Introduction
CVJ is one of few chi-fi company that’s gaining their popularity in other western and eastern with many model released in their cataloge
KE-S is one of their latest option, with the main objective of trying the be as cheap as possible, without sacrificing too much in terms of sound quality and music enjoyment.
I would like to thank CVJ for giving me this unit in exchange for an honest review.
Design/Build quality
With the cost at 10$, it’s exactly like what I would imagine. The whole construction is made out of plastic, which is fine by the way. It’s smooth, light and very comfortable. The housing and faceplate are 2 seperated pieces that was glued together.
I’ve decided to opt for the grey colorway, so that I can see clearly the driver inside
The nozzle is on a medium size. I’ve installed other 3rd party tips with no prolem
Stock cable and tips feels absolutely cheap. In order to wear it long enough to write down a review, I’ve decided to change the cable to a cheap SPC cable from Xinhs. The rest of my sound impression will be with me using said cable and stock tips.
Sound impression
Test track:
- Shivers – Ed Sheeran
- Spider man 3 OST: Drive That Funky Soul
- Highway to Hell – AC/DC
- One Last Time – Ariana Grande
- Runaway Baby – Bruno Mars
- POP/STARS – K/DA
- Blank Space – Taylor Swift
- Free Bird – Lynyrd Skynyrd (the bass rift session)
- Golden Hour - JVKE
- Love You Like A Love Song - Selena Gomez
Tonality: V-shaped
Bass
The bass region of the KE-S is very well elevated with subbass over midbass. Bass is obviously the star of this iem. The quality of the bass is average, which is good for this price. Subbass rumble is very firm, midbass has a lot of punch to it. On normal pop music, it performs adequately in terms of accurate reproduction. Kick drum, cello and bass guitar has lots of heft and body to it. However, on a more challenging rock or metal or songs with more complex bass line, the bass notes sort of feels smear together, not very well defined.
Mid
Recessed mid with slighltly veiled characteristic. Noticable bass bleed. Male vocal got good warmth, good body to it. Females sounds engaging, energetic, though not the most natural in my experience. However, both vocal got that veil feeling over it due to the bass.
Instruments on the other hand is on the acceptable level. Piano got good presentation, but violin sound a bit laid back, like one step backward in the stage
Treble
The treble is on a safe side. Microdetails and nuances act as a more backstage support for the bass and mid instead of being more forward. I can pick it out of the tracks just fine; however, stuff like hi hats and cymbal strikes don’t have that familiar shimering sound that I’m familiar with.
Technicalities:
Technicalities is below average. The sound stage is very 2D with almost no height with average width and depth. Imaging and seperation is also poor, all the elements of the songs sort of blend together. The resolution just feels a bit blunted. The timbre is not the most natural I’ve heard, especially coming from a 1DD. The overall dynamic of the iem just have so much more to be desire
Driveability
The CVJ KE-S is very easy to drive, even through my phone’s passive dongle. For most of the review, I’ve paired it with my trusty 7hz 71
Comparison
Vs 7hz Zero
The 7hz Zero has much less bass, brighter, has more clarity and overall have one notch better technicalities compare to the KE-S. Vocal and instruments sounds cleaner with better texture and timbre. If bass is the most important to you then the KE-S takes the win. However, if you value mid, treble and the overall tonal balance as well as ready to spend an additional 10$, then 7hz takes the win
Vs QKZ HBB
Both the QKZ HBB and the CVJ KE-S has a lot of similarities, where both has I would say a V-shape tonality and similar technical perfomance. However, the QKZ HBB house a more thumping, visceral bass, darker uppermid range and with slightly better treble extension. The QKZ HBB has better overall macrodynamics to my ears
Vs Simgot EA500
It’s not really a fair comparison, since it’s 10$ vs 79$. However, I want to show what an iem that’s 8 times more expensive (and it’s also the value champ in my book) can do compare to it’s counter part.
The EA500 is league better than the CVJ KE-S (obviously). The overall tonality is a milder V-shape with subbass roll off and brighter tonality. The bass feels more thumpy, have better texture and you can feel the speed, the quality of the driver itself just from the bass region. Mids on the EA500 sounds more forward with better clarity. Treble is much more emphasis; cymbal strikes and bass guitar, as well as other instruments have better decay. You can just perceive more details from the EA500. The overall dynamics of the EA500 just feels more… engaging, fuller, more satisfied. Soundstage wise, EA500 is at least 3 notches better compare to the KE-S, with better imaging and seperation to add up.
Conclusion
In and of itself, CVJ KE-S is a good solid option for 10$. Sound alone, i would have leave it at 2.5 stars. However, due to the value (price/performance) of this iem, i've brought it to 3.5. CVJ have done a terrific job to introduce iem to those that have extreme limited budget. If 10$ is all you have, KE-S is all you gonna get. But truth be told, if you can save up a little more, expand your budget up until 20$, or even 30$, you will have a wider range of choices for good iems like the Truthear Hola, Tangzu Waner, Blon Z300, QKZ HBB,…
But credit where it’s due. Thank you CVJ for making this model for the masses and thank you once again for giving me the opportunity to review this iem. I’m looking forward to see what you may bring in the future