Logitech today unveiled the 5.1 surround sound speaker system that features 360-degree surround sound with dual Matrix modes for gaming. The two Matrix modes help to turn the stereo (two channel) sound into surround sound. The G51 speakers have two Frequency Directed drivers in each satellite speaker. The total RMS (root mean square) power on the system is 155 watts. The Logitech G51 Surround Sound Speaker System is expected to be available in October for a suggested retail price of $199.99.