Most of the time the THX Spatial Audio does not work. In Razer Synapse, when I switch individual apps in the Output List from Stereo to Surround Sound or to THX Competitive Mode, there is no difference. Also when I try switching Audio Equalizer from Game to Movie or to Music, there is no difference. I have to restart my PC when that happens and half the time it starts to work and the other half the time it still doesn't work.