How to Lerp between two EQ states on a Sound Emitter

I want to feed a sound emitter a value between 0 and 1 to lerp it between two EQ states. As far as I can tell the only way to set up EQ on a sound emitter is through a mixer, but it doesnt not seem possible to blend two mixer classes. I am basically trying to simulate a filter sweep using the Unreal engine.

My use case is that I am making a VR game where if you look at an object you hear more of its upper frequencies and if you look away it gets muffled.

Thanks