Kefine Delci Review
Intro
This review covers the latest iem from the brand-new audio brand Kefine which goes by the name of Kefine Delci. The Delci is a single dynamic driver earphone which boldy steps up to the plate against the vast market of $50 to $100 iems. Coming in at an MSRP of $79. However, the Delci went on sale to begin its life at $59 and hasn’t really budged since then. So, for this review I will simply look at the Delci as a $59 iem. Which is a fantastic price by the way! Being that Kefine is still in its infancy as far as an audio brand is concerned, I find it remarkable that they’ve crafted such a formidable entrant into the market. The Delci is only their second iem which comes only months after the Kefine Klanar (Pietro’s Klanar Review) which happens to be a planar magnetic earphone that received some very good praise. The Klanar was released in October of 2023 and the Delci in March of 2024. It appears that Kefine is about to go two for two.
Kefine
Kefine Electronics Technology Co. Ltd. was founded in November of 2022. So yes, this company is about as fresh and new as a company can be. I can tell you all, after speaking with Collin Yang (one of the founders of Kefine) that this is a brand created from a group of friends who sought out to bring to market the highest possible sound value that they can muster. I cannot begin to tell you how refreshing it is to see a small brand such as Kefine defying the odds in a saturated market. There’s something special about a small brand. Even more special is that they are a group of friends, like minded individuals who understand the market, and the community. I feel this is a company that all of us can get behind. However, none of this would even matter if their products weren’t very good. I’ve always been a fan of small operations, mom & pop shops, etc. which are born out of joy, hope, and actual risk.
Value
Kefine comes from the name of one of their founders “Ke” and the word “Refine” coupled together. They believe that “High quality is not equal to high price” and that squeezing every last cent out of the creation of their products is paramount. Kefine decided not to add any unnecessary features or accessories and the packaging is as simple as they can manage while still maintaining quality. Meaning, the money goes into the product itself. Folks, I found it was ridiculously nice to read THIS “about” section at kefineelec.com. This is what it’s all about friends! Real music enthusiasts who understand the consumer. They understand what we go through, constantly seeking the best value for our dollar. It isn’t easy to create real “value”. In this day and age especially. I think it goes without saying that I feel this is a brand to watch closely for every release they have going forward.
Delci
I love a good name folks. It’s nice to see a brand actually name something with purposeful intent. We see it from time to time, but mostly we get “number names” with “pro”, “plus”, or “ultra” attached to the end. You can tell when a product is a labor of love. When their is true passion involved you would never name your product a “number name”. You’d think of the perfect name. I realize that I’m going kind of long on this and many of you could care less. But I care and I like seeing brands that care. I actually envision the hundreds of names floating around between this group of people, searching for the perfect name that embodies the character of their product. “Delci” actually means “Pleasure, delight”. I’d say that they just about nailed that one. It’s a fine name. With that all said, let’s get into this review. The Kefine Delci…
Non-Affiliated Purchasing links:
Disclaimer:
I received the Kefine Delci from Kefine as a review sample and in exchange I will conduct a full review and feature at Mobileaudiophile.com. I have not received any payment or any other form of compensation for this review. This set is a review sample iem. Kefine has not requested to pre-read any review and doesn’t have any control over “what” or “when” anything gets published to mobileaudiophile.com. All thoughts within this review are my own, though please take note that I will always have my own biases. This is impossible to get around. I try to be as objective as my subjective self can be, but this is an opinion piece folks. Thank you to Kefine and thanks for reading.
Delci Pros
-Build Quality is very good (all aluminum)
-Design is simple but classy
-Ergonomic, extremely lite of comfortable
-For a simple unboxing, it’s very nice
-Cable is fantastic
-Engaging sound across the board
-Note weight is rich, realistic, and natural
-Deep, rotund and pretty fast bass for its quantity
-Clean warmth in the midrange, nice air and openness
-Non-Offensive treble with good extension
-Detail Retrieval is good for the tuning
-Imaging / Separation
-Wide and expansive stage for such a low-price set
Delci Cons
-Simple look may be a bit boring for some (not me)
-Those who detest bigger bass will not like is set
-Mid-bass could use just a smidgen more definition
-Not for dry / analytical lovers
-Each of these cons are very picky
Gear used for testing
–Ifi Go Blu
–Aful SnowyNight
–EPZ TP50
–Fiio Q15
–iBasso DX240 with Amp8 MK2
–Shanling M6 Ultra
Packaging / Accessories
Unboxing
Kefine states that they put less money into the unboxing experience so that they can better equip the actual earphones. Well, I’d say that they didn’t skimp all that much because the actual unboxing experience is pretty nice for a $59 iem. The box itself has a sleeve covering with a picture of the Delci on the cover, some stats on the back too. Slip the sleeve off and you’ll see a simple black box with Kefine imposed on the front. Open the box and you’ll see the Delci looking all dapper staring back at you. Next to the Delci is the carrying case. Inside the carrying case are the tips as well as the cable. I realize that I don’t really do much justice in explaining these unboxings, but I can assure you that the Delci’s is pretty good. That is always predicated on how good the actual accessories are. Altogether, not bad at all.
Eartips
Now, the eartips are actually of pretty decent quality. Kefine adds in seven pairs of tips in total. They provide four sets of dark gray silicone narrow bore tips which lift the mid-bass and slightly soften the upper mids. They also provide three sets of semi-wide bore dark gray silicone tips which elevate the lower treble and add a bit more of a distinct impact in the bass. To be completely honest, I didn’t get my best seal with any of them. I actually went with the large sized KBear 07 tips which helped the Delci fit like an absolute glove in my ears. Not to mention that with the 07’s I hear a slightly more impactful low-end while adding some vibrance up top to a degree. Seven pairs of tips at this price are nice. Couple that with the fact that the tips they do provide are actually decent. Not bad.
Carrying case
Providing a carrying case is another thing which kind of goes a hair above and beyond the usual call of duty at this price. Of course, it certainly isn’t unheard of, but I’d never expect a carrying case at $59. However, Kefine is trying to build their brand and they are thinking of the consumer here, so they did add in a case. It isn’t some ultra elegant case but it’s a nice addition. Especially for a first time iem owner or someone who uses cases a lot. I never use them but that’s me. At any rate, the carrying case is black and made of faux leather. It’s plenty large enough for the earphones, cable, extra tips and maybe a small dongle dac. This is a zipper case, and you’ll notice “Kefine” printed on the top. I appreciate the addition here and it shows that Kefine at least is trying to provide the best experience for us hobbyists.
Cable
Now, this is an area that surprised me. The cable provided is a very good wire that looks really fantastic on the Delci. Brown-on-black looks flat out dope with the gunmetal color of the Delci. I don’t know much about this cable other than it’s a 2-pin black & brown twisted cable with 164 strands of OFC copper which terminates in a 3.5 single ended jack. Folks, this is a very nice-looking cable. It has some beef to it. It isn’t some flimsy junk cable that you’ll need to swap out. The colors match perfectly in my opinion as the earphones and the cable look very nice paired together. However, I did swap cable for use with my balanced sources. I actually went with a brownish/silver 2-pin 4.4 balanced Youkamoo cable. However, for all 3.5 single ended listening (which was a lot) I was more than happy using the included cable and I think any of you would be as well. Certainly, one of the better cables offered at this price.
Build / Design / Internals / Fit
Build Quality
I was kind of blown away by the Delci. I don’t think I’ve ever had in my ears an all alloy (aluminum) iem that feels this ridiculously light. The Delci weighs just over 5 grams, and it feels like nothing in the ear. I am very pleased by this. Anyways, the Delci is made entirely of aluminum by way of CNC machining and built to last folks. This is a very durable earphone as it is solid as a rock. The Delci also has two small vent reliefs, one closer to the nozzle and one near the rear of the unit which add relief to both sides of the dual-cavity design. The nozzles are of medium length and so as long as I tip roll then I will have a wonderful fit every time. Friends, there is something to be said for a very light all alloy earphone and weighing just 5 grams is taking things to a whole new level. For $59 this type of build quality isn’t unheard of, but I do think it’s a selling point and should certainly be noted. No rough edges, clean lines, smooth transitions, with great structural integrity.
Lightweight & Elegant Design
Kefine Promotional
Experience comfort like never before with Delci’s lightweight and elegant design. CNC-machined from a single piece of aluminum alloy, Delci is both durable and stylish. At only 5.3g per side, Delci is one of the lightest metal earphones available, providing hours of comfortable listening.
Design
Now, the design of the Kefine Delci has gotten some push-back. Some folks have messaged me saying that it is pretty plain and not really up to their liking. I wholly disagree, but I am not them. I only say this because I have to be fair and speak what I know. Not everyone is going to be a fan. That out of the way, I think it’s great. I have been on a kick of late, really enjoying sets that are less “flashy”. I love an iem which has that minimalistic and bold type of design language because if it is done right then you’ll have a very fine looking iem, and the Delci is just that. I’d say the Delci has this grayish/brown gunmetal colorway from front to back and no other colors to choose from. However, when paired with the included cable, the Delci looks very nice, very sleek. There is a masculine feel to the Delci but also with a hint of elegant design as well. The more I look at them the more I am bewildered by what a hobbyist can get for only $60. At any rate, all brown except the faceplate which has a tasteful raised face with the Kefine logo imprinted on it. It’s a very nice look and I usually do not like logos or names on my faceplates. This is an earphone done right. Nice work Kefine!
Durable & Stylish Housing
Kefine Promotional
Delci’s sleek gunmetal finish is achieved through precise CNC machining, polishing, and anodizing on aviation-grade aluminum. The result is a durable housing that exudes elegance and sophistication, ensuring your earphones remain scratch-free and looking pristine.
Internals
Kefine chose to use a 10 mm dynamic driver with a DLC (Diamond-Like Carbon) and PU diaphragm with N52 neodymium magnets within a dual cavity. They obviously used some good drivers and acoustic components within the housing of the Delci, and you will understand that the moment you put these in your ears and add a little volume. No distortion, nothing that would indicate that the driver is being stretched further than its ability. Of course, we have to keep things within reason. Still, I feel that Kefine certainly did put the money into the earphones and I’m telling you people, this isn’t an advertisement, I truly believe that Kefine is a player in this game folks!
Fit
The fit for me is very comfortable. This set weighs only 5 grams! It is so very light! The Delci feels like nothing in the ear. I get a good seal right away with tips which work for me (KBear 07’s), and the rest is history. Just a very comfy iem. For me anyways. I have no idea how well they will fit you but I’m happy with that I can wear them for many hours without having any sort of issues. Isolation is also pretty good; about average I’d say. Not much different than most iems on the market.
Drivability / Synergy
The Kefine Delci is rated at roughly a 28-ohm impedance and a sensitivity of 108 db’s. Basically, the Delci is pretty easy to drive. It won’t take any crazy amount of power to get this set to good volume. However, I do feel that the Delci does improve in incremental ways using a bit more juice. I also don’t feel that the Delci reacts in a bad way too many sources. I’m assuming that the nominal tuning is such that it won’t matter as much with a warmer or cooler source. The Delci is a warm/neutral sounding earphone and so it does play nice with just about every source that I own. Also, I did notice some scaling happening with more output. Of course, I also feel that (like any set) a lot of this improvement comes through simply using better sources. However, you will notice that many times an earphone will come across with slightly heightened macro-dynamics, better separation, tighter transients, more bass impact with more actual raw power… stuff like that.
Mobile Listening
I spent time with many dongle dacs over the course of critical listening with the Delci. Out of them all I found the slightly closer to neutral sounding Aful SnowyNight as well as EPZ TP50 were my favorite. However, I do get better bass impact and weight with a device like the EPZ TP20 Pro. Listening over Bluetooth with the IFi Go Blu was a nice pairing too, especially on 4.4 balanced. However, of my Bluetooth devices I preferred the Qudelix 5k a bit more. That ES9219 dac chip has a clean response which seems to really dial in with the Delci attached. Usually, the Go Blu will outperform the 5k across the board but… synergy matters. I suppose if it was up to me and my perfect preference, I would go with a slightly closer to neutral source but that is not by any means a requirement. Mainly because the Delci really does sound great with anything I put it on.
A bit more juice…
Of my more powerful mobile devices, I use the iBasso DX240 with Amp8 MK2 attached, the Shanling M6 Ultra, and the Fiio Q15. Each is very powerful for an iem. I never have to go past low gain, though I choose to use medium gain as there is a tightening up of the spectrum. Of these devices I love all three. The M6 Ultra is slightly warmer, velvet, with its AK4493SEQ dac chip. The Delci is so nice and warm resolving with the M6 Ultra that it’s hard to put it down. However, both the DX240 (ES9038Pro dac chip) and the Fiio Q15 (AK4191 + AK4499EX dac chips) run a tad closer to neutral and synergize only slightly closer to my preferences. I won’t 100% lean any one way though and I do believe that the Delci sounds really great no matter the source tonality… within reason.
What do you need?
All you really need is a decently powered dongle dac. Shoot, you could probably get away with simply using a phone and a 3.5 jack. The Delci is not difficult to drive, and the dynamic nature is such that it sounds pretty impressive on most anything. So, a decent Dongle Dac would suffice. You can find some very capable and very nice dongle dacs for relatively cheap. As the market saturates, competition gets heated, prices naturally go down, and the consumer reaps the benefit.
Sound Impressions
Note: before I dive into the sound, I just want to preface it all by stating that I did in fact burn the Delci in for roughly 75 hours, give or take. I did notice a slight change for the better. I don’t usually say this, but I have to report what I hear. The sound relaxed a bit, less intense in the sub-bass (still heavy though) slightly more balanced as a whole too. Also, I listened to many different sources during this time which helps me to get a feel for how the Delci behaves using these different source devices. I generally prefer Uapp (USB Audio Player Pro) as my music app which can be found on all of my digital audio players. Occasionally I’ll use Poweramp, and Hiby Player too. I use all flac or better files stored on my devices.
All-rounder
I’m going to straight-up come out and say that the Delci is an all rounder set which can replay darn near my entire library pretty well. A very good mix of musical and technical too. Folks, I wouldn’t be surprised to see some folks Rating this set the best you can buy under $100. I don’t know if I’d go that far because it is an impossible thing to quantify. But folks, this is a nice sounding iem. Of course, we all have preferences and so what’s good to me, may not be good to you. Also, there are some real and true KILLERS under $100 anymore. That said, I’ll tell you all without skipping a beat that the Kefine Delci is an absolute stud! It deserves to be in the top five, maybe top three almost across the board. It replays all genres pretty well and excellent for the cost and the tuning.
What does it sound like?
The Kefine Delci comes across slightly V-shaped to even U-shaped to my ears with only mildly recessed low-mids. The sound is warmer than neutral but there are some moments of that neutrality coming through. There’s a very nice tonal balance across the mix with only a slight lean in favor of the sub-bass. No undue peaks, no huge cavernous dips either. Just a bigger hill to the left and a smaller hill on the right. So, it is a warmer sounding set, but with a clean replay. It’s also an organic replay to my ears. The Delci provides a seemingly authentic timbre experience with a natural hue to everything I listen to. Also, the macro-dynamics are pretty vibrant and vivid for a warmer replay which adds some good energy to my music. Nothing boring here. It’s fun but it’s also composed, which is not usually the thing I’m saying at $59. Every area is represented well. From the bass, to the mids, and on through the treble, each 3rd of the mix has a stake in the dynamic balancing act that Kefine created. Not dry, analytical or thin either. This is a lush response which still creates space between instruments and still contours notes very well. Especially for the price (you’ll hear that a lot, just a fair warning). The stage is wide, Imaging is better than it should be, and separation of instruments is actually good!
Condensed Sound Between the 20’s
The Delci has a very rotund, almost stentorian bass that doesn’t feel sluggish at all. Basically, I’m saying it’s able to bang and it does so with some precision while still being able to maneuver through more complicated bass lines with good micro-dynamic agility. The Delci’s low-end is pretty concise at decay and is nimble and ductile enough to move through the tonal shifts of even complicated bass tracks pretty well. I suppose some may want a hair less quantity and a slightly tighter rumble and slam (like a BA or Planar), but the Delci sounds very well done. It booms in a big way, sub-bass focused, haptic reverberant muscle. Still not for bassheads though. The midrange comes through only slightly recessed against the rest of the mix. Folks, the mids are very clean, rich too. But not in a warmly veiled and foggy way. This is a clear, relatively airy and open sounding midrange. There’s texture there, some definition to notes in the midrange as well. The treble is well extended, but it comes through with no annoying peaks. The treble is smoothened over and does well to uplift the sound as a whole. Technically the Delci is much better than it should be. I realize I’ve basically already said this.
I have a set for you…
Folks, I just want you to get a good set that performs well across the board for the price. The Delci does so in its own way. There are so many tuning variations of what “good” sounds like. The Delci does V-shaped remarkably well, and it seems like the sound is effortless for these drivers. I want to give you options that won’t feel like a waste of money for you. I realize that some of you have already signed off on this set because it simply isn’t the sound you are looking for and I get that. However, if a nice sized bass, natural sound, a clean approach, good midrange and a non-offensive but also vibrant enough treble with a good technical foundation is what you are after… I have the set for you. Let’s check out each 3rd of the mix…
Bass Region
The low-end of the Kefine Delci can thump, and it can rumble deeply. Enough to satisfy those folks who enjoy some good ole’ guttural rumble. The low-end has some bravado, or at least some confident swagger and it does so in a physical way. What we have is a strong sub-bass presence and a nice glide downhill through the mid-bass on into the mids. The Delci does have some spill over into the midrange and I wouldn’t want it any other way. The sound is well structured, well textured, and there’s almost a certain deep pitched vibrance in the reverberant rumble. There’s a nice note edge as well. Not too smooth and with a nice amount of crispness too. Furthermore, the Delci also has good density and weight afforded to most notes in the low-end. Shoot, in the entire frequency. This is a well-done bass region which walks that fine line of mature and fun. Why can’t it be both?
Sub-bass
The sub-bass definitely takes on the brunt of the low-end emphasis. This is a very physical, full-bodied and formidable bass that I can feel in a haptic sense. The Delci has a deep pitched grumble down low which extends better than expected. The Delci sub-bass has decent to good layering and textures to my music down low which does add some dimension and somewhat distinct layering of those sounds. I wouldn’t call the Delci pillowy or softly lined either. There’s contour to sub-bass notes (depending on the track) with good micro-abrasive edges to the sound. However, the nice thing about the Delci sub-bass is how deep it can rumble while still keeping the note edge. It’s a clean sub-bass for the price. Not quite basshead but great for fans of a good and elevated lowest of lows. Listening to “Mancey” by Andrew Bird, the bass guitar gets very low in pitch in this instrumental track and resounds in a very sonorous way. Most sets will carry the bass well but not all can do so with roundness to the note. With convexity. The Delci easily pulls this off while also sounding organic and ultimately pretty clean too. “Paradigm” by The Head and the Heart is another track that’s very deep with a raucous bassline. The Delci has no issues at all as it holds that low drone with nice energy and separates the lead’s voice in a well delineated manner. No real masking at all. The sub-bass (in my opinion) could be considered the cornerstone of the tuning.
Mid-bass
The mid-bass is tastefully done. Kefine knew exactly what they were doing as the mid-bass isn’t as lifted and forward as the sub-bass, but it is still impactful and can add ever-so-slight amount of wholesome fullness to the midrange while also adding just enough boom to bass drops, kick drums etc. Listening to “Move Along” by the All-American Rejects is a track which begins with very heavy kick drums. With the Delci in my ears, it shows a slight lack of emphasis in comparison to the sub-bass. Just a tad less rambunctious and meaty then some iems with over emphasized mid-bass replays. However, the mid-bass is both fast and tight in its decay. Not as full-on robust in authority or as bulbous as most but I do find that it’s enough for most any genre. Slightly dry and less humid in its density but good for complicated bass passages in my music. I find the Delci’s mid-bass to have a nice leading edge at attack, but it isn’t as hard lined as some sets. Without question it sounds nice, but I did feel that is worth noting. It definitely leans mature, clean, detailed and still has enough punch to carry most any track.
Downsides to the Bass Region
Without question the number one downside will be the elevated nature of the bass in general. I have many friends who only want the ultra-tight and snappy low-end that doesn’t even hint at getting in the way of the midrange. In the Delci’s case, I do hear a slight bleed over into the mids. But also, I think that is a very good thing and helps in a myriad of ways. Other than that, there aren’t many issues that I see. The bass is deep, fast for its size, clean and decently well defined. Definitely a huge selling point for Kefine.
Midrange
I find the midrange to be quite nice folks. I really do. This was one area that I thought for sure I’d hear a typical V-shaped sound. I couldn’t have been further from the truth. Instead, the midrange is only the tiniest of hairs pushed back, good clarity, speed, and separation. Also, the midrange has good note density. Meaning, there’s actual body to the notes. The mids are pretty milky if you ask me. Certainly not dry, thin or analytical sounding. Also not fuzzy, cramped or veiled but… milky. I think the mids are great folks. No this isn’t some mid-centric iem which is made for vocals to shine. Having said that, for a slight-V to U-shaped tuning; the midrange is very present and highlighted, especially for vocals of both male and females. No, they aren’t out on a pedestal or pushed further forward, but the depth of the midrange, the spacing, the cadence and the natural timbre do help the Delci’s mids to hold their own very well.
Lower-midrange
The low-mids have just enough body imposed upon its notes from the low-end. There is an essence of warmth, north of neutral, and replays good and defined notes. Males have very nice tonality and separation is such that it allows their voices to sound almost prominent in the mix. Not quite though. It’s very tastefully done. The track “Colorado” from Cody Jinks features his deeper voice with a nice crisp inflection when the Delci is in my ears. I love the realism to his voice with this set. He sounds almost lush, but with enough crispness to also sound accentuated. If that makes sense to you. His voice doesn’t melt into the surrounding melody. The slight bleed from the bass region is showing its value on this track. Again, tastefully done. I keep saying “defined” and I’m looking for other words but English only gives us so many. However, Cody’s voice is defined well, and the body is there, and his voice does stand out and is well separated from the strumming guitar. Another track is “Time Stand Still” by Foy Vance. Now, in this track, his voice does sound a hint pushed back, not as forward I’d say. Or better said, his voice is in the same plane as the melody surrounding him. Of course this is the way the track is recorded too.
All in all, the low-mids are very nicely done for such a low cost. Instruments and voices come through with some added warmth, density and even some good depth for layering. I find I’m missing nothing with this set. Also, the low-mids are just clean enough to take this richer note weight and simultaneously have good separation and clarity.
Upper-Midrange
The higher portions of the midrange which usually, but not always, is where females reside. Most female singers are forward and even have hints of elated shimmer which sound perfect in a female voice. The pitch, tone & timbre all stay organic but in a slightly more vibrant way. Despite that, I also don’t hear anything shouty… ever. I feel the Delci takes me right to the cusp of shout and then pulls the reins back in. There’s a pleasantly gradual rise in the pinna gain and a seamless transition into the lower-treble. The upper-mids are nicely displayed against the higher peaking sub-bass and bass region. Never too strident, never shouty, never metallic. This is organic and natural in a wonderful way folks. Listening to Caitlyn Smith in the track “High”, the Delci has no issues capturing her elegant and feather soft build up to the chorus with a sweet tone to her voice, clean edges and nice emotion. However, it is the chorus that breaks apart most every iem on this track. In this song Caitlyn is in “ballad” mode belting her heart out while musical mayhem goes on around her. No doubt to emphasize her feelings. The Delci takes this track and compartmentalizes each individual sound very well for a single DD. Obviously, multi-driver sets have the capacity to do a bit better (doesn’t mean they will) but for a single dynamic driver earphone, the Delci is great for females.
Upper mids cont…
The upper-mids on the Delci are so much different from some of the other sets which head up the top-five in most folks under $100 lists. Most of those sets have a more pronounced upper-midrange with a slightly less natural and more energetic sound. There’re obviously a few detractors from that but for the most part it’s copycat tuning. Not Kefine. I actually love what Kefine did here. This is not a Simgot upper midrange. They didn’t copy anyone. Kefine took their own route and managed to absolutely nail this region folks. Females have body, they are crisp when they need to sound crisp, resounding when they need to be resounding, and they do it all within this wonderful capped upper midrange canvas. Never sibilant, never peaky, never glaring and never metallic sounding. Just pleasant. I suppose some folks will want more energy and I expect that. However, I cannot help but congratulate Kefine on a job well done. Females and higher pitch males sound very nice.
Instrumentation
Instruments are just the same. I feel that all instruments hit my ear with a natural sound to them. I hear nothing that is straight up wrong sounding. Not with the Delci. The only issues that I hear with instruments is with how the tonal & dynamic characteristics of the sound come across. Like in some percussion you won’t have that super lively snap to the sound as some sets. Snares sound great but they aren’t quite as strident and punctually biting as something like the Simgot EA500LM for instance. Not bad by any stretch but I want you to know what you are getting. Kick drums also could use just a hint more immediacy in the leading edge. Better said, they need that tacky edge to the big hollow boom. This doesn’t mean the Delci doesn’t have that, but it isn’t as noticeable. All strings sound nice, edgy enough, detailed enough to pick up the harmonics very nice, the finger slides etc. Okay, I’m not going through every note on every instrument as it is a foolish undertaking, wastes far too much digital ink (that’s a joke), and uses too many words for a reviewer trying to keep his ever-growing word count down. The point is, the Delci recreates most instruments in a very organic way, and it really is nice to hear at the price.
Downsides to the Midrange
The biggest drawback of the midrange would be for those who would much rather have that ultra-snappy and transient swift type sound. The type of sound which is born and bred to be clinical and analytical. Despite that, the Delci does have good technical chops, it just isn’t tuned to be a proper “technical beast”. It isn’t planar or BA quick either. I would also flip that coin and say that people who enjoy a much warmer & darker sound with syrup thick notes which ooze emotion are likely going to want to keep looking. Besides those two types of hobbyists, I don’t think the Delci misses much. It’s musical, transients are actually pretty snappy for a single DD with just enough decay. The Delci has good clarity and resolution for what it is, and the sound does have an emotional element to it. Add to that, the midrange is fairly well detailed too. Honestly, I don’t have much to complain about.
Treble
Looking at the treble region on the Kefine Delci, I would first point out that the sound is kept in check without any forced and unnatural vibrancy, or without oversaturating the upper portions of the mix in treble glare. Again, the Delci will take the listener right to the brink of intensity and then pull back the reins. There’s a soft cap on treble levels while still coming across with mild brilliance and sparkle. You won’t hear forced resolution brought on by boosting the treble through the upper treble. Many times, we will see these areas lifted too far in hopes to bring out micro-details and such. Just enough brightness to add some levity and luminance to the mix and this shows up at lesser or greater levels depending on the track and your source. Now, details are illuminated just fine in this region depending on the track of course. More on that later. Supplementarily, the treble also manages enough shimmer, air, and openness to create space, which adds some dimension to the upper portions of the spectrum. This isn’t some drab and boring treble either. I don’t want my words to come across that way. There is adequate and even better than adequate air and shine up top without offering any fatigue. This is as brilliant as a treble can get without coming across offensive. My opinion.
Not a treble head’s dream, not bad…
For the most part, the treble has a smoother sound than it is crisp. However, this in no way means that the treble doesn’t have some bite to it when called upon. No this isn’t BA, Planar or EST etc. treble and DD’s do have a harder time portraying the contour and roundness to notes at times, but I find the Delci does pretty nice. At the very least I’d say that for the $59 that Kefine is asking for, the treble plays very well with the rest of the mix and really does fit the tuning perfectly in my opinion. Certainly not a treble heads dream though, as it isn’t so boosted that treble junkies will be drooling or anything. Also, the bass region does have the bragging rights of the frequency. So treble heads probably won’t be impressed. That said, the upper portions of the mix do have good clarity and transient swiftness while I also hear good separation of instruments, voices, and harmonics. Stuff like the secondary harmonics of a cymbal strike never sound tizzy to me, or splashy at all. Always under pretty good control and decay in a natural way.
Extended… but not overcooked
Extension is another benefit of this tuning. I really like how Kefine kept the overall brilliance under wraps without losing control of the brightness while also giving the Delci a well extended sound up top. There is way more info past 8k then some folks probably know. I’m really not missing much of anything. Like I just stated, the extension isn’t the type which comes across metallic or splashy and never tizzy, which is a testament to Kefine’s tuning abilities. Is it perfect? C’mon, nothing is perfect and yes there are things I’d like to see. But also, this set is a budget iem folks! We can’t lose sight of that. There is only so much Kefine or any brand for that matter, can do at that price. So, with that thought in mind I really feel that this is a brand who knows how to be efficient with their time and resources to craft and create a set that replays my library like the Delci. The extension is nice, it’s actually good, and they didn’t have to overcook the treble to get there. They kept the treble in check, no peaks, no glare, no sibilance that is noteworthy. Brands like the “Simgot‘s of the world” really do boost these regions which ultimately will be a bit polarizing to a huge swath of hobbyists. Granted, I enjoy Simgot’s style, but I would say with assurance that more folks would enjoy the Delci and their approach.
Downsides to the Treble Region
The first thing which comes to mind is that treble heads or fans of this area are not going to be hugely impressed. I wouldn’t think so anyways. I know a few treble heads who would certainly look at the Delci as boring and probably not as vivid as they’d like. Treble notes could use some more 3D style bite and contour as well. The Delci does have a smoother than crisp sound and so I could see some people wanting a bit better. Also, for fans of a darker treble, I also don’t feel that they will enjoy the Delci either. Honestly, the Delci sits right smack-dab in the middle of both extremes. I find the treble nice but not everyone will share my feelings.
Technicalities
Soundstage
Okay, for a V-shaped iem, a single DD, a budget set, and for a bass heavy iem… the Delci has a much larger stage then I would’ve thought. Large as in… wide, tall, and reasonably deep. All dimensions are heard which does come across as slightly holographic. What I mean by that is the stage as a whole has a certain roundness of elements and layering which occurs. It isn’t some huge coliseum or even a large room, but the stage is very nice, and the overall sound quality is better for it. As always, not every track will come across this way. This is why I use the same 10 tracks to check for stage size. I will highlight one that I usually use in “Hook” by Blues Traveler. Right away the guitar persists past my ears with the drums beating in the background and the harmonica coming in just in front of the drums. It’s an easy song to pay attention to. After all, it’s the same damn chords played over and over again. Dimensionality, like front to back, width, and height comes through loud and clear. Once you’ve listened to a track such as this (along with any other track) then it’s easy to hear the ability of a set-in comparison to other sets. The Delci are pretty good friends. I’d say above average for a budget single DD. Which is pretty good.
Separation / Imaging
For the most part separation is pretty good. Probably better than “pretty good” actually. Unless you are listening to a track with heavy and consistent bass play. The Delci bass will overtake and slightly mask the sound at times. No real good way to get around that. Maybe EQ, or tip rolling. Anyways, the separation of elements within an imaginary stage is better than they should be. The only other caveat would be complicated tracks. Obviously, single DD’s will usually have a slightly harder time creating a distinction between these elements (instruments/voices) in more congested songs. Though Kefine has done a good job crafting a set with a good dual cavity and good acoustic properties which does help in this regard. Imaging is actually very well done and easily parsed out in my opinion. The sound is pretty clean, good enough resolution, tighter than usual transients for a budget single DD, good space as well which does help to separate the sound field elements. I also feel this helps a lot with where each of those elements are within that sound field. I can hear the partitioned off instruments with good left to right imaging as well as decent enough layering and front to back depth. Not bad at all.
Detail Retrieval
Details are very good in a “macro” sense and better than they should be in a “micro” sense. Beyond micro-details, I find the Delci performs well with micro-dynamics too. The quality of the sound is of a very high value for the price and the quality of the drivers I feel must come into play as well. Details do emerge pretty well. Let’s just say this; I don’t hear anything awfully congested or mashed together. Again, unless the track has a heavy bass presence or the track you are listening to is overly complicated and congested. Those are your caveats for detail retrieval. Any other situation and micro-details are brought to the surface with good clarity. Good for a budget single DD anyways. Honestly, for a fun, V-shaped iem with a richer note weight the Delci has performed very well in this regard. Musicality first iems aren’t usually very technical. Like I said earlier in the review. The Kefine Delci toes the line of musical and technical very well for what it is.
Comparisons
Kiwi Ears X-Crinacle Singolo ($79)
The Kiwi Ears X-Crinacle Singolo (soon to be reviewed) is Kiwi Ears latest budget offerings and another pretty good one at that. The Singolo is actually a collaboration effort between the YouTube personality “Crinacle” and Kiwi Ears. Folks, I love Kiwi Ears. They have made some special sets over the course of the last couple years. The Singolo is a single DD with an 11mm LCP driver and the special KARS (Kiwi Acoustic Resonance System) technology. This is a set which comes in with an MSRP of $79, just like the Delci. However, like I’ve said, the Delci went on sale and since hasn’t gone back up to MSRP. At any rate, the Singolo is a highly acclaimed and hyped iem which has gotten quite a bit of notoriety over the last month or so. Let’s find out how they differ.
Differences
Looking at the build quality, the Singolo is made purely out of resin and is formed very nicely. However, the all-aluminum build of the Delci is a step up in my eyes. Both are very nice but there is a difference when both sets are in hand. As far as the design, I’d think more folks would gravitate to the Singolo. It has those Kiwi Ears gorgeous faceplates, cool logo, wavy glitter mixed with bold colors, a clear shell and a smooth feel, just like a few other Kiwi Ears sets. As for me, I like the Delci. I like the simple aesthetic. I like the minimalist but very confident look and appearance of it. Accessories go to the Delci. Much better cable, better accessories in general. Both fit nicely but the Singolo probably offers better comfort for most folks. These are minor differences though as I feel both sets are comfortable for me.
Sound Differences
The Singolo has a closer to neutral sound as it’s big sub-bass presence really doesn’t warm the mix quite like the organic sound of the Delci. I find the timbre quality of the Delci is simply closer to realistic to my ears. It does take a couple more db’s to get the Delci to the same volume, but I’d also say that the Delci is rewarded a bit more with better sources and more output. The Singolo has that “Truthear Zero” type of bass-tuck tuning, where the mid-bass does a deep-dive roll-off into a scooped lower midrange to create a sort of sub-woofer effect. The Delci has the more typical tuning but with better perceived cohesion.
Between the 20’s
Listening to the Singolo I hear a more guttural sub-bass by the tiniest of margins, but the Delci has the cleaner bass to my ears. More exact in its leading edge, maybe a bit more precise too. Singolo sounds a hint softer, more detached (which isn’t necessarily a bad thing). The mid-bass slam of the Delci is bigger, a hair more authoritative and the transient response is tighter and better for complicated tracks, better defined. The midrange of the Singolo is thinner sounding, less rich but better technically. Details emerge a bit easier, and separation is more evident. Take nothing away from the Delci because its musical sound is a huge benefit against the Singolo’s drier midrange. I just find that Delci’s vocals, instrument timbre, and overall appeal will likely suit more folks. The treble region of the Singolo rolls-off sooner. It’s less brilliant, less air, thinner in note body and less engaging.
Technicalities
Details go to the Singolo. I only say this because the bass doesn’t really congest anything on this set. Also, the midrange is very clean, neutral and transient attack through release is relatively quick. Instrument separation is good in both sets, but the Singolo probably makes it easier to discern. However, the imaging is a bit better on the Delci with better layering of sounds in my opinion. Of course, these are not huge differences, but they are in fact differences, nonetheless. The soundstage is wider, deeper and equally as tall on the Delci. I feel this is a huge thing because the more holographic type of sound does add a lot to my music.
Further thoughts on this comparison
This comparison will come down to preferences. You really have to enjoy that deep sub-bass and rolled off mid-bass along with thinner, but also cleaner midrange notes. It takes a minute of brain burn to really grow to enjoy. I actually do like it quite a lot. However, between the two I feel this is a no brainer for me. I like the Delci, it is truly a top-class competitor in the price range that wins over for its musical sound, it’s fun sound, but also, it’s better than average technical chops. Both are very nice, and I’d understand anyone arguing against my thoughts but for me… Delci.
Simgot EA500LM ($89)
This next comparison features one of thee best iems that money can buy under the price of $100. My opinion of course. That set is named the Simgot EA500LM (EA500LM Review). The LM is a true “top class” iem with a huge following. Simgot has truly been on a tear through audio, like nothing I’ve ever seen. They’ve single handedly changed the game and forced other brands to step up their game. As far as the LM, it’s the successor to the wildly popular Simgot EA500 (EA500 Review). The LM is another single DD which houses a 2nd gen. 10mm lithium-magnesium dynamic driver inside of a beautiful chassis. I have to admit, this is a tough challenge for Delci. However, I could also state that these are two entirely different sounding iems.
Differences
Both of these iems are built entirely of metals, with the LM being stainless steel and the Delci completely made of aluminum. Both are built wonderfully but the Delci weighs only 5 grams. This is a huge difference from the LM which is as heavy as a brick. Both are comfy enough but no doubt the Delci takes the prize. One big difference with these two is that the LM actually comes equipped with three sets of tuning nozzles to tailor the sound to your preferences. Now, the look is an entirely different thing. The LM is truly gorgeous with its gunmetal color while the Delci also has its own bold charm to it. Both sets have a good unboxing experience. Honestly, as far as aesthetic is concerned, the LM is simply a beauty folks. I do enjoy both designs, however.
Sound Impressions
Both sets come across very cleanly across the mix. The LM has an almost neutral sound, whereas the Delci has a warmer and richer sound. Without question the LM is brighter and gets very close to shoutiness much easier than the Delci. The LM has a bit rawer energy in its sound but both sets have plenty of exuberance. Between the two, the Delci has the more organic sound which is closer to realistic to my ears. I find the Delci to have a bit more of a traditionally musical sound as well, though that interpretation may be different for everyone. Unless you can tell me what “musical” sounds like. Lol. Having said all of that, the LM also has some fantastic timbre of its own and may be one of its strong suits. Both sets really do have a very refined and resolute sound respective to each sound signature.
Between the 20’s
The Delci has a deeper sub-bass that comes across more authoritative and bolder. It’s just bigger across the board with less treble impacting the perceived bass quantity like the LM. The balance of the spectrum leans to the left for the Delci which naturally brings on more warmth to the sound. Listening to the LM you’ll hear more brightness which cancels some of the lower bass tones at times and in certain tracks. Both bass replays are very well perceived, but the LM is simply less guttural. I’d also say that the LM has a slightly softer leading edge to its bass notes. The midrange of the LM is more forward, possibly shoutier in some tracks, while the Delci is more reserved, less energetic, more emotionally charged and also less fatiguing too. Both sets do vocals very well for the price and both offer their own solid take on vocals. The LM is more forward, a hint thinner, more vibrant, slightly more energetic, tighter transients, more crispness & snap to percussion and better vocal clarity. The Delci comes across closer to natural, slightly smoother, lusher, with a more mellifluous type of midrange, debatably more musical. Again, both are very nice for what they are and the style of sound signature that they each represent. The LM has a brighter treble, more detailed, more crunch and bite, while the Delci has better extension into the upper treble without any undue peaks.
Technicalities
Technically speaking the LM is probably the more detailed iem between the two but the difference is negligible. Honestly, I feel both sets are very good in this regard. However, the LM is simply more illuminated and not as rich in sound which does help to bring the subtleties to the surface easier. Again, negligible. I feel the Delci does just fine as it’s just as clean sounding but simply more robust in note weight and less luminance up top. The LM and the Delci offer good separation of elements though the LM makes it easier to distinguish for me. Imaging is nice in both sets, though the Delci does provide just a hair better layering of sounds. Which brings us to the soundstage. After a lot of listening to these two I found the Delci to have a wider and deeper stage. I’m not saying the LM is bad here either. Both have a nice rendition of the sound field, but the Delci is a bit vaster in size. However, these are “in-ears” and so the difference between the two is slight. At the end of the day, both iems are nice technically. Both sets are resolute enough and clean enough per their respective tuning. Let’s put it this way…neither is a slouch.
Further thoughts on this comparison
I don’t know why, but these comparisons always turn into battles. I really try not to do this. Rarely do I succeed. However, I cannot say which set is better between the Delci and the EA500LM. For me anyways, because I do love them both. Both iems are truly fantastic for the price point. Also, both iems offer a different take on my music. Once again, this is a comparison which comes down to the consumers preferences. Hence, a “preference battle”. The differences are stark enough that neither really “wins”. Your preference will decide the “winner”. Do you like warmer, richer, less offensive, bassier and more musically inclined sound of the Delci? Or do you prefer a more energetic, dynamic sound with a slightly more detailed replay of the EA500LM? Both sets have an awesome timbre. I’d say the Delci is a bit more earthy and organic and the LM is more bright/natural or “off-natural” (if that’s a thing). I feel that both sets complement each other very well and I couldn’t say which is actually “better”, or which is a better value. I would certainly say that if you feel the Delci fits your listening preferences better than at $59 it is an absolute steal and would likely be the better value.
Is it worth the asking price?
The $59 dollar question (at least while it’s on sale). Is the Kefine Delci worth the price that Kefine is asking for? To answer this question the best way you have to look at the landscape of iems within its price point. I can tell you straight up that if you get the sale price of $59 then the Delci is questionably the best iem you can buy. That’s if you enjoy this type of signature. There is a sea of good iems around that price, though many of those sets are tuned slightly differently, different driver configurations etc. No doubt there are some Ballers! Some awesome sets that easily could be sold for more than their price. However, the Delci is truly a champion of this price point in my opinion. At $59 this is the easiest no-brainer I’ve suggested yet.
Different story at $79?
Now, if you are buying the Delci at the original MSRP of $79 then this is a different discussion. I still feel it’s worth the money but also you have better iems surrounding the Delci. The Artti R1, Artti T10, Kiwi Ears Melody, BQEYZ Topaz, Fiio JH5, Fiio JD7, Truthear Hexa, Simgot EA500, Simgot EA500LM, Simgot EM6L, BGVP P05, Muse Hifi East 6, EPZ Q5, EPZ X-Tipsy Star One, Letshuoer DZ4, TangZu Fudu, Moondrop Aria 2, Tripowin Olina, Tripowin OlinaSE, Dunu Kima, Dunu Kima Classic, and I’ll stop there. Please trust me that there are many more I could list. The point is, you simply have more options, and each option has its own realistic stake at one of the best under $100. So, at the price of $79 it’s a little bit more nuanced of an answer to the question of “worth”. However, with all that said, I still feel that the Kefine Delci is a no brainer. It really is that nice of a set.
The Why…
Because the Delci is built like a champ. The all-aluminum design is one you don’t see every day, and due to it being aluminum, the Delci is ridiculously light. I don’t think you know how nice an ultra-light earphone is until you’ve used them for a while. Also, the aesthetic is one that is easy to enjoy with some of the better accessories within that loaded price segment. However, the sound is always the real reason why anything is worth its weight in audio…of course. Anyways, the Delci has a very engaging sound that teeters on being technically adept and musically inclined. Kefine did a nice job crafting a fun sound that doesn’t miss out on the finer things in my music. A nicely deep and authoritative low-end with a good transient swift slam. It’s not a bass which overtakes any other area of the mix in a detrimental way. The midrange is milky and creamy. Yet also resolute, which is a fine mixture of descriptors for an earphone. The Delci has a signature which doesn’t offer fatigue with a nicely rendered treble that has good extension too. In fact, the extension both ways help to give the Delci a nicely wide stage and good depth for a 3D type sound at times. Also, I love that Kefine is a small company made of actual enthusiasts within the hobby, I can get behind that. This is a very good set folks. I don’t even have to think twice about it, for me the Delci is worth every penny.
Ratings (0-10)
Note: all ratings are based upon my subjective judgment. These ratings are garnered against either similarly priced sets or with similar driver implementations or styles with the unique parameters of my choosing. In the case of the Kefine Delci ratings below, that would be $50-$100 iems of any driver configuration. Please remember that “ratings” don’t tell the whole story. This leaves out nuance and a number of other qualities which make an iem what it is. A “5-6” is roughly average and please take into consideration the “lot” of iems these ratings are gathered against. $50-$100 US is a huge sized scope of iems, and so seeing a 9 should probably be pretty special. My ratings are never the same and each set of ratings tells a different story. Each time you read one of my ratings will be unique to that review. Basically, I create a Rating that makes sense to me.
Aesthetic
–Build Quality: 9.5 Built very well, all aluminum.
–Look: 9.1 Simple, bold, masculine.
–Accessories: 9.0 Pretty nice!
–Overall: 9.2🔥🔥🔥
Sound Rating
–Timbre: 9.7 Top of class timbre (my opinion).
–Bass: 9.1 Hello quality… meet quantity 🥂.
–Midrange: 9.1 Warm, rich, musical.
–Treble: 8.5 Non-Offensive with nice extension.
–Technicalities: 7.6 Technically better than it should be.
–Musicality: 9.5 Musicality is very nice.
–Overall: 8.9🔥🔥🔥
Ratings Summary:
For a set being judged against any and every iem between the prices of $50 and $100, getting an overall sound score of a “8.9” is huge. That’s definitely up there in my book. However, ratings are a terrible way to determine worth. I’ve said it in almost every review that… I don’t like them. They tell you nothing in a sophisticated manner, and they can be taken for truth very easily. The actual truth is, ratings can only tell you individual attributes and how they rank in one reviewer’s mind, per each category. It’s almost a problem. There is so much more that goes into deciding the real value of something. There’s nuance to this game folks! Just as we are different as people, so are the devices which we review and listen with. It’s damn near impossible to label anything “the best” in anything. Too much subtlety, complexity, and variegated nuance. Rating values are simple, nothing nuanced. That said, I feel a “8.9” is probably about correct if I average out the scores. But as a whole if I were to rate the entire package that is the “Kefine Delci” … I’d give it a “9.5” without batting an eye. This is how ratings can be pretty deceptive. A set can look better or worse in individual rating points, but it may come together a certain way too. It’s not about the sum of the parts, but instead it’s about how it all comes together as a whole.
Explain Yourself!
One thing which will always be divisive is “bass”. For whatever reason it is one of those areas which takes on the most scrutiny from the peanut gallery. I get more DMs about bass ratings than anything else. Do you rate on its boom boom capabilities? Or do you rate the bass region on its refined quality? In the case of the Delci, it’s a little bit of both. A “9.1” is fairly high in this price segment but I stand by it. Not many sets have a good quality with an elevated bass in this price point. There’s a couple but it’s rare. Also, treble heads will think I’ve lost my mind. How in the world can a relaxed treble score an “8.5”?! I would answer that it’s not about the quantity of brilliance and forced resolution all the time. Sometimes even a less brilliant treble which actually fits cohesively with the overall tuning can actually sound… better. Still, in this relaxed state, the Delci manages good details, has some bite, and has better extension than you may think. No, it’s not an ultra-defined EST type treble. But also, name a set under $100 that does have that type of treble. Yes, there are more boosted treble replays, I know this because I listened to them ad-nauseum over this Rating period. And yes, there are flat-out better treble replays. Hence why it’s only an “8.5”. The rest of the ratings I feel confident in.
Conclusion
To conclude my full written review of the Kefine Delci, I want to give a warm thanks to the good people of Kefine, in particular to Collin Yang for sending the Delci to me. This is a smaller company, a lesser-known brand, and a brand which isn’t trying to add flash and fluff or boast in an over-the-top manner while advertising their products. Their ascension has been organic. This is a brand formed by friends and like-minded individuals with a passion to create something that they would love and be proud of. I cannot tell you how important these brands are for the hobby. These are the enthusiasts who keep this hobby afloat, who challenge the status quo, and who keep the bigger brands honest. So, for a small brand who is trying to create a successful venture into audio and who has just begun… I thank you wholeheartedly Kefine! You have most certainly made a good product and I do hope folks take the chance on the Delci.
Thank you!
I also thank any of you who chose to click on the link and actually read this review. Similar to Kefine, we are a small website of reviewers who are trying to scratch out our spot in the hobby. So, it’s of great importance that any of you have clicked the link to our site. You are the deciding factor for whether we succeed or we fail and by all accounts… we’re doing pretty darn well. So, thank you. Beyond that, please check out other thoughts of the Kefine Delci. Not every reviewer sees things the way that I do. It’s that simple. We are very different, each and every last one of us. None two are alike. It would behoove you to look at other thoughts because we want you to make the right choice for you. After all, this entire journey is all about music folks. With that, I think I’m done with this review. Please take good care, stay as safe as possible and always… God Bless!