Five years on from the release of the original Tiamat 2.2, Razer is back with a successor ? rather unimaginatively named the Tiamat 2.2 V2. The ?2.2? moniker is important as that means each ear cup features a dedicated sub-woofer, meaning there are a total of four 50mm drivers in the headset as a whole. What does this sound like, and is it good for gaming? Let's find out.