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Review - Kefine Delci

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TLDR version on YouTube: TDLR - Kefine Delci

The Kefine Delci have been sent to me by Kefine for me to try them out and to share my opinions in this review. Kefine have not made any requests and, as usual, I will attempt to be as unbiased as humanly possible.

I was going to post the official page of the Delci, as usual, but looking around it seems that it is available from many retailers. I mention the price of 55€ in my review but it is available are various prices from various places, so I suggest you look around and pick the deal that interests you the most.

To avoid being repetitive in my reviews, you can find all the info about how I create the reviews, equipment used, how I receive the products and how to interpret my reviews by visiting: About my reviews


This is not the first set of IEMs that I have reviewed from Kefine, although they are still a new brand, with the Delci being only their second set of IEMs (as far as I am aware). Their first set, the Klanar, is a planar set that I reviewed in November last year. I said that, while the Klanar wasn’t my favourite tuning, there was no doubt that they had done a good job with their first entry into the market.

The Delci moves away from the planar driver and opts for a 10mm dynamic driver that combines DLC and PU. Priced at just over 50€, 55€ to be exact, it falls only just outside my ultra budget limit buy only by 5€, so I would still consider it to be a very well priced IEM.

So, how have Kefine done with their second set? Let’s find out.


As far as packaging, there is very little difference between this model and the Klanar, which comes in at almost twice the price. The outer sleeve is black instead of white but still features an image of the IEM, with some basic specs on the back.

Opening the simple black box that slides out from the sleeve reveals content that us also very similar to the previous model. The IEMs sitting in a simple piece of foam and a storage case underneath that contains the cable and 6 extra sets of tips (so 7 in total) in 2 core sizes.

As with the Klanar, the presentation of the Delci is nothing special but it is half the price of the previous model so I have no complaints.

Build and aesthetics…

As far as build and aesthetics, we again find they are very similar to the planar model. In this case we get gunmetal grey shells rather than black, and there is a slightly more pronounced elevation to where the simple Kefine lettering sits in the center.

The cable also opts for gunmetal grey hardware and connectors, this time in metal rather than plastic in the case of the Klanar. 

In general, I find the IEMs to be simple but very well built and extremely comfortable. I literally put them in my ears with the tips that were already on them and they instantly felt great.

I actually feel that these are a step up from the Klanar, which is great news at the price!


All tracks mentioned are clickable links that allow you to open the reference track in the streaming service of your choice (YouTube, Tidal, Qobuz, Spotify, etc.)

I first placed the Delci in my ears one afternoon in the office while listening to some blues, acoustic jazz and other simple relaxed music. I was immediately surprised by how much I liked what I was hearing. Things were relaxed yet detailed, smooth and warm but not dark, just a very nice listen.

I could honestly stop there and say that I really like these IEMs but I did my usual stint of using them for 5 days or so before moving on to my test track list and looking for specific points of good or bad, so I guess I will be a little more in depth than that 😉

Before moving on, here is the frequency response in comparison to my usual preference graph:

I really am glad that I listen to things before measuring them as, looking at the graph above, I would have immediately thought that they were dark and bassy, yet that is not the case.

Don’t get me wrong, they are certainly not bright and bass thin, but the warm smoothness that they offer doesn’t make me feel like it is missing detail and treble.

In the subbass region, I of course put them through my “Chameleon” test, which brought back quite a bit of rumble, making the track sound pretty impressive, but what was more impressive was that it managed to do so without becoming out of control or overshadowing the remaining frequencies too much. It is not the most subbass I have heard, nor is it the most balanced outcome that can be achieved with this track, but it is certainly not a bad rendition of the craziness that “Chameleon” can be.

With “Sun Is Shining”, there is a little too much in the lower ranges in comparison to the upper ranges, yet it is not something that I immediately dislike. In fact, I found it quite a pleasant and relaxed listen, with maybe a bit too much in the bass department but doing a good job of controlling it.

No Sanctuary Here” gives me a similar impression to “Sun Is Shining”, where I would not say that the Delci presents the track in the way I would consider my favourite, but even with that emphasis on the bass, it makes for a bassy electronic listen that I don’t find as tiring as I usually do with this kind of reproduction.

In my midbass fatigue test, I do find “Crazy” to have a little too much boom in that low end of the guitar but not enough to make me feel fatigued, meaning that it does a good job of both controlling the midbass, with good detail, and not bleeding into the lower mids too much.

In fact, I find that the midbass throughout the mids is the highlight of these IEMs. I spent a lot of time enjoying the Delci with a lot of blues and other electric guitar focused music and found the overall tonality to be very nicely presented. It is maybe missing some of the crunch that you would get on sets with a more present upper minds/lower treble range, but it does not lack detail and gives a great smoothness to the guitars that I find very enjoyable.

Vocals may be a little further back that usual but they are by no means absent and they have a great body and smoothness to them. For example, “Dreamin'” puts quite a bit of emphasis on the low end with the vocals not being the centre of attention but it does work well and presents a very relaxed sound that does not come across as anything being lost, just presented in a smoother way.

This presentation also works well for tracks that were a little too bright in their original recording and maybe missing a little warmth to the bass. “Walking On The Moon” by The Police makes the bass, and track in general, a lot more pleasurable than usual, although Sting is pushed back slightly more than I would prefer. This may not be the best for balancing the vocals against the music but it certainly helps get rid of the harshness that is present in this recording.

While the signature is not something that focuses on details, it also doesn’t give the impression of details missing, the driver does a great job of presenting them in a more subdued way.

In fact, my only complaint would be a peak that appears in the treble ranges that can sometimes coincide with cymbals and other metallic high pitched sounds, making them a little harsh on occasions. This is not a regular occurrence, at least I haven’t found it to be, but sometimes the percussion on a track will just find this peak and suddenly stand out against a very smooth track otherwise.

Don’t think that this is something that puts me off the Delci, it is not like they are sibilant or harsh at all, just that peak that sometimes pops up and says high, sort of bringing me out of the trance into which these IEMs seem to place me.


The Delci are a set of IEMs that have a musicality that I never thought I wanted, until placing them in my ears and just finding great pleasure from listening to them. They are not a set that makes details stand out, yet they are detailed. They are not shy on bass, yet they are not overpowering. They don’t make vocals the center of attention, yet vocals don’t get lost. They are just a very musical set of IEMs.

As I mentioned in the sound section, I found these to be an absolute pleasure for a lot of blues recording, especially those that are a little older and can be harsh and lacking a bit of warmth in the bass. The add body and warmth yet sound very natural doing it. They don’t sound like they are boosting the bass, they sound like they are smoothing it but without losing definition.

These are not a sound signature that I see people specifically asking for, yet I do see them as a sound signature that people will enjoy if they just sit back and listen to them. Yes, there is that peak that can make an appearance at times, but I really can’t find myself complaining about anything else.

While I found the Klanar to be a good first try by Kefine, I think that the Delci are a win, especially at the price point they come in at. They will obviously not be everybody’s taste as far as sound signature, they aren’t even my taste as sound signature, but I think they are a great set to have on hand when you just want to relax.

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