Review - Hidizs S8 Pro Robin

Review - Blon Fat Girl (Sub 50€)

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Also available on YouTube in Spanish: Acho Reviews YouTube


The Blon Fat Girl have been sent to me by Linsoul in exchange for the publication of this review. They have not requested that I say or do anything specific, however it is always worth considering the fact that these IEMs have not cost me anything, no matter how unbiased I try to be.

As always, I will leave a (non-affiliate) link to these IEMs via Linsoul, as it’s the least I can do.

The Blon Fat Girl Are available via Linsoul here:


I really can’t start this review any other way than with the name of the IEMs. I haven’t read any reviews or comments about these IEMs but I am guessing that this is something that has already been commented on by many, all I am going to say is that I don’t think the name is a very good choice, no matter how much you want it to be remembered. Yes, there are probably a lot worse names out there but still, I’m sure Blon could have come up with something better. Let’s just call them FG.

I just said that I haven’t read anything about these, which is true, but I do remember them being launched recently as an ultra budget set, coming in at around 10€, which is probably within the top 5 of the cheapest IEMs I have ever reviewed.

So let's see if they are any good for such an extremely cheap price.


There is not a lot to say in this section, I mean, what can you expect for this price?

A simple box containing the IEMs with their fixed cable and a couple of spare tips. That is it, but again, we can’t ask for more.

Build and aesthetics…

The build of these is actually not bad. It’s not stellar (did I mention 10€?) but it is completely made of metal and the attached cable is not the worst you can get, even in higher price brackets.

The size and shape are going for a smaller bullet type style, similar to something like the Quarks or the Tanya, but a little bit bigger then either of those. They are sort of reminiscent of the Koss KEB90 but without the angled nozzle.

As far as comfort, they are not bad either. They aren’t small enough to disappear inside the ear but aren’t overly large either, so I really don’t have too much to complain about at this price.



Before getting into my opinion of the sound, let’s look at a graph of the FG compared to my personal preference target. Also, at the same time let’s add the BL03, Blon’s most successful model, to the graph.

Ok, now, for those of you that know what to look at on a graph, I don’t think that you will be surprised at what is coming. For those that prefer my subjective findings…

There is an elevated bass range that is something that I don’t personally care for. Usually I would break this section down into subbass and midbass but I feel that there is no real need here because the IEMs don’t do a great job of distinguishing between them.

Looking at the graph, you can see that there really isn’t much difference in the bass zone between the FG and BL03, in fact, the BL03 has slightly more. However, the big difference is in the quality of the bass. The whole low end just seems to merge into a large… I’m actually looking for a word to best describe this here… maybe “blob” would be a valid description.

There is just an overall lack of definition and clarity in the bass section, making things feel congested.

As we move into the mids, we have the opposite problem. Instead of a large blob, we have a large hole. There is a space in the center of the tuning which is where the mids should be, and they are just not there. I can’t say the mids sound bad, in fact, I played some simple mid focused tests and the mids aren’t terrible, but bring back anything that has lows or highs (we are getting to the highs!) and the mids just fade away into the shadows.

And the highs. The highs are over elevated and not elevated enough, all at the same time. There is a mismatch of frequencies happening in the upper ranges that can really create a weird sensation with instruments in these frequencies. There are peaks, including a fairly large one at my dreaded 5kHz range, which just present a treble that sounds… again searching for words… wonky?

Sound stage and image placement is very difficult to judge, well, actually it’s quite easy to judge negatively, as the mass of bass, lack of mids and random treble, all contribute to things not sounding like they should nor where they should.

Details… Well, I imagine you can guess.


Blon really made a name for themselves with the BL03, a set of IEMs that was loved by a lot of people. I don’t mind the BL03 even though they are not something I highly praise as I preferred the BL05s, but that is a personal opinion. Since then they have released quite a few models, some quite “off the wall”, but none have really had the success of their first model.

I’m afraid that I can not relate anything from the FG to the BL03. While I may not have been the biggest fan of the tuning of the BL03, it’s performance is fairly decent, whereas I have struggled to not be more negative in this review towards the FG.

I really don’t like leaving negative reviews, as I feel that this hobby is so subjective that somebody is always going to like things that I don’t. That might also be the case with the FG, who knows, but there are just so many good alternatives out there, even at the same price (and sometimes even cheaper), that I really can’t see the point in owning these IEMs.

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