SoundSwitch allows you to easily switch between the different playback devices currently connected to your machine via hotkeys.
SoundSwitch is simple to configure; all you need to do is right-click on the systray icon to open up the settings. From there, you can select your preferred hotkey and select/deselect devices so that only the correct ones are available for switching. Once you are satisfied, it will run silently in the background. All selections made will be saved, so they are ready to go when the app restarts.
It will permit you to quickly select/switch your preferred playback devices (sound cards) by merely using hotkeys. With SoundSwitch, you only need to configure once between which playback devices you want to switch between and then press Ctrl+Alt+F11 to toggle automatically.