In case anyone was curious, when compared to my Gen 3 Astro A50 the H9 sounds comparable (depth, bass, etc), but the noise cancellation feature does provide crisper sound, especially with dialogue. I will say that the noise cancellation on the highest level makes me feel like I’m on an airplane a bit. I didn’t notice a big enough difference with the 3D audio to comment on it. The A50 is a little more comfortable, but that may be because it’s more broken in. I’ve got a bit of a big head, so the H9 started to feel tight around the 3 hour mark. Hopefully it loosens up, but it’s not a dealbreaker. The H9 also fully charged in a fraction of the time the A50 does, although I have heard that later generations of the A50 do charge faster than gen 3, so I can’t really compare to current gen. In all, I’m going to keep the H9 because of the noise cancellation and the fact that I can also use it on a PC.
One thing of note, it sounds terrible right out of the box because the game/chat feature is not just one or the other, but it’s a sliding scale instead. Once I moved it all the way over to game mode it sounded amazing. Hope this helps anyone on the fence about the H9.