Acoustic Drums with Orig Kick by moogmusicinc published on 2012-11-05T17:51:00Z I tend to use the filters to beef up weak kick drums. I'll use the HP filter and add enough resonance that it begins to self oscillate. Using the envelope, I'll tune the (now resonating) filter to a pitch that compliments the kick and adds some beef. As you can hear, the audio triggers to filter and adds the low end accordingly. Beautiful stuff. You'll hear this on the kick drum, and then you'll hear it mixed in with the full kit.