There is no surround effect. - Model SC-GNW10

Make sure that “Panasonic SC-GNW10 (Game)” is selected as the sound device on your PC. Depending on the specifications of the computer, the settings may change if you plug the USB cable into a different terminal or if you restart the computer. If this happens, change the sound settings on the computer to “Panasonic SC-GNW10 (Game)” again.
Check if your PC/Gaming console and the content being played back support surround (multi-channel) output.
Check the sound settings on your PC/Gaming console.
Check the sound settings within the game.