Review: Beyerdynamic Amiron 300

We tested Beyerdynamics’ first true wireless headphones, Beyerdynamic Free BYRD back in December 2022. At the time, Beyerdynamics hadn’t quite gotten into the game and didn’t really manage to convince us. Given the eminent over-ear headphones they usually manufacture, which often receive excellent ratings, we had high expectations back then.

Now, three years later, expectations are just as high as we have since tested ten-out-of-ten products like the Beyerdynamic DT 1990 Pro Mk II, which is admittedly a different type of headphone but proves that Beyerdynamic knows what they are doing. In the in-ear true wireless genre, Beyerdynamics’ current flagship is called the Amiron 300, and we were curious, to say the least, to see how development has progressed since 2022.

An overview – Beyerdynamic Amiron 300

In terms of performance, the hardware is fairly typical for a pair of high-end in-ears. Bluetooth 5.3, seven hours with noise canceling on and an additional 28 hours with the case, standard codecs including LDAC, and multipoint connection. In the box, you get ear tips in five sizes and a charging cable. And beyond that, there isn’t much more to mention. Looking back at the Free BYRD, Beyerdynamic went all out with five sets of ear tips plus three sizes of memory foam tips and better battery life. So hopefully, Beyerdynamic has focused on other qualities like control and sound.

The Beyerdynamic app – a clear improvement

We immediately notice improvements regarding controls and options in the app. Above all, Beyerdynamic has now truly entered the game in terms of button controls. You get 1-click, 2-click, 3-click, a 2-second long press, and a short-long press. It is also very easy to configure each earbud thanks to a well-designed interface, and the only thing that is locked is the long press, which is used to adjust the volume. Otherwise, it’s free rein, which gets a clear thumbs up! Beyerdynamic has also included a “Sidetone” feature where you can choose whether or not you want to hear your own voice when using the headphones as a headset.

Furthermore, you can, for example, choose in detail which voice prompts should be active. If you don’t want to hear repeated warnings that the battery level is low, you can deactivate these or simply turn off all notifications entirely. And of course, you can select German, in addition to English, as the default language. The noise canceling has adaptive or manual settings, and just like with the transparency mode, there are five levels to choose from. Finally, there is the built-in EQ with a number of presets and five frequencies you can adjust yourself. Pretty standard there too.

With all the worldly details covered, we now move on to what’s important: the sound and the experience.

The Soundstage – Beyerdynamic Amiron 300

We started by firing up Yosi Horikawa – Bump to see what the Amiron 300 is capable of in terms of acoustic ability, detail, and spaciousness. The Amiron 300 performs excellently and effortlessly, creating a wonderful spectacle of rhythms and effects. The sound is crystal clear, and you can hear every detail. Compared to the Beyerdynamic Free Byrd, this is something else entirely, and the level is much higher. To test the speed and depth of the bass, we played James Blake – Limit To Your Love, a particularly demanding track for the low registers, but even here, the Amiron 300 doesn’t hesitate for a moment. The bouncing sub-bass is clear. In the next test track, Christian Sandquist – Fence Love, which features a bass tone near the end meant to be felt in the stomach (simulated), the Amiron 300 doesn’t quite succeed entirely. In some cases, we also get the feeling that the Amiron 300 normalizes the sound, especially when listening to Solar Fields – Phase 09_Sombrero. The overwhelming bass is there but is somewhat balanced in a pleasant way against the rest of the frequency range. But now we’re down to details that, for the most part, have no significant impact.

The soundstage is phenomenal and wonderfully rich. The midrange elegantly ties the top and bottom together so that everything fits without feeling crowded, while the richness of detail makes you physically want to reach out and touch the music.

And that applies regardless of which genre we throw at the Beyerdynamic Amiron 300. So the final verdict is that they are a competent all-rounder with very few weaknesses.

The Experience – Beyerdynamic Amiron 300

The headphones are very light at 4.4 grams per bud. We have experienced lighter headphones, such as the Anker Soundcore Liberty 4 NC which weighed 4 grams per bud, but that is rare. The low weight makes you slightly worried they might fall out—you don’t really feel them—but during our test period, they stayed put. The transparency mode is on par with the Sony WF-1000XM4 (which has long been an example of really well-tuned transparency), and the buttons are easy to find with your fingers. One detail we also like is that the app doesn’t just show the battery status for each bud, but also the estimated remaining runtime. We did notice, however, that an estimated hour left isn’t exactly an hour.

One detail that is irritating, however, is that you cannot adjust the transparency mode unless both earbuds are active. This is a strange oversight when everything else works so well. Furthermore, we aren’t hugely impressed by the battery life. Having recently tested the Anker Soundcore Sleep A20, which offers fourteen hours on a single charge and 60 hours with the case, 38 hours total without noise canceling feels a bit lackluster. And of course, sound-wise these headphones can’t be compared, but the case could have benefited from a bit more capacity.

The Bottom Line – Beyerdynamic Amiron 300

Despite a few flaws, the Beyerdynamic Amiron 300 is a clear-cut redemption after the less successful Free BYRD. We found a few weaknesses that are essentially minor details and might possibly disappear with future updates. The important thing is that the soundstage is consistently phenomenal; it captures you, and while you might not get as distracted as with the ten-out-of-ten Beyerdynamic DT 1990 Pro Mk II, it’s very close. The transparency mode and noise canceling deliver, and the controls are exactly to our liking. The price of the Beyerdynamic Amiron 300 is approximately 2,900 SEK, and for those who value the soundstage above all else, these headphones are a perfect option and well worth the money. The focus is on the sound, but the controls are on the same high level.

So finally, we can only happily congratulate Beyerdynamic on a pair of fantastic headphones. It’s great to have you back on the podium, even in this category!

Beyerdynamic sent review units for this test. Senders of material have no editorial influence on our tests; we always write independently with our readers and consumers in focus.