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Kefine Delci


DriverDLC+PU Dynamic driverDriver Size10 mm
Frequency Response20 Hz - 20 kHz
Sensitivity108 dB +/- 3 dB
Impedance28Ω +/- 15%
Cable Length1.2 meters +/- 0.2 meters
Plug Size3.5mm single-ended
Weight5.3 grams for one side


Kefine Delci at its core lies a 10mm LCP + PU dynamic driver, delivering a rich and immersive sound signature that spans from the deep rumble of 20Hz to the crisp highs of 20kHz. With a sensitivity of 108 dB +/- 3 dB and an impedance of 28Ω +/- 15%, the Delci IEM strikes a balance between efficiency and compatibility, ensuring it can be driven easily by a variety of devices while maintaining clarity and fidelity.

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Weighing in at just 4.8 grams for one side and made out of a one piece of solid aluminium by CNC machining which i heard took about 48 minutes to make just one earphone shell, the Kefine Delci is feather-light compared to some metal-shelled single DD items in the market which are heavy and i suspect made out of a cheaper die-casting which is brittle, cracks easy and prone to paint chipping.

The Delci at just 4.8 grams using my timemore coffee scale compared to Simgot EA500 with a weight of 10.6 grams.



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Kefine Delci delivers where it counts in terms of sound quality. From the deep, rumbling bass to the crystal-clear highs, every nuance of your music is faithfully reproduced with precision and clarity.

One standout feature is its strong bass, particularly in the sub-bass range, which adds depth and richness to the sound without overpowering other frequencies, Mids are little recessed but vocals are lush and natural sounding with expansive soundstage providing a sense of immersion. the sparkling treble adds clarity makes every micro macro detail of your music shine through without sibilance.

Bass is impactful with resonating sub bass rumble, mid bass is fast tight and punchy does not bleed in to the mids.

Mids steps back just enough to add more space to the already big soundstage it lush and natural sounding, warm while maintaining clarity.

Treble is bright sparkly enhancing micro macro detail retrival and instrument separation adding to a more holographic sound experience.


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Delci checks all the boxes i want in an iem, it has the crisp clarity and technicalities of simgot ea500 and the sub bass slam and mid bass smoothness of Hidizs mp145.

This is my new favorite sub 100usd iem Kefine Delci! it will immerse you with your favorite tracks with its powerfull smooth bass and indulge your craving for clarity and details with its well extended sparkly treble and the organic natural sounding mids that you get only from a well tuned dynamic driver. Subtle and elegant looking design, compact lightweight ergonomics fits and seals well in my ears.

In conclusion, the Kefine Delci IEM stands out as a compact powerhouse, offering exceptional sound quality and technicalities, comfort, and versatility in a sleek and portable light weight package, Delci delivers a performance that punches above its weight.


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