KZ EDX. The bass is powerful and rumbly, and for most EDM songs, it feels full and beefy, like in “Barbra Streisand” by Duck Sauce.

With this IEM, the bass guitar in songs like “Like A Stone” by Audio and “Billie Jean” by Michael Jackson has more presence than the bass drums. You can definitely notice the difference.

I saw a TikTok video of a battle between an acoustic guitar and a banjo in a movie clip. The bass from the acoustic guitar was louder than the rest of the frequencies, but the banjo had a crisp sound. If you’re interested, the video is called “Adey-bo – Dueling Banjos.”

When it comes to audio from videos, the KZ EDX is excellent for watching videos on social media, YouTube, or movies. Everything feels like a movie, and it’s like having a 12″ subwoofer with you whenever you use the IEM. The rumble and thump are fantastic, especially for action movies or sci-fi with lots of explosions. You’ll be surprised with the vocals..

Highs

Depending on the genre you’re listening to and despite not being this IEM’s major selling point, the highs are nonetheless acceptable. However, cymbals may not sound as exciting, lacking separation between different types of hits. For example, in Trivium’s “Built to Fall,” cymbals mostly sound the same. Additionally, in Miki Matsubara’s “青いボールペン” (aoi ballpoint pen) 16bit/44Hz FLAC, the letter “S” sounds sibilant due to a high-hat cymbal being hit during the lyrics “Stop Me..” at around 50 to 60 percent volume. While it becomes more noticeable at higher volumes, it isn’t bothersome.

Mids

The EDX delivers an intimate sound for songs like Ed Sheeran’s “Thinking Out Loud” and Inoj’s “Love You Down.” In Metallica’s “Cyanide,” the electric guitar lacks energy but still conveys a sense of angst. The saxophone used by Kenny G in “A Year Ago” and the piano in Bill Evans’ “Peace Piece” are both enjoyable to listen to. Fans of these genres need not worry about the midrange performance.

Silicon vs Memory Foam, and Isolation

There are a few factors to take into account while deciding between silicon and memory foam eartips and attaining isolation. You might not be aware of the distinctions between the two if you’re new to the world of in-ear monitors. Personally, I like using foam tips constantly and advise purchasing replacement foam tips when the originals become worn out.

Foam eatips have the added benefit of reducing high-frequency noise and enhancing bass frequencies. However, the level of isolation you get can depend on the volume of the music you’re listening to. At 60% volume or higher, you may not hear much of your surroundings, and the isolation achieved with foam tips is superior to that of silicon tips. Keep in mind that the IEM’s memory foam tips may not be the best fit for your ears, and you may need to try out different sizes to get the best seal.

Who is this for?

For people who love deep bass and anything bass-related, this product is perfect.

Although bass is suitable for rock music, I wouldn’t recommend using this IEM for fast-paced songs like ‘A Hope in Hell by Glamour Of The Kill’ as only the lows will be accentuated, and the highs and midrange instruments won’t be as detailed as desired. This IEM is more geared towards emphasizing bass and vocals. Instead, I suggest listening to songs like ‘Like A Stone by Audioslave’ where the IEM’s driver will have sufficient time to process each instrument.

If you’re into EDM such as DnB, Techno, House, Dubstep, and the like, then the EDX is perfect for those genres.

You’ll also enjoy hearing solo performances on instruments including the piano, acoustic guitar, and drums. A live performance-like sound is produced by the EDX’s ability to replicate the sounds of strings being plucked, high-hats being struck, and high notes being played on the piano, together with the supporting bass. It’s truly delightful.

Conclusion

You’re a basshead, you want this, you need this. PERIOD! 😁

On a serious note, the KZ EDX’s strength lies in its bass. Even if my opinion highlights the importance of the highs and mids, it doesn’t imply you won’t love this gear. REMEMBER: The KZ EDX is an inexpensive IEM. If you prefer bass music, you will surely love this. Using the KZ EDX as your daily driver for music and social media will give you the impression that you are constantly carrying a 12″ subwoofer.

ENJOY!