Kefine Delci
The Kefine Delci pairs visceral, controlled bass with natural vocals, lively yet smooth treble, and an engaging warm-neutral balance that flatters long listening sessions. Prime Audio Reviews praised its cohesive musicality, while Giz Audio highlighted its unusually convincing timbre and value in the budget IEM class.
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Deliciously Crispy
Sound Quality
89/100
Fit Comfort Isolation
91/100
Build Accessories
90/100
Value for Money
94/100
Pros
Impactful, textured bass delivers satisfying slam and sub-bass rumble without obscuring the rest of the mix.
Natural, full-bodied vocals and instruments are a standout, with smooth upper mids that avoid shoutiness.
Lightweight aluminum shells offer excellent long-session comfort, supported by a capable cable and useful carrying case.
Cons
Generous bass and low-mid warmth can introduce mild bass bleed, softening lower-mid clarity and making some vocals sound less natural.
Soundstage width is average for the class, despite good layering and imaging.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 89/100
Reviewers consistently describe the Delci as a warm-neutral, bassy but well-balanced single-dynamic IEM with notably natural vocals and a controlled, lively top end. Its technical performance is strong for the sub-$100 class, though its fuller bass can slightly soften lower-mid detail and the stage is more convincingly organized than unusually expansive.
Bass
90/100
Bass is repeatedly praised for impactful sub-bass rumble, satisfying physicality, texture, clean leading edges, and generally controlled decay. Audio-In Reviews notes that the generous quantity can become slightly unbalanced and bleed a little into the lower mids, but considers its overall bass quality unusually strong at the price.
Midrange
90/100
Reviewers find the midrange natural, smooth, and richly weighted, with articulate vocals that retain body without becoming shouty. The low-mid warmth gives male voices and instruments welcome heft, although Audio-In Reviews occasionally found that added warmth a little unnatural.
Treble
90/100
The treble is widely described as natural, detailed, energetic, and controlled rather than harsh, with cymbal texture and enough upper-end openness to avoid sounding dull. Giz Audio hears a little peakiness and Audio-In Reviews notes some spice, but both still regard the tuning as unusually well judged for the class.
Resolution Separation
88/100
Reviews place its detail retrieval and separation among the better options around this price, with strong microdetail and particularly capable midrange separation. It is not presented as dramatically above every rival technically, but reviewers find it competitive with leading budget alternatives.
Soundstage Imaging
87/100
The Delci images precisely, with clearly located instruments, useful layering, and good forward depth. Its width is described as average for an IEM, while Tone Deaf Monk found its overall three-dimensional staging notably above average.
Dynamics Coherence
90/100
Reviewers praise the engaging, cohesive presentation and particularly strong bass dynamics, speed, and transient definition. Prime Audio Reviews describes the frequency range as blending into an enjoyable whole, while Tone Deaf Monk found dense string passages convincing and expressive.
FIT COMFORT ISOLATION PERFORMANCE 91/100
The small, light, rounded aluminum shells earn highly consistent praise for secure everyday wear and long-session comfort. Reviewers also report a dependable seal with the supplied tips and good passive isolation, though isolation is not described as exceptional stage-monitor level.
Seal Stability
91/100
Reviewers report that the shell shape, nozzle length, and supplied tips make it easy to obtain a good seal. No reviewer identifies recurring seal loss, bass inconsistency, or instability during use.
Comfort
94/100
Comfort is a major strength: reviewers repeatedly call the Delci very comfortable, lightweight, and well suited to extended listening. Prime Audio Reviews wore it for most of a day without soreness or hot spots, crediting the smooth finish and rounded, compact shell.
Isolation
87/100
Prime Audio Reviews reports pretty good passive noise isolation. Other reviews focus more on fit than attenuation, but none flags isolation as a practical weakness.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Accessories
90/100
The CNC-machined aluminum shells are described as robust, light, neatly finished, and durable-looking. Reviewers also praise the detachable two-pin copper cable, useful selection of silicone tips, and compact carrying case with room for the IEMs and small extras.
Value for Money
94/100
At its regular $75 price and frequent $59 sale price, reviewers repeatedly regard the Delci as an unusually compelling sub-$100 option. Giz Audio calls it one of the best-value choices for this signature, while Tone Deaf Monk says the sale-price proposition is exceptional.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
Online Reviews & Mentions
YouTube Reviews
Forum Mentions
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Specifications
- Style
- In-ear
- Driver type
- Dynamic driver
- Driver Size
- « 10 mm
- Frequency response
- 20 Hz - 20K Hz
- Sensitivity
- 108 dB +/ - 3 dB
- Impedance
- 28 0 +/-15%
- Cable length
- 1.2 M +/-0.2 M
- Plug size
- 4 3.5mm SE
- Weight
- 5.3 g for one side
Manufacturer's Description — Kefine
1. High resolution sound from DLC diaphragm
2. Powerful bass made by dual-cavity driver
3. Light & elegant design by CNC machining
4. High quality detachable cable ensures sound balance
10mm DLC+PU Diaphragm Dynamic Driver IEM
High resolution sound from DLC diaphragm. / Powerful bass made by dual-cavity driver Light & elegant design by CNC machining
Light & comfortable design
It is only 5.3g for one side earphone, which is only 50% of the weight of the earphones made by metal injec-tion. The earphone housing is made by CNC machining out of single piece of aluminum alloy, which makes it one of the lightest metal earphones. This ensures extremely comfortable wearing.
Durable & elegant housing
The beautiful metal finishing on the earphone housing is achieved through precise CNC machining, polishing and anodizing on aviation aluminum. There is no worry about scratching or paint drop off.
The gunmetal color of the earphone housing shows the texture for metal material. It makes an elegant design and high end building quality.
Clear & powerful sound
The 10mm dynamic driver is made of DLC (Diamond-Like Carbon) and PU composite material.
DLC helps to make high definition sound with good energy on treble, while PU materials and dual-cavity driver construction make powerful and rich bass with amazing atmosphere. This is the best combination for the material and driver design, as DLC usually makes bright sound and tight bass, and PU materials helps to improve bass and make the sound balanced.
Excellent matching cable
The dual-color cable is made of 164 copper wires (54x2+28x2). After testing many different cables, this one makes the best balanced sound with the combination of DLC diaphragm, which helps to produce warm and rich sound, as well as great clarity.
2-pin interchangeable design
Delci is equipped with 0.78mm 2-pin detachable cable, which gives wide compatibility with aftermarket cables, so as to explore the earphone potential to its maximum capability.
Rich accessories
There are 6 pairs of extra eartips and a hard carrying case for each Delci earphone. 2 different kinds of eartips are included. One is bullet design with small holes for more bass, the other is bowl design with UV finishing and big holes for more transparent sound.
Package content
- 1. Delci earphone: 1 unit
- 2. Hard carrying case: 1pc
- 3. UV eartip in size L/M/S: 3 pairs
- 4. Silicone eartip in size L/M/S: 3 pairs
- 5. User manual: 1pc
- 6. Quality certificate: 1pc
Verified Dealers
Online Dealers
All Dealers
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Authorized dealers for Kefine Delci
- A1 Futureshop — online and in-store — North Rocks, New South Wales, Australia (website)
- ARK Audio — online and in-store — Borensberg, Östergötlands län, Sweden (website)
- Audio 46 — online and in-store — New York, New York, United States (website)
- Audio Domain — online and in-store — Stadtbezirke I, Nordrhein-Westfalen, Germany (website)
- Eden Audio — in-store — Cotford Saint Luke, England, United Kingdom (website)
- Headphone Zone — online and in-store — Laxmi Industrial Estate, Maharashtra, India (website)
- HiFiGo — online and in-store — Kowloon, Hong Kong (website)
- Linsoul — online and in-store — Shenzhen, Guangdong Province, China (website)
- Star Picker — in-store — Sea Park, Selangor, Malaysia (website)
- Wener Musica — online and in-store — Barcelona, Catalunya, Spain (website)