Just a head's up... If you misplace a knob on these units, you are s.o.l. when it comes to IK. Someone returned one of mine on a project, and apologetically returned it missing a knob and the company said "This is not a spare part we have generally available unfortunately.". They don't have any replacements, don't offer any, and cannot recommend any source of replacement.
I think I'll be able to track something down, but I got the feeling from my interaction with them that they give zero farts.