Top critical review
Arrived in an open box, poor quality!
October 1, 2018
I hope to have this frown turned upside down, but my box arrived as a non-sealed Sennheiser box with a shipping label attached. Not even in an Amazon box. No seal on it, no receipt, no paperwork. NO BOX!!!
After contacting customer service, they plan on reprimanding whoever sent it (hopefully firing them) and sending me a new pair. I then began function testing this open-box set.
I put on some music to start. The bass would 'click' during the beat of my music and the bass was very dull, at best. Not what is expected from sealed Sennheisers. The noise isolation is next to nothing, I could pretty much hear my kid breathing next to me.
The volume control wouldn't turn the sound all the way down either and at that point I took them off and complained some more!
Edit: I have tried them for an extra day now, and while the headphone ear cups are very large, and comfortable, their huge size is actually a pitfall. They have VERY different sound depending on where your ears sit inside them. When they're slightly tipped forward, with the edge of your ears touching the back of the padding, the bass gets very prominent compared to usual. But then perfectly centered, it fades into the abyss and further to the front edge, nearly non-existent. If the price point makes you happy with that kind of work-around for a closed headphone... I guess you could be happy with these.
But not I! Sending back.
I already own an Antlion ModMic 4.0 and ordered some Beyerdynamic DT770 Pro 250 ohm. This combo should make me very happy, and cost significantly less than the MMX 300 Gen 2, but with a better mic and the same ear drivers!