What audio effect is used in this video?

10-11  Source: Network gathering  Views:1 

I'm trying to figure out how to achieve the audio effect used at the 9:00 mark in this video without recording it. I don't debate that I should be figuring this out myself, but I thought someone might be able to save me a bit of time.
If you think you know how to do it, I would appreciate you letting me know.
sounds like the same audio effect in most of the video. Try a really meaty analog wave and run it through some grungy effects. They are also applying some kind of wah wah to it....almost.
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