Good afternoon Ed,
This is just a basic axiom to how FxSound works, and there’s no workaround.
It needs to be set as the Default Device at all times, and if this condition is not met, no audio can be processed.
You’re always free to switch to another audio enhancer, e.g.:
- Chrome EQ extension - free
- FireFox EQ extension - free
- EqualizerAPO - free
- SteelSeries Sonar - free
- DeskFX - free (see warning below)
- Neutron - paid