DRIVER TECHNOLOGY

The Kefine Klean uses a high-performance 10 mm dynamic driver engineered with a rigid composite diaphragm for superior speed, low distortion, and natural timbre. Its driver is tuned to deliver clean bass response, lifelike midrange, and smooth upper frequencies without harshness. The CNC-machined metal housing provides excellent acoustic damping, reducing unwanted resonance and improving transient clarity. With a single-driver configuration and optimized internal airflow, the Klean achieves a cohesive, phase-accurate presentation that feels pure and highly resolving—true to the philosophy of single-DD audiophile design.

TUNING PHILOSOPHY

Kefine tuned the Klean for a neutral-clean, reference-oriented sound with an emphasis on accuracy and timbral realism. Bass is tight and articulate rather than boosted, offering texture and definition over quantity. The midrange is transparent and uncolored, giving vocals and acoustic instruments a natural, lifelike character. Treble extends cleanly with controlled energy, avoiding peaks or sibilance. The overall signature is balanced, coherent, and highly fatigue-free—ideal for long listening sessions and perfect for people who value tonal honesty over coloration.

CABLE, CONNECTIVITY & INSIDE THE BOX

• Detachable 0.78 mm 2-pin cable for easy upgrades.

• 3.5 mm termination for universal device compatibility.

• CNC-machined metal shells with ergonomic fit.

• Silicone eartips (S/M/L), storage pouch, and documentation.

The inclusion of a detachable cable and durable metal housing makes the Klean a long-term, reliable daily driver for audiophiles.

OUR VERDICT

Who it’s for: Ideal for audiophiles who want a neutral, accurate single-dynamic IEM with excellent timbre and clarity. Perfect for vocal lovers, acoustic genres, and anyone who prefers reference-style listening.

Strengths: Clean, controlled bass; natural mids; smooth extended treble; cohesive single-driver imaging; premium full-metal build; detachable cable; extremely comfortable for long listening.

Limitations: Not tuned for bassheads; listeners who prefer strong V-shaped excitement may find it too neutral; soundstage is realistic but not exaggerated.

Value: Excellent—Klean delivers genuine audiophile tuning, premium construction, and remarkable refinement for its price. It is one of the most compelling single-DD choices in its bracket.

AFTER-SALES & WARRANTY (SHARMAZ NEPAL)

Kefine Klean comes with a 6-month warranty covering driver defects, channel imbalance, or internal failures. Accessories such as eartips and cables fall under a 15-day replacement policy. Sharmaz Nepal provides fit assistance, source recommendations, and tuning guidance to help you get optimal performance. Physical or moisture damage isn’t covered, but affordable repair and replacement options are available.

Brand: KEFINE

Model Name: Klean

Driver Type: Single Dynamic Driver

Driver Size: 10 mm

Diaphragm Material: DLC (Diamond-Like Carbon)

Driver Structure: Dual-cavity design, N52 magnets

Impedance: 32 Ω ±15%

Sensitivity: 107 dB ± 3 dB

Frequency Response: 20 Hz – 20 kHz

THD: ≤ 0.2%

Shell Material: Alloy-casting metal housing

Tuning System: Interchangeable nozzles (Warm Silver / Bright Black)

Cable Type: Detachable 0.78 mm 2-Pin

Cable Material: Silver-Plated OFC

Plug Type: 3.5 mm

Replaceable Cable: Yes

Inbuilt Mic: No

Style: Ear Hook