What is it? Razer’s Tiamat 7.1, the first headset to feature 10 discrete drivers for true 7.1 surround sound. How much? $179.99 from Razer’s webstore or Amazon.com What does it do? The Tiamat is a desktop headset, with very long cables, a large volume control unit (which features a toggle between headphones and an audio system), and a reliance on USB power. It has five 3.5mm jacks, four for different audio channels and one for mic, along with a USB used exclusively for power. Each circumaural cup has five drivers: one for front, rear, and surround, along with a center channel and a subwoofer in each ear. Razer’s other 7.1 headset, the Megalodon, makes do with two drivers and virtual surround, so this is a significant step...