I can't have any of the audio sliders above one step up from 0 without massively overpowering anything else on my PC. On startup I nearly deafened myself with the volume defaulting to halfway on the sliders.
Additionally, the tutorial videos in the story missions do not adhere to any of the volume settings, so I have to turn my audio WAY down on my speakers themselves before watching any of them to avoid being blasted away.
I rather like the music and sound effects in this and other CW games, but I feel like I can't really enjoy it in IXE because it's so imbalanced.