As a DJ and producer that likes to experiment with send /return FX and live production, I was really excited to implement the Kaoss into my DJ rig. Unfortunately after hours of troubleshooting and research I've determined this unit is useless for one major reason; gain staging is inadequate. On both the V10 and A9 mixers the send level causes the Kaoss to max out its input level and distort. If you turn that down enough and increase the output, you can't get enough gain to use the insert function and maintain a similar level to the rest of the mixers channels. This causes a noticeable difference in volume on the track that's active with the Kaoss's insert function. The only way around this is to use the master send and insert but not without substantial audio quality degradation.
I simply can't believe this to be the case as the unit is designed to be an in line FX processor for live performance (unless you are using it as a direct line in for a live drum machine, for which it's inadequately set up compared to many other drum machines).
In addition, the pads are difficult to use and synchronize tempo while quantizing to the incoming signal (auto beat detect doesn't work well at all, although you could use midi sync).
Long story short, this thing doesn't work at all for live DJ'ing on Pioneer equipment. I'll be selling mine. In addition, the levels of the various FX vary widely and you have to adjust the FX gain and feel out the pad location for various FX, requiring mandatory Cue'ing of any FX before live use. Or lots and lots of practice and memorizing with extra adjustments when switching FX on the fly. I can't think of why I would use this device for what it was intended. Maybe some firmware updates would help a few of these issues. It definitely seems like it wasn't designed or tested by real performance oriented artists.