NiceHCK X39 Earphones Review – Basshead on a Budget

First Impressions

I’ve had a few IEMs from NiceHCK, namely the DB3 and the X49. Both are impressive and the X39 is no different.

The NiceHCK X39 came in pretty simple packaging, which is very different from what came with my DB3, but the presentation is still decent. 

Aesthetics and design-wise, I was impressed that the X39 had a silver-plated cable design with little to no microphonics. It’s light because of its size, which makes it quite comfortable to wear.

Build Quality

The NiceHCK X39 has an aluminum-alloy shell, which means that it’s durable. I’ve been using it heavily since it arrived and so far, it hasn’t shown any signs of wear and tear.

One kind of “disadvantage,” as we may call it, lies with its cable. Since it has a non-detachable cable, getting it fixed can be a hassle and you may have to end up just replacing the entire set. 

On the bright side, I do like the material used for cable. It resembles a silver-plated cable construction which helps a lot with reducing the microphonics that commonly occurs with earphones having a rubber-coated cable. 

With this minor feature, the X39 is much more enjoyable since the cable doesn’t cause annoying microphonics.

The included ear tips are your run-of-the-mill silicone ear tips but the quality is decent and I didn’t have any difficulty regarding the fit. They did feel pretty cheap but I can’t complain because this set only costs $15.

Fit and Comfort

Since the NiceHCK X39 is relatively small in size, it’s very light on the ears despite its aluminum-alloy shell. It doesn’t cause any strain on the ears even when using it for extended periods.

The stock ear tips were pretty usable and I had no issues with how they fit my ears. The cables are comfortable and not irritating thanks to their silver-plated construction.

One thing that gave me issues regarding the fit of the X39 is the fact that they don’t come with ear hooks, unlike other IEMs. I found myself getting them accidentally pulled off my ears and this gets pretty annoying over time.

Sound Quality

In terms of how the NiceHCK X39 sounded, it resembles a V-shaped sound signature due to how its bass frequencies slammed through my ears upon trying it out. The presentation in the vocals is also impressive, with it not being too recessed in the mix.

I must say, the X39 is one energetic-sounding pair of earphones.

Bass

For a relatively small bullet-style IEM, the NiceHCK X39 packs a mean punch that’s evident on its low end. The sub-bass extension is astonishing for an IEM at this price point and it has enough sub-bass rumble to be considered a bass-head IEM.

The mid-bass is nothing short of impressive as well. It has a controlled yet energetic presentation producing impactful slams whenever the tracks demand it.

There’s no evident mid-bass bleed that I’ve encountered during rigorous testing of the X39, which is a massive plus since many “budget bass-head” IEMs seem to fail at achieving this.

Mids

Although resembling a V-shaped or warm sound signature, as I’ve mentioned, the vocals nor the instruments are pushed back or recessed. They’re presented with good detail and body without any weird textures. 

The mids are pretty articulately presented and had shown little to no signs of mid-bass bleed, some, but not as bad as others.

Though being more colored in presentation compared to more of a natural timbre, the mids on the X39 are still very pleasant, plus its tuning compliments other frequencies pretty well.

Treble

The treble of the NiceHCK could hold up independently. However, it lacks characteristics compared to the other frequencies. It has a more rolled-off presentation rather than a bright and sparkly sound. 

The treble extension is also average, lacking the openness I usually look for on IEMs. I like a bit more bite and airiness to my treble, as it makes the tracks appear more detailed and allows it to stand out a bit more in a mix. 

This is not the case on the X39. 

However, even after all that, the treble is well-controlled and has no metallic timbre and harsh peaks. Overall, it still has a decent tuning for this frequency.

Test Tracks

I’ve tested the NiceHCK X39 with different genres of music to get a proper understanding of how they sound and here are my findings.

• Metal / Rock – The X39 didn’t disappoint when tested. What stood out for me was how the mid-bass tuning made the kicks and the distorted bass guitars sound forward and tight but without the presence of any mid-bass bleed. The bass was well-controlled and made the tracks energetic. The air on the higher frequencies seemed lacking, but I’m just being nitpicky at this point. Overall, the X39 performed better than I expected. Tracks used: I Don’t Love You (My Chemical Romance), All The Small Things (Blink 182), Ignorance (Paramore), Cold (Korn), Cliffs of Dover (Eric Johnson)
• Pop – Even though having a somewhat V-shaped sound signature, the mids weren’t too recessed in the mix and still retained good detail and definition. The X39 was able to catch up with the demand of this genre. It showcased good audio separation and a decent soundstage, making the vocals and instrumentation appear detailed and clear. Tracks used: Snooze (SZA), As It Was (Harry Styles), Yours (Maye)
• Hip-hop – The 808s were oh-so-impactful. The X39 packed a decent rumble which made the tracks more enjoyable. Even though having a rumbly sub-bass, it didn’t sound all over the place and remained well-behaved most of the time. Drum kicks benefitted from how the mid-bass was tuned, allowing them to stand out more in the mix. The vocals and other instrumentations weren’t left behind, adding to the overall energetic presentation of the mix. Tracks used: LOVE. (Kendrick Lamar, Zacari), sdp interlude (Travis Scott), I Wonder (Kanye West), Superhero (Metro Boomin & Future)
• R&B / Soul – The instruments on the lower frequencies stood a bit more due to the V-shaped and warm nature of the X39. This added more body to how the tracks were presented. The treble and the upper mids presented the different instruments and layers of vocals. The vocals didn’t sound inorganic or showcase any weird tonality. The same goes for the instruments, as they were presented smoothly with a little more emphasis on their low end. Tracks used: LA FAMA (Rosalia, The Weeknd), Blessed (Daniel Ceasar), Moonlight (Kali Uchis), Traingazing (Sam Wills ft. Honey Mooncie)

Conclusion

The NiceHCK X39 can be a good sidegrade option for bass heads looking for an IEM to wear casually. They have a muted aesthetic, making them great for day-to-day use. Plus, the fit and comfort are decent, and the sound quality is impressive. 

When talking about its price-to-performance ratio, the X39 blew me away with how good it sounded for its price.

Is it perfect? No, but it stood out for me. The tuning, the looks, the sound, all of them check out. 

The NiceHCK X39 is another hidden gem in the current IEM market and I’d recommend giving it a try, especially for bass heads and those curious about these earphones.

This post was last updated on 2025-03-21 / Some images from Amazon Product API & some links may be affiliate links which may earn us a commission from purchases.