Closer Examination, Build Quality and Comfort

As soon as you take the Cooler Master MH630 out of the box, its extreme flexibility becomes apparent. You can literally bend it in any direction your heart desires without it ever creaking or showing any other signs of poor build quality. Both ear cups are affixed to a pair of joints and can be rotated up to 90° inward, which is a welcome feature because it helps you hang the headset around your neck or set it flat on a table. Such a high level of flexibility results in terrific adjustability regardless of head size. With that comes fantastic wearing comfort. This is indeed one of the most comfortable headsets on the market. It can be worn for many hours at a time and will never hurt your ears or press against the sides of your head too tightly. Straight out of the box, the clamping force is a bit higher than on the wireless MH670, but after wearing it for a couple of hours, the headband loosens up, which has the whole thing become just as comfortable.


The inner side of the headband is nicely padded and covered with mesh fabric. A combination of mesh fabric and memory foam is also used for the ear cushions. Both of those parts of the MH630 are very soft and well made, further adding to its excellent comfort.


The left and right ear cup are marked with their respective symbols printed inside the ear cushions. The ear cushions are completely removable. If you're not into mesh fabric, you can simply replace them with other ear cushions. The wireless MH670, for example, comes with pleather ear cushions (the inner side of its headband is also covered in pleather). That gives it better passive noise isolation, but also causes more heat to build up around the ears. In terms of sound quality, I didn't notice any significant differences between those two types of ear cushions. That's not to say the MH630 and MH670 sound the same—they definitely don't.


The outer headband, ear cup hangers, and ear cups are made out of dense plastic. Like with last year's MH751/MH752, Cooler Master decided to keep the design as clean as possible, so there are no iffy "gaming" details to be seen anywhere. There's just a subtle logo on both ear cups, and that's pretty much it. Together with a black-on-black color scheme, the MH630 looks stealthy and nice. Okay, if you're a fan of an in-your-face design, it probably won't be to your liking, but a headset like this will easily fit into any room.


The height of the headset can be adjusted by sliding the ear cups up and down the inner frame, which is made out of metal. There are no markings that would help you adjust both sides equally, but you can hear distinct "clicks" when changing the height, so you could simply count them—not that it particularly matters.


On the bottom edge of the left ear cup are an analogue volume dial and a microphone mute button.


The left ear cup also contains the microphone connector, tucked away behind a rubber cover. I'm not a big fan of this solution. While the rubber cover protects the connector, it makes the headset look uglier whenever the microphone's plugged in as it can't be removed—the cover just hangs there, leaning against the microphone plug. I seriously doubt many users will use their gaming headset as their mobile headphones; most people will leave the microphone permanently connected. It's a mistake to cater to such a minority.


The microphone arm is covered with a series of metal rings that make it easily bendable yet very stable. The microphone capsule doesn't come with a pop filter, which would be a nice touch and a cheap way to make the headset look even more professional.


The supplied audio cable has a twist-lock mechanism and terminates in a 4-pole TRRS plug. It's 1.5 meters long—it should be longer in my opinion—and fully braided. A 3-pole dual TRS splitter cable is supplied. You'll need it to connect the headset to a sound card with a separate microphone input and headphone output.