The Vengeance 1500 USB gaming headset is the higher end model of their newly released headsets, with 5.1/7.1 channel sound, a 50mm driver and Dolby Digital support.  The Vengeance 1300 uses analog plugs, not USB but still offers 5.1 surround and 50mm drivers.  As the 1300 is analog it does not require drivers whereas the 1500 does require software in order to emulate 5.1 and 7.1 surround sound.  From Neoseeker’s findings, you need a discrete sound card that supports Dolby Surround in order to get the most out of the 1300, while the 1500 will sound the same regardless thanks to its USB connection and software.

"We’ve got two of Corsair’s newest headsets in the Neo labs today, the Vengeance 1500 and Vengeance 1300. The higher-end model, the Vengeance 1500, supports audio formats such as Dolby Digital and Virtual 7.1 Surround. The Vengeance 1300 on the other hand is an analog headset that performs best when paired with a high-end audio card that can push the unit to its threshold. Find out if any of these options are suitable for your audio headphone needs while you’re camping in front of the computer (or in your game)."

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