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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 balanced, clean sound with excellent clarity and instrument separation. "Best budget IEMs" many said, noting good build quality and comfort. The tunable nozzles provide versatility. Some found them heavy for long sessions and noted treble can be fatiguing. Bass is tight but may lack punch for bassheads. Paint chips off over time.
- Very clean sound with good instrument separation and soundstage
- Excellent build quality and in ear comfort, versatile for a variety of genres
- My mind is blown listening to the vocal clarity and instrument separation
I've been enjoying the KEFINE Klean SV so far. The bass is impressive, with a good balance that changes depending on the music genre. It delivers an enjoyable listening experience across different types of music.
The build quality and design are also appealing, and the fit feels comfortable. The included Black nozzle is my current choice, and I'm enjoying its sound signature.
Overall, a great listening experience and a good choice for anyone looking to explore quality IEMs.
Comfortable, stylish, and featuring a natural sound signature. The incredibly affordable price is just a bonus.3 type of nozzle change your music expression thank you for your very fast delivery and package ♥️♥️♥️♥️♥️🎉😍
I am very satisfied with the purchase from The audio Store. I wanted a balanced sound IEM as I listen to all type of music. I am coming from a TWS community where I use Nothing ear 2024 ,earlier used oppo enco ear 2 pro and oppo enco M31.
Sound Signature :
I found the sound of this IEM is very clean with good instrument separation and good sound stage. If I talk about the base , deep base rumble is present but don't expect Good punch , Kick drum and guitar base sounds excellent. Both male and female voice feels heavenly to my ear. I am little treble sensitive so I found little uncomfortable when it comes to high frequency.
Pros :
1. Build Quality is superb
2. Very comfortable to wear for long listening.
3. It sounds excellent in my opinion
4. We get 3 different nozzle filter for different sound Signature. And it actually works but don't expect huge difference.
Cons :
1. It has little 'hishis' sound in the high frequency, not sure if it is coming because of the dac I am using (audiocular beam) .
Comparison :
If I compare with my Nothing Ear 2024, I will say it better than Nothing Ear in terms of sound quality and instrument seperation and I prefer bass in my Nothing Ear 2024 .
Final Conclusion : It stands with the expectation.
Kefine klen sv is clean and awesome
Very balanced sound signature that can be tuned to the way you like with a DAC. Ability to satisfy a listener with a wide variety of tastes.
Kefine Kean SV is a good IEM for the given price tag . Tunning nozzle definitely have a difference in sound to them . They are good looking as well Buds are little heavier when compared to generic wired or wirless earphone . Length of the wire is good but it can get tangled but takes less effort to correct
the klean iems are clean asf
Nice pair of iem’s. A true upgrade for me from 7hz salnotes zero (the OG) Got delivered safely and on time.
Absolute bomb! I am so happy with my purchase, these turned out to be way better than I expected. The separation, details, highs-mids-lows, the bass just enough to make it delightful.. Great value for money..
Worth buying it!!
I’ve been using it for the past two weeks, and it has performed amazingly well. I absolutely love the golden nozzles. Overall design is premium. The build quality of both the IEMs and the cable feels excellent, and everything looks and feels genuinely premium. Overall, I’m really impressed with the quality and experience so far.
As it's name suggests it's sound signature is safe and clean. Safe because it is kind of bright iem but it didn't gives you ear fatigue easily also imppresed by it build quality too . Overall a perfect product around its price range 😀
Delivery was on time, packing was nice. Product is well producted. Iems themselves are good and best in this budget range. But require specific frequency and players to get most our of them.
Clean, refined, and smooth audio! Absolutely a great product.
My first pair of IEM and I absolutely loved it🥰
I’ll recommend the audio store and purchase more in future
Worth every penny! This is not for bassheads as it lacks just a bit on the bass department, but the separation is awesome and the sound stage is also huge. Awesome for gaming as well! (Apex Legends, Arc Raiders, PUBG)
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.
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Let customers speak for us
The transperant see through window of the actual chips inside is so cool, coming to performance its perfect for my KiwiEars belle which I bought together. Will recommend
I've been enjoying the KEFINE Klean SV so far. The bass is impressive, with a good balance that changes depending on the music genre. It delivers an enjoyable listening experience across different types of music.
The build quality and design are also appealing, and the fit feels comfortable. The included Black nozzle is my current choice, and I'm enjoying its sound signature.
Overall, a great listening experience and a good choice for anyone looking to explore quality IEMs.
I was doubtful at first but it is so good. DAC is good. Go for it. The wire is thin, so be careful while handling.
As the title says, "Fits: Space Travel, Space Travel 2 and Space Travel 2 Ultra." Tried them all personally.
Comfortable, stylish, and featuring a natural sound signature. The incredibly affordable price is just a bonus.3 type of nozzle change your music expression thank you for your very fast delivery and package ♥️♥️♥️♥️♥️🎉😍
I purchased Martillo after intense research on IEM’s which are tuned towards a V shape bass oriented Harman target sound signature. They truly are the best in their class. Once you get them on, you’d never feel the urge to take them off. If you’re looking for End game IEM’s as a basshead this is a step forward in the right direction.
The performance scales well with power. Make sure to pair with an adequate DAC which has a Balanced Out to extract the max performance. The entire process of purchasing from The Audio store has been seamless and straightforward. I’d definitely recommend them for an hassle-free buying experience.
One last thing, dedicate some time to do an extended eartip roll test to find your best fit and sound profile. Cheers !
Carefull with it's wire it fragile i use rough and tough it now starting to detaching from the mic I will now use fevistick to prevent any damage sad
It's Awesome, speaker output is good , There is very good Instrument seperation, Soundstage and Imaging.
Just keep your speakers atleast 60 cm apart or more.
It does play hi res audio when you are using it wired.
Overall you can't go wrong with it.
Absolutely loving the KZ Duonic! Since this is my very first IEM, the experience has been nothing short of amazing. The sound quality is impressive and the bass is absolutely top-notch.Definitely an eargasm of an experience
If you're a beginner like me and love bass, I'd absolutely recommend going for this IEM. Also I know my review might not mean much to experienced audiophiles who specifically look for IEMs especially since my previous earbuds were Bluetooth ones but the difference has been massive. This feels like a huge upgrade and I'm genuinely loving every bit of it :D
Also a big thanks to The Audio Store for the incredibly fast and safe delivery🙌🏻
Excellent Authentic Product From HIBY, Mindful Packaging And Experience Superior Audio Performance Paired With 7Hz Crinacle Zero 2.
🎧 AUDIOCULAR SPARK Pro CX31993 + TANGZU Wan’er SG Purple Dragon Limited Edition
A Beginner's Journey into the DAC World! 🎶🔥
Being a beginner in the world of IEMs and DACs, my initial choice was the AUDIOCULAR SPARK. However, just as I was about to make my purchase, I came across its upgraded sibling, the AUDIOCULAR SPARK Pro Hi-Res Portable DAC Dongle featuring the CX31993 chipset. The upgrade caught my attention, and I simply couldn't resist giving it a try!
Paired with my TANGZU Wan’er SG Purple Dragon Limited Edition, this became my first step into exploring the world of portable DACs.
🥁 The First Two Days: Waiting for the Magic!
Honestly, during the first two days, I didn't notice any dramatic difference. There was no immediate wow factor that made me think, "OMG, this is extraordinary!"
But on the third day, everything changed!
🔥 1. Bass Impact: The Biggest Surprise!
When I pushed the volume beyond 50%, OMG! The bass seemed to come alive!
The AUDIOCULAR SPARK Pro appeared to add an extra dimension of bass enjoyment to my TANGZU Wan’er SG Purple Dragon. The beats felt punchier, the rhythm more engaging, and the overall presentation more energetic.
Whether it was the output characteristics, listening volume, or the interaction between the DAC and my IEMs, the result was genuinely exciting to my ears!
🎤 2. Vocals & Emotional Clarity
Beyond the bass, I found myself getting more immersed in the vocals and the emotions behind my favourite tracks. Listening became more engaging, encouraging me to pay closer attention to the performances rather than simply letting the music play in the background.
🎸 3. Instrument Separation & Hidden Details
I also started paying closer attention to the different instrumental layers, subtle musical elements, and rhythmic details within my tracks.
It made me want to revisit familiar songs and discover little things I might not have consciously appreciated before. That's one of the joys of exploring better audio!
🏟️ 4. Soundstage & The Live-Concert Sensation!
Here's where my excitement reached another level!
Pushing the volume beyond 60% gave me an incredibly immersive listening experience. The combination of bass impact, vocals, and instrumental energy made me feel as though I had stepped right into a LIVE CONCERT!
The sensation reminded me of being at a music festival—the atmosphere, the energy, and that irresistible urge to move with every beat.
It wasn't just about hearing the music; it was about feeling connected to it!
🤯 5. The Complete Experience!
Bass punch, vocals, musical details, and overall immersion came together to create an experience I genuinely enjoyed.
I found myself dancing to every punchy beat, completely caught up in the rhythm. It brought back the excitement I remembered from live music festivals.
For a moment, my listening session felt less like playing music at home and more like reliving that live-event energy!
⭐ Final Verdict: A Purchase I'm Genuinely Happy With!
As a beginner in the audiophile world, I'm still learning about the technical aspects of audio reproduction. However, my experience with the AUDIOCULAR SPARK Pro CX31993 paired with the TANGZU Wan’er SG Purple Dragon Limited Edition has been thoroughly satisfying.
The bass impact was my biggest surprise, while the vocals, instrumental details, and immersive presentation made the overall experience even more enjoyable.
Would I choose this combination again? Absolutely! No regrets—just great music and a genuinely exciting listening experience. ❤️🎶
💬 My Final Thought:
"I bought a DAC to enhance my listening experience. I didn't expect it to bring back the feeling of being at a live music festival!"
🎧 AUDIOCULAR SPARK Pro CX31993 × TANGZU Wan’er SG Purple Dragon Limited Edition = An unexpectedly immersive musical experience! 🔥
Totally loved my TANCHJIM Bunny..
Delivery took a while but was worth the wait.
It offers excellent audio clarity, amazing bass, and several other useful features!
I am very satisfied with the purchase from The audio Store. I wanted a balanced sound IEM as I listen to all type of music. I am coming from a TWS community where I use Nothing ear 2024 ,earlier used oppo enco ear 2 pro and oppo enco M31.
Sound Signature :
I found the sound of this IEM is very clean with good instrument separation and good sound stage. If I talk about the base , deep base rumble is present but don't expect Good punch , Kick drum and guitar base sounds excellent. Both male and female voice feels heavenly to my ear. I am little treble sensitive so I found little uncomfortable when it comes to high frequency.
Pros :
1. Build Quality is superb
2. Very comfortable to wear for long listening.
3. It sounds excellent in my opinion
4. We get 3 different nozzle filter for different sound Signature. And it actually works but don't expect huge difference.
Cons :
1. It has little 'hishis' sound in the high frequency, not sure if it is coming because of the dac I am using (audiocular beam) .
Comparison :
If I compare with my Nothing Ear 2024, I will say it better than Nothing Ear in terms of sound quality and instrument seperation and I prefer bass in my Nothing Ear 2024 .
Final Conclusion : It stands with the expectation.
Absolutely amazing speakers, very good sound quality and build. Received in proper packaging the very next day after placing order. Very good service by TAS.
