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Product Snapshot
Description
KEFINE Klean SV In-Ear Monitors (IEMs)
The KEFINE Klean SV is the evolved Silver Version of the highly acclaimed Klean series, engineered for listeners who crave speed, clarity, and precision. Featuring a new-generation 10mm DLC (Diamond-Like Carbon) diaphragm dynamic driver, the Klean SV delivers a faster, tighter, and more resolving sound than its predecessor—without sacrificing musicality.
Designed with a dual-cavity driver structure, the Klean SV ensures excellent consistency across bass, mids, and treble, creating a well-balanced yet immersive soundstage. Whether you’re a detail-loving audiophile or a daily music enthusiast, this IEM offers exceptional transparency and control across the frequency range.
One of the highlights of the Klean SV is its three interchangeable tuning nozzles, allowing you to fine-tune the sound signature to your preference:
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Silver Nozzle – Balanced and natural
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Gold Nozzle – Neutral, transparent, and highly detailed
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Black Nozzle – Warm, smooth, and bass-forward
Built to last, the metallic alloy ear cavities are crafted using high-precision casting and polished for a premium silver finish. The ergonomic shell design follows the natural contours of the ear, ensuring long-term comfort and a secure fit.
KEFINE bundles the Klean SV with a high-quality silver-plated copper cable, featuring standard 0.78mm 2-pin detachable connectors. To suit different listening setups, the IEM is available in 3.5mm single-ended, 4.4mm balanced, and USB-C termination options, making it compatible with smartphones, DACs, DAPs, and desktop rigs alike.
If you’re looking for a high-resolution dynamic driver IEM with tuning flexibility and premium build quality, the KEFINE Klean SV is built to impress.
🔊 Sound Highlights
Highly Detailed & Resolving Sound
Powered by a 10mm DLC diaphragm, the Klean SV delivers lightning-fast transients, tight bass control, and extended treble with excellent clarity. The result is a clean, resolving sound that reveals micro-details without sounding harsh.
Dual-Cavity Driver Design
The dual-cavity structure enhances tonal balance and phase consistency, ensuring a smooth and coherent sound across all frequencies with a wide, immersive presentation.
Three Tunings, One IEM
Switch between balanced, neutral, or warm sound signatures instantly using the interchangeable nozzles—no EQ required.
📊 Specifications
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Driver Type: 10mm DLC Dynamic Driver
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Impedance: 32Ω ±15%
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Sensitivity: 107dB ±3dB
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Frequency Response: 20Hz – 20kHz
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Connector Type: 0.78mm 2-Pin
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Termination Options: 3.5mm SE / 4.4mm Balanced / USB-C
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Weight: 10g per side
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Customers praised the IEM for "amazing sound quality" with exceptional clarity, vocal detail, and instrument separation. Many noted clean, controlled bass and balanced tuning. The metal build quality, comfortable fit, and interchangeable nozzles were highlighted. Some found bass lighter than expected, and one reported mic hissing issues with the Type-C cable after a month.
good. don't overthink about it this and that iem I you want clarity and details it's good and don't think about bass too much that feeling get when the situation unless no it's not like tws and that's it and don't think 3.5mm and c buy anything it's almost same
My mind is blown listening to the vocal clarity and instrument separation, and yeah I'm using it without a dac 🤯
Clean, detailed sound with good clarity.
Tight and controlled bass rather than overly boosted bass.
Forward vocals and clear mids. Very good iem
What a great great experience.
Update 1 month mic have hissing issues now while playing gaming my teammates is complaining about hissing noise coming from mic don't buy type c version cable has only 1 month warranty it's scam
For music it's good music feels like more alive it sounds clean as it's called it doesn't Excel at one thing just clean audio for everything
For gaming it's not good footsteps are clear but when enemies are above hard to pinpoint positional audio best nozzle for gaming is golden one still not comparable to CCA PHOENIX which is more gaming centric overall it's very good 2
Sound quality felt good with tight bass without rumble
i sent these messages to my friend in real time when i was trying out the kefine klean sv in real time
These are my fourth pair of IEMs, and honestly, I can’t find a single fault with them. The sound signature is beautifully smooth, well‑tuned, and perfectly balanced. Vocals come through with striking clarity, making every track feel alive. Totally worth it — they deliver an experience that goes beyond expectations.
Pretty fantastic overall. I was previously using Tws form nothing (nothing earbuds 2). I have to say detailing is more better in these Iems. I can hear every instrument clearly. Vocals are pretty clear as well. Have used them in Valorant as Ascendant 3 player and have to say they sound pretty good. But I am more used to the sound signature of hyperx cloud 2 which are my daily driver in gaming. I have used these in valorant and must say they sound different than cloud 2. I have ordered a dac I will be using to test gaming with these Iems. I will update after that dac arrives.
Really Good built. Clean audio (as the name suggests) I don't prefer as much Bass as most people so pretty much the best version I could have bought in this range. Vocals feel rich and overall a very balanced experience.
Amazing sound quality
It's best for those people who like clean music with some level of bass. Sound is superb. Delivery was on time. Thank you, TAS. :)
Clean sound, clean performance and a clean design. Worth it.
Great set the clarity is noticeable straight away.
great value for money IEM
I recently upgraded from the iQOO Buds 1e to the Kefine Klean SV, and the improvement in sound quality was immediately noticeable.
Using the silver nozzle, the Klean SV delivers a balanced and detailed sound with excellent clarity and separation. Vocals sound natural and engaging, while instruments have plenty of room to breathe, making tracks feel more layered and immersive. Listening to artists like Cigarettes After Sex, TV Girl, Billie Eilish, Mitski, and beabadoobee has been a fantastic experience, with vocals and background details coming through much more clearly than on my previous earbuds.
The bass is clean and controlled, complementing the music without overwhelming it. The overall presentation feels refined and detailed, allowing subtle elements in songs to stand out while maintaining a smooth and enjoyable listening experience.
The build quality feels solid, the fit is comfortable for long listening sessions, and the interchangeable nozzles provide useful tuning options. With the silver nozzle, the sound strikes a great balance between detail, vocals, and bass.
Overall, the Kefine Klean SV has exceeded my expectations and offers an impressive listening experience for its price. It's a great choice for anyone looking to step into the world of IEMs and experience a more detailed and immersive sound.
This IEM (black nozzle) separates layers like nothing else. Beats my AirPods Pro. High build quality, very comfortable, great accessories - it's perfect. Commendable pricing and delivery experience by The Audio Store.
Excellent Iem with a study metal design and a really good cable and carry case in the box. The gold nozzle can be a bit too sharp for some people, as I found it to be fatiguing after and hour or so of listening. The treble is nice and airy and the bass has enough of a punch with good definition. All in all I'll say this on is a blind buy.
amazing sound and build quality at this price
This is the one of the cleanest audio
One of the best well balanced and detailed sounding headphones bass it tighter quickly responds to eq
I upgraded my iem from fiio jd1 to kefine klean sv.i can listen to every detail and instrument in the song
My first IEM & I’m loving the detail. Not an audiophile, but I like how it sounds. Will update my review later...
It's a really good IEM. Its clarity and natural feel are prominent features. It's also super comfy.
Had good experience with product, also fast delivery from Audiostore!!
K
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As an all rounder it fits my taste quite well,the only problem it really has is the male vocals being a bit recessed (not terribly recessed if you use vocal eartips),they are a tad bit overpriced seemingly,divine planar might be better,but for people looking for a fun entry into iem's,it's worth the price (some people say it's included DAC isn't enough,it works well enough as a temporary solution,yet to test if a dac makes a big difference or not).
Unsure if this is how most iem's are but the cable felt a tad bit short.
I had never used an IEM before, so this was my very first experience and I was genuinely impressed. As someone who loves music, I can confidently say this is one of the best investments you can make for audio quality. The sound is exceptional and absolutely worth the price.
To get the best possible audio experience, I would also recommend pairing it with a good-quality DAC, as it significantly enhances the overall output. ....
This is the most balanced sounding IEM I've used in this price. I am using the Type C variant, and I haven't experienced any issue regarding the playback whatsoever. It is equipped with the DAC chip CX31993, which is found on the dedicated DACs around the price of 1K. The cable is also a 4-core silver plated copper one, with really nice build quality. These are also really responsive to EQ Settings, tweaking the audio balance using a 10 or 31 band EQ makes the experience even more versatile.
The only cons I have noticed are regarding the in-box ear tips, I didn't find them to be very comfortable, so I had switch them with some other ear tips. Although, the metal built of the IEMs give them a really premium feeling, the glossy surface is extremely prone to scratches and they still get scratched even after using cautiously.
It is good but could be a bit sharp sometimes may be balanced by EQ. But one problem in my type C unit, after 3 days it stop sound out of nowhere, while listening music, or watching movie/yt. Have to plug out plug in to get the audio back.
This is a magical DAC, I don’t believe ki isne mere headphones main jaan daal di ho
Really the quality of aurora ultra is out of the box , literally if you never use an iem and experience first time you feel actual music. Aurora ultra give life best experience.
This is only possible because of the audio that my first experience and the audio store surve there best to just create my best experience thanks a lot for protective, timely delivery and
Again thanks for giving that service and seamless experience to the team
AUDIOCULAR DAC Recommend asome sound quality it's pushing
Aswome experience with kz castor pro harman target Bass edition I never heard that quality of
Bass My second experience with iem aswome
Good and Trusted Place for earphones and headphones who are audiophile. I recently purchased the Moondrop Golden ages 2. The Product is genuine and new.
Thanks. The Audio Store.
This can indeed be an endgame purchase. It ticks all the boxes well and ensures a great fit and amazing audio quality
Amazing single DD iem , the ceramic dome diaphragm is incredibly fast, the transient response is excellent which makes the instruments separation really good, mid bass is punch is excellent, the kick drums have incredibly fast attack, with enough weight and fast decay, the sub bass rumble is not much (good from gaming pov) vocals are quite forward and have good weight, highs can be a bit fatiguing for many but the driver has been tuned that way for gaming, the imaging and soundstage is holograhic, footsteps are other audio cues are very easy to pin point accurately.
Nice product and quality also good😊 sound is awesome only bass is not high else verything was perfect. Happy with the product.
The best IEM Earbuds at this price with Planar Drivers and Bluetooth 6.0 and the cherry on top of having a LDAC truly a Audiophile's dream.
This is my first IEM , I have been watching lots of iem videos and comparison to find a right pair for my purpose ( mainly watching movies of all genre and music ) .
I was about to purchase kz duonic but one of the youtuber suggest earacoustic cipher gaming as an better version of kz duonic.
It have really good bass and also have wide sound stage for my purpose.
I'm absolutely enjoying this one.
So this was my first ever iem. I think I picked the right one Choosing this. The one I got is type c with mic the mic is not that much but the iems are amazing. Has good details and sub bass. And for me I play a ton of games the details I'm getting on this is just crazy.
