Kefine Klean: The Perfect $50 Starter IEM ... ?

Pros

• Exceptional build quality
• Great stock cable
• Small and comfortable fit
• Interchangeable nozzle
• Tight, controlled bass
• Sparkly treble
• Good treble extension 
• Good overall technicalities 

Cons

• Bass lacks a bit of body
• Slightly hollow midrange
• Shrilly upper midrange
• A bit harsh and sibilant 
• Slightly metallic timbre

Disclaimer

• Huge thanks to HiFiGo for providing the opportunity for me to review the Kefine Klean by providing a review sample for me. I really do appreciate it. However, all thoughts and opinions are my own, and are not influenced in any way. 

• Please take this review with only a grain of salt, as everyone's hearing, fit, and gears may differ, so our experience may be different.

Price(MSRP)

• $49.00

Ear tips

• Dunu S&S

Drivability

• Fairly easy to drive.

• Any decent, modern dongle DAC/Amp should be more than sufficient. 

Packaging

• Kefine Klean. 

• Storage case
• Pretty decent case for the price. 

• Ear tips
• 3 pairs of ear tips

• Feels like generic silicone ear tips, nothing special. 

• High-purity silver-plated copper stock cable

• One of the best stock cables in the price range imho. 
• Well braided, soft, and very comfortable. 
• Although not the thickest, I think it is more than enough to be comfortable and sturdy. 

• 1 pair of nozzles

(Picture from official HiFiGo site)

Build Quality

• Build quality is INSANE and EXCEPTIONAL.

• May be one of the most well built IEMs to me, regardless of ANY price point.

• Lightweight, super sturdy, and very stylish finish. 

Fit

• Small and comfortable, with a pretty standard nozzle length and width. 

• I have no issues with the fit at all. 

Tonality

• V shaped

• I only use the default Silver nozzles, as I find the Gold nozzles emphasized on the cons and made it even more sibilant and sharp. 

Bass

• Balanced between sub-bass and mid-bass

• Sub-bass has good extension, providing a satisfying rumble.

• Decent slam while being surprisingly tight, controlled, and snappy.

• Lacks body, making the bass feel lean and somewhat lacking in fullness despite its control.

Midrange

• Lower Midrange: 

• Strangely on the hollow side despite the extra mid bass, lacks the bit of warmth that would make it feel fuller.

• Clarity over weight, which leaves it feeling a bit thin. Perhaps having too much upper midrange affects this as well.

• Upper Midrange: 

• Very forward and energetic, which gives female vocals a very pronounced presence.

• Can be a bit shrilly due to the lack of note weight.

• Can also be shouty for people who are sensitive to upper midrange.

Treble

• Treble is sparkly with decent smoothness but there are some quirks.

• The lower treble energy is quite noticeable, making the sound somewhat harsh and sibilant at times.

• Despite this, the treble extension is fairly natural, with a good sense of air and extension without being overly metallic, which is particularly impressive for a single DD IEM.

Technicalities/Others

• Good detail retrieval for the price. 

• Separation and staging are above average, with good width but only average depth. 

• Imaging is decent but not exactly holographic. 

• Timbre is slightly metallic, with a lighter note weight that feels thinner but still quite natural.

Conclusion

• Great overall package for under $50 especially with the exceptional build and inclusions, plus the IEM itself sounds pretty decent for the price despite all my criticisms.

• Definitely not the best sound IEM at its price point, but a good sounding IEM nonetheless.

• Can’t quite compete with more expensive options in my opinion, but still it's a very solid choice for beginners.

Thanks for reading!