Switching Audio outputs

How do you switch playback form one audio device to another? The instruction in Audirvana is to stop playback to change audio output device. But when I stop playback of the current track and select another output device, output does not change. is there a way to totally clear the playback window of the current track? The only way I have found of changing audio output is to close and reopen Audirvana, which does not seem a sensible action.

That’s a problem. Needs to be fixed.