Default speaker mode reverting to Mono when changed to Raw?

Settings gets forced to Mono both when manually changing Project Settings > Audio > Default Speaker Mode to Raw in Editor and when scripting AudioSettings.Reset and setting config’s speakerMode to AudioSpeakerMode.Raw. It happens in build.

Am I missing another settings that might have to be changed in order to allow for Raw mode?

(Using Unity version 2017.4.3f1)

Raw seems to not be supported anymore. Is there a way to use it anyways?