18 €

Review published:




per Side






16 Ohm











102 dB








Daily Life


20 - 20000 Hz


The headphone magicians who can make music burn are back.
It is well known that you can get good headphones from BLON for little money, with sometimes more, sometimes less comfort problems, and the BL-01 raises the budget bar a bit higher with its almost 20 €.
However, it doesn't reinvent the wheel and so you can expect a similar sound from the dynamic driver to the BL-03, with the BL-01 bringing freshness to the signature and suggesting a bit more resolution.


When DREAMS come true. Apparently one has decided to take distance from BELIEF & OPPOTY. While with BL-03, BL-05 & BL-05s it is still called: NEVERGIVEUP, LETMUSICBURN and MUSIC AND DRIAMS, the BL-01 is content with the "catchy" slogan: MUSIC AND DREAMS LET MUSIC BURN. This time at least in the correct spelling. What exactly is meant to be implied by this must probably be asked to Confucius himself.

Ergonomics and BLON are usually not the best of friends. The exclusive use of metal in their newer IEMs, is certainly always a matter of taste due to the weight and shape, but at least gives a robust and also valuable impression. Especially with the BL-03, however, the sound tubes are too short, whereby the weight then plays a decisive role, as it can affect the fit. The BL-05(s) does a better job, but you still can't really talk about ergonomics, since the design is the main focus. The shape of the BL-01 is somewhat reminiscent of a mango, and whether you want to call a mango particularly ergonomic is up to you.
By my ear size I usually have no particular problems and so the BL-01 also sits quite well, but for small ears it could be too clunky and uncomfortable, because the center of gravity is also a little too far up and not at the sound openings. The tip in front of the sound opening can press unpleasantly to the ear and could have been rounded gladly, since this certainly plays no sonic role.

The scope of delivery does not differ from the other models mentioned except for a somewhat space-saving packaging. We get a set of silicone tips and a canvas pouch for storage. The cable is fiddly and purely functional to fumigate.

The isolation is quite tip-dependent and thus directly related to the seal achieved, but regardless, the case doesn't swallow much of the outside noise either, making this not a strength of the BL-01.


In contrast to the BL-03, the BL-01 has the more pronounced V signature and thus sounds a bit more lively and fresh. However, the mids are slightly thinner as a result and not quite as physical.

The bass exhibits a similar quantity to the BL-03, though I would call it a bit tighter and more linear. It lacks a bit of that organic kick of the BL-03, but seems cleaner and more on point. However, I would not attest him a bass head level. Still, it can pack a punch when it needs to, but always remains controlled. For such a budget IEM, a very decent performance.

The mids are a bit more recessed compared to the BL-03, making them seem a bit thinner, but also a bit more transparent, as the BL-03's mids, while pleasantly physical, can get a bit woolly at times or have too much body. In addition, the mids have more level upwards in proportion, which also gives them more openness and clarity. Voices have a good timbre, though they sometimes lack emotion for my taste.

The treble has a good extension, even though the BL-01 certainly does not fire off any detail fireworks and is also rather in the midfield in terms of resolution. However, the highs are very coherent and fit well into the overall tonal picture. I like the openness and they never tend to unpleasant peaks or sibilant emphasis. This makes the treble absolutely painless and the BL-01 listenable for hours.

The increased emphasis on the upper/lower mids, or rather the V-signaur, makes the BL-01 seem a bit tidier than the BL-03 and more open, which is reflected in the stage extension. One has an extended feeling of width and also the separation is good. Thus, the BL-01 is slightly ahead of the BL-03 here, but in return the BL-03 brings more intimacy and also naturalness.


Good budget IEMs are now a dime a dozen and only a few manage to stand out from the crowd. The BL-01 is not necessarily one of them. For what it is, it is a very good representative and at the price certainly a recommendation, however, you should be aware that if you are looking for an upgrade to the BL-03, you might want to dig a little deeper into your pocket (which is certainly in favor of the BL-03) to avoid getting the next sidegrade and treading water. Still, both differ enough to justify a raison d'être for the BL-01. A very well-rounded budget IEM that invites pleasant music listening, but lacks a bit of inspiration and relies more on safety, which is not a bad thing.



Here the processing plays a role and the usability of the scope of supply. Additionally the appearance, wearing comfort and robustness.

Here I evaluate for me subjectively the price/performance ratio - does not flow into the evaluation!

Z: No Brainer

A: money well spent

B: all right, you can do

C: gives better for less money

D: overpriced

E: collector's price

Daily life:
Here, I focus on the long-term audibility and whether I can hear it well out of the box. This is of course very subjective and therefore only a minimal deduction or bonus. 

(-0.1, 0, +0.1)


Rating in Letters

S: 9.5 - 10

A: 9.0 - 9.4​

B: 8.0 - 8.9​

C: 7.0 - 7.9

D: 6.0 - 6.9​
E: 5.0 - 5.9​

F: 0.0 - 4.9​











Second Opinion


CHI-FIEAR © 2020 by David Hahn

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