Yep two pedals in one,click on the cog link and that will explain it a bit better than I can :-D.
The first channel is a distortion with switchable diode selections led,germainium,MOSFET and the second is a active EQ overdrive the O switch is an order swith for when both are engaged.......overdrive into distortion or vice versa. I personally don't think the overdrive is miles away from a xotic bb sound,the knighfall is crisp and clear :-)