General Information

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PLUG TYPE: 3.5mm, 4.4mm

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Mister Zeng

New Head-Fier
NiceHCK EB2S Pro - Best Earbuds I've Heard Under $20
Pros: Natural timbre and presentation of both vocals and instruments
Very detailed but not fatiguing
Sounds good on any genre.
Well balanced tuning
Very easy to drive
Imaging is great.
Soundstage is good.
Cons: Fit, comfort, and isolation
Have that slight peak at 5.5khz
Cheap build quality
Bass is its weakest point, no subbass.
Does not respond EQ as well as other earphones
Hello everyone! 大家好!Mister Zeng here!

Today, I'll be offering my insights on the NiceHCK EB2S Pro. This unit was purchased with my own money, and my reviews will always remain honest and unbiased, whether the items are self-funded or sponsored. Thank you and enjoy reading my review!

Just so you're aware, my review will focus solely on my personal sound impressions of this earbuds. I won't delve into the details of the packaging or the accessories that accompany the unit. Additionally, I'll be sharing my personal equalizer (EQ) settings that cater to my specific sound preferences. I'd appreciate your thoughts on how these settings sound on your end - feel free to share in the comments below.

The NiceHCK EB2S Pro packaging includes soft foam earbud covers, which I used for the entirety of this review. I strongly recommend that you also use them. Without these covers, the sound may be excessively bright for most listeners.

All of the audio gears that will be used have been burned in for at least 150 hours or more.

Here are the list of audio gears used for this review:

  • Topping A90 Discrete
  • SMSL SU-9N
  • Centrance DACport HD
  • Abigail Dongle
  • Apple Dongle USB C to Headphone Jack
Here are the list of tracks used for this review: (All tracks have been streamed at Qobuz and while other tracks have been bought for the FLAC file)
  • Shoot to Thrill - AC/DC
  • You Shook Me All Night Long - AC/DC
  • Back in Black - AC/DC
  • Highway to Hell - AC/DC
  • For Whom the Bell Tolls - Metallica
  • Killing Strangers - Marilyn Manson
  • Sunflower - Post Malone
  • Save Your Tears - The Weeknd
  • Always Remember Us This Way - Lady Gaga
  • Time - Pink Floyd
  • 雪落下的声音 - 陆虎
  • Seishun Kyousoukyoku - Sambomaster
  • Lay Me Down - Sam Smith
  • Let's Groove - Earth, Wind & Fire
  • September - Earth, Wind & Fire
  • Porco Rosso - Joe Hisaishi
  • Summer - Joe Hisaishi
  • Innocent - Joe Hisaishi
  • Nostalgia - Joe Hisaishi
  • Don't Stop Me Now - Queen
  • Radio Ga Ga - Queen
  • Come Together - The Beatles
  • Early Summer Rain - Yasuharu Takanashi
  • Mourning - Post Malone
  • AND MORE...

NiceHCK EB2S Pro - A Review By Zeng






Tonality (9/10) – This category holds utmost significance when it comes to audio gear. Moreover, it can serve as a succinct summary of the product.
The tonality of the NiceHCK EB2S Pro is exceptional. I am genuinely astounded by the quality of these inexpensive earbuds. They deliver a natural, organic, and authentic tone in both vocals and instruments that is second to none. I struggle to find words that adequately express their superb sound quality. The instruments in my favorite track, “Porco Rosso” by Joe Hisaishi, are rendered so brilliantly that it brought tears to my eyes, particularly during the trumpet sequences. Furthermore, Calum Scott’s “No Matter What” sounded so natural and authentic that it left me stunned and in awe.

I believe further explanation is unnecessary regarding the remarkable sound these earbuds deliver. I encourage you to try them yourself; you won't be disappointed.

Bass (4/10)
The bass of the NiceHCK EB2S Pro is almost imperceptible. It's incredibly light and lacks significant impact. However, that does not necessarily detract from the enjoyment it provides. It bears similarity to the HD600, albeit even lighter. Personally, I find it quite satisfactory, provided it isn't a hollow, cheap bass. And fortunately, the bass from these earbuds doesn't fall into that category. When listening to tracks like "Circles" and "Mourning" by Post Malone, you might expect a heavy bass to hit your ears at the start, but these earbuds don't provide that kind of experience; instead, it's a gentle thump. The same applies to other tracks such as "Killing Strangers" by Marilyn Manson and "You Shook Me All Night Long" by AC/DC. So, if you're a bass enthusiast, these earbuds might not meet your expectations.

Mids (9/10):
The midrange of the NiceHCK EB2S Pro aligns closely with that of the HD600. It's pronounced, but not overly so, which is a balance I find excellent. These earbuds exhibit a well-balanced tuning between mids and treble, avoiding nasal or overly sharp tones. Male vocals sound authentically male, and female vocals maintain their distinctive female quality. While listening to "T.N.T" by AC/DC, Brian Johnson's voice is so finely detailed and natural that these earbuds could feasibly rival IEMs priced at $100 or even $200.

Furthermore, when tuned to female vocals such as Celine Dion's "Immortality," these earbuds accurately reproduce her soaring high notes and the potent strength of her voice.

Treble (9/10)
The treble of the NiceHCK EB2S Pro possesses an engaging energy that enhances song detail without sounding overly bright or inducing listener fatigue. When listening to "Summer" by Joe Hisaishi, I can discern each instrument's sound from every direction. The detail this earbud provides is exceptionally good. Furthermore, its treble extension is impressive, exhibiting the delicate hi-hat taps in the opening of Metallica's track "Enter Sandman" with superb clarity. However, it is not flawless, with a slightly annoying peak noticeable at around 5.5 kHz. I found this a minor distraction, but your experience may differ.

Imaging and Separation (10/10)
The imaging and separation of the NiceHCK EB2S Pro are impeccable. While listening to "I Want to Break Free" by Queen, the 360-degree sound of the electric guitar intro was so realistic that it transported me, making me feel as though I was at their concert. Similarly, with Joe Hisaishi's orchestral track "Porco Rosso," the instruments seemed to occupy every inch of the concert hall. I found myself almost able to pinpoint each one. I'm at a loss for words to fully express the superior imaging and separation these earbuds offer.

Soundstage (6/10)
The soundstage of the NiceHCK EB2S Pro is respectable. In the song "Porco Rosso" by Joe Hisaishi, it effectively presents the separation between instruments, although determining the precise distances proves challenging. While it's commendable, it doesn't quite measure up to headphones like the Hifiman Arya or HD800s. Nonetheless, it's a notable improvement over the BGVP DN3, which I reviewed previously. In addition, I tested these earbuds for gaming, assessing their capability to distinguish the distances between the sounds of enemy and teammate footsteps. They managed to create a subtle soundstage, but it was nothing so remarkable as to earn special praise.

EQ Performance (5/10)
The EQ performance of the NiceHCK EB2S Pro is average; it doesn't respond exceptionally well to EQ adjustments. However, the exceptional sound quality of these earbuds makes such adjustments largely unnecessary. I'm just splitting hairs here, trying to tweak the sound to better align with my personal preferences. I primarily added a low shelf filter and a slight dip in the 5500hz region. Any other adjustments to frequencies are merely minor tweaks. Feel free to disregard them if you wish. I'd love to hear your thoughts on my EQ adjustments in the comments below.

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The NiceHCK EB2S Pro is an earbud I purchased out of curiosity after watching DMS's "Ultra Budget Earbud Roundup!" video. And YES, I can confidently say that for its price, the sound quality is outstanding—almost perfect, in fact. I highly recommend it to anyone seeking a quality earbud under $20. Please bear in mind, however, that these may not appeal to bass enthusiasts. But for those pursuing high fidelity sound, these earbuds are simply perfect.

This will now serve as my new benchmark for earbuds. While I have yet to find an equivalent among IEMs, I will frequently use these earbuds as a point of comparison with other IEMs.

Again, this unit was purchased with my own money, and my reviews will always remain honest and unbiased, whether the items are self-funded or sponsored. Thank you once again for reading my review. Have a great day!
@4ceratops : Ive heard from others, the pro sounds much better and warmer.

I have to say the review is pretty much spot on, i can hear an impressive amount of detail and it does sound similar to the yuin pk2 and ksearphone lbbs. The problem im having is that the fit is quite bad, at least for me. It might be that the drivers are slightly bigger (15.4mm) or the shape of the shell, but i can feel the earbuds and they feel like they are blocking up my ear. Its a very distracting feeling. I think i have smaller ears than on average though, so it might not be the earphone's fault.

I do think my pk2s sound better though, although im not sure if they are real pk2s or have been damaged as they are a very old pair. they are the "new" version with the gray logo (the original uses white). one thing i noticed when doing a comparison is that the PK2s sound much "louder" at the same volume, especially with stuff like drums.
Chooey choy
Chooey choy
I have the 4.4 balanced version and I'm wondering if there is a difference(even slight) in sound quality compared to the 3.5mm version. To describe it in the simplest way is, it is a very fun sounding earbuds(for me) and it easily suits any genre you throw at it. It is neutral sounding with warmth in it, the perfect sound signature for me. It has the cleanest mids I've ever heard from an earbud. It has quick punchy bass with sparkly treble. I use it(with stock foam pads) with my sony walkman zx300(which is a warm sounding DAP) paired with my ifi hip-dac 2(with X-bass on) and it sounds so good.
Mister Zeng
Mister Zeng
@Chooey choy I would agree that this is one of the best tuned earbuds for the price :)


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