The appearance is certainly spartan.
Overall, I think it is a smart-looking headset that doesn’t draw attention to itself.
It also feels quite light, and the thick cable surprisingly doesnt weigh it down.
Also, the strain reliefs on the cable fail to reassure me that theyll prevent fraying over time.
The microphone is well-made and very sturdy, yet the gooseneck design still allows for flexible adjustments.
This makes getting it in the optimal position easy.
While it doesn’t detach or retract, it does fold out of the way quite well.
The vocal quality is excellent, and it does a great job of blocking unwanted sounds coming through.
As for comfort, the Beyerdynamic MMX 300 Pro excels in this department too.
Although the fit is tight, the ear cups and headband provide enough cushioning for extended use.
Most aspects of the headset look and feel premium.
The drivers are supported by heavy-duty metal hooks which again are solidly built.
However, the form factor of the MMX 300 Pro represents an improvement over other Beyerdynamic models.
It has a relatively slim profile, being less wide and unwieldy than the MMX 200 Wireless.
The divers and ear pads are thinner, and the whole headset feels lighter too.
The jack secures tightly into the left driver, which is deeply recessed.
The microphone on the Beyerdynamic MMX 300 Pro is similarly well-built.
In focusing on high-quality audio, the Beyerdynamic MMX 300 Pro appears to have sacrificed features.
There are no options to adjust the sound, other than volume, either via buttons or software.
Beyerdynamic MMX 300 Pro: Performance
The sound produced by the Beyerdynamic MMX 300 Pro is impressive.
The STELLAR.45 drivers render all frequencies with clarity, especially the highs and upper mids.
The closed-back design helps to improve the sense of space and immersion as well.
This isnt such a problem for gaming, but its more disappointing when listening to music.
Should you buy the Beyerdynamic MMX 300 Pro?
Whether the excellent sound quality alone is worth this much, Im not sure.
A wireless version is available in the form of the H3Pro Hybrid.
Naturally, this is more expensive, but its amazingly still cheaper than the Beyerdynamic MMX 300 Pro.
I also recorded my own voice via the mic and played it back to hear how I sounded.
I have been gaming for over twenty years, and have experienced many headsets and headphones during this time.
Read more about how we test.
First reviewed October 2024.