Audio Filters and Reverb Zones not working well together?

We’re using low/high pass filters on many of our sounds, which works great in isolation.

We use a lot of reverb zones though, and this messes up the filters pretty badly. What seems to happen is that the reverb is using the complete, unfiltered sound.

What we want is the filtered sound to go through the reverb zone and then to the audio listener. Basically the signal chain seems to be random, or at least not possible to control (since the reverb zone is not a component that can be moved up or down in the inspector).

Does anyone know anything about how to solve this kind of problem and make sure that the reverb zone processes our filtered audio?

Thanks,
Erik & Oscar (project Else Heartbreak)

I have the exact same problem with Unity 4.6.