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Description
KEFINE Quatio Hybrid IEM – Precision-Tuned Versatility, Now in 2DD+2BA Hybrid Format
Discover KEFINE’s first hybrid IEM – the Quatio, a premium 2DD+2BA configuration built to deliver a rich, immersive, and musical listening experience. Designed for audiophiles seeking both technical finesse and tuning flexibility, the Quatio features a quad-driver architecture with two dynamic drivers (10mm DLC + 8mm PU+LCP) and dual balanced armatures, delivering exceptional clarity, impactful bass, and refined highs.
What sets the KEFINE Quatio apart is its dual-way crossover system—a combination of physical acoustic channels and electronic crossover boards, ensuring each driver is precisely tuned for optimal performance. Whether you're enjoying jazz, classical, EDM, or vocal-centric tracks, the three interchangeable tuning nozzles (Warm, Balanced, and Neutral) allow you to tailor the sound to your preference.
Housed in CNC-machined aluminium alloy shells, the Quatio combines sleek aesthetics with superb ergonomics. Each shell is polished, anodised, and crafted with ultra-fine tolerance (0.01mm) for a snug, fatigue-free fit.
Bundled with a high-purity silver-plated copper cable, this IEM also features a modular plug system that supports both 3.5mm single-ended and 4.4mm balanced outputs—perfect for pairing with portable DACs and players.
Whether you're a seasoned audiophile or a passionate newcomer, the KEFINE Quatio offers a complete, adaptable, and high-resolution listening experience like never before.
🔍 Key Features
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✅ 2DD + 2BA Hybrid Drivers – Dual dynamic and dual balanced armature configuration for layered, musical sound.
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✅ Three-Way Hybrid Crossover – Physical tubes + electronic crossover for seamless frequency separation.
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✅ Replaceable Tuning Nozzles – Includes 3 nozzle sets (Gold: Neutral, Silver: Balanced, Black: Warm).
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✅ Premium CNC Aluminium Shells – Ultra-light, precision-built metal cavities for durability and comfort.
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✅ High-Purity Silver-Plated Cable – 4-strand braided cable with 392 cores for clean signal transmission.
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✅ Modular Plug System – Includes both 3.5mm and 4.4mm terminations for flexible device pairing.
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✅ Variety of Eartips Included – Ensures a perfect seal and customized comfort for every listener.
📊 Technical Specifications
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Driver Configuration: 2 Dynamic Drivers (10mm DLC + 8mm PU+LCP) + 2 Balanced Armatures
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Impedance: 32Ω
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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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Cable: 4-strand silver-plated oxygen-free copper
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Termination: Modular (3.5mm + 4.4mm included)
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Shell Material: CNC-machined Aluminium Alloy
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Tuning Options: 3 replaceable nozzles (Warm, Balanced, Neutral)
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First of all I want to thanks TheAudioStore for customer care, well packaging and prompt delivery. Regarding the sound and comfort, I could not gone through all details since I got this only yesterday. Though it is little bulky, I am not feeling much uncomfortable while wiring it. As reviewer says that the quatio is bass forwarded profile maintaining its clarity across all frequency range.
Got this as my first iem from audio store.. much much more worth than the price.. the bass!!.. my gawddd, it's something which is gonna surprise you.. I got it paired with the moondrop echo a dac.. and trust me, couldn't have asked for anything better.. and the delivery was done to me in kolkata, just within a day.. remarkable job audio store!♥️
Fit is not good but sound quality for music specially is excellent . Love them
If you want a set which is energetic and aggressive, if you are into hip hop tracks this is not for you. This set got that bass but missing that fun factor
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The KZ Castor Pro is one of the best entry-level IEMs I've used in this price range. The sound quality is impressive, with clear vocals, detailed instruments, and punchy bass that doesn't overpower the mids. It offers excellent clarity, making every song enjoyable.
It's also a fantastic choice for beginners who want to experience audiophile-grade sound without spending a lot of money. Whether you're listening to music, watching movies, gaming, or enjoying podcasts, the audio feels clean and immersive.
The comfort is good for long listening sessions, and the build quality feels solid. If you pair it with a decent DAC, the sound becomes even better with improved detail and separation.
Overall, I highly recommend the KZ Castor Pro to anyone looking for an affordable entry-level IEM. It offers outstanding value for money and is a great starting point for anyone entering the audiophile hobby.
I can catch all the little details in songs with the hi-res audio. I chose these earphones to enhance my movie-watching experience, and they do the job. I watched a bunch of scenes from 'Dhurandhar: The Revenge' over and over, and these IEMs gave me a hell of an experience! It felt like I was watching this movie in a theatre for the first time.
Big thanks to The Audio Store for bringing these experiences to us!
Overall very Good product but value for money is High
Excellent IEMs for the price. The sound quality is clear and detailed, with great instrument separation and balanced tuning. They're also comfortable for long listening sessions. Definitely one of the best options in this 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.
for me this is a game changer it helped me a lot .
value for money
it supports in all devices including macbook and ios devices .i am really satified with purchase . thank you
The Audiocular Beam Portable DAC is definitely worth it. The metal build along with the braided cable feels reassuring and sturdy, and the DAC never felt considerably warm even during longer listening sessions. It also maintains a somewhat neutral sound signature as far as I can tell, and noticeably increases the perceived volume of my KZ Castor Pros. Furthermore, I personally haven't heard any hissing noises on my IEMs, if that is something you're worried about. Finally, the red LED ring light is a cool touch, if a bit gimmicky and distracting during late-night listening sessions, but the bonus Audiocular carrying pouch along with the Type-A converter included in the package is what makes this a great deal. If you're looking for a DAC around ₹1,000, you should certainly consider the Audiocular Beam.
Clean, refined, and smooth audio! Absolutely a great product.
Such a good product is it and the quality of is top notch.
Really happy with the GK Kunten. The build quality feels premium for the price - sturdy metal-look faceplates and a nice detachable braided cable that doesn't tangle easily. Fit is comfortable even for longer listening sessions thanks to the ergonomic shell shape.
Sound-wise, the dynamic driver delivers a full, balanced signature — punchy bass without being overdone, clear mids, and decent treble extension without harshness. The inline mic is a nice bonus for calls.
For the price after the discount, this is excellent value. Packaging was neat and delivery was quick. Would recommend to anyone looking for 'id entry-level IEM upgrade
Cristal clear sound quality.
"Unbeatable planar clarity, smooth treble, and deeply immersive soundstage at this price point!"
I recently purchased the Letshuoer S12 Ultra from The Audio Store, and pairing it with my Samsung S24 Ultra, FIIO BTR17 (via 4.4mm Balanced), and Apple Music Hi-Res Lossless has been nothing short of extraordinary. It delivers a truly world-class listening experience!
Key Highlights:
Planar Technicalities & Imaging: The 14.8mm Planar driver offers lightning-fast transients, laser-sharp instrument separation, and a surprisingly wide, holographic soundstage.
Smooth & Energetic Tuning: Compared to earlier S12 iterations, the Ultra brings a much smoother upper-mid/treble presentation with zero sibilance, while retaining authoritative, deep sub-bass rumble.
Synergy with BTR17: The dual ES9069Q DAC and clean THX amplification from the FIIO BTR17 give the S12 Ultra all the juice it needs to shine.
Build & Accessories: Excellent CNC aluminum shells, ultra-comfortable ergonomics, and a modular 3.5mm/4.4mm silver-plated cable right out of the box.
Verdict:
If you want an endgame-level portable audio setup without breaking the bank, look no further. Kudos to The Audio Store for the lightning-fast delivery and top-notch packaging! 🎧 absolute recommended!
The DAC works like a charm. Works with various devices. Recommended even if it does not come with PEQ. Try Equalizers of your choice to tune the sound as per your taste. I have paired it Duonic (improved bass version)
Just received my order and these little thing is fabulous. Like it just increased my iems potential. Solid quality and looks premium. Easy to carry comes with a fabulous quality case which you can use to store your iems too. Moreover there was really a difference without it and with it in sound and overall. So go for it without any hesitation ✌️
The audio quality is amazing. The noise barely escapes to outside. Overall a great purchase worth the price
