It's a non constant Q, non constant steps. I added all 15 steps for all 6 bands (one direction only) to the APx report. Very subtle changes just off of flat are easy, but the steps get a lot bigger as you get near the end. Going to constant Q/constant steps is a whole different ball game--it's 6x the active components, 12x the gain stages, no more LC, not for us.
It can be stacked on something as long as it doesn't have a transformer in the wrong place. Bottom line: try it. At worst, it will hum and you'll have to move it.
Loki Max is not for everyone, nor is our approach to equalization--which I think I've covered in the FAQ. Bottom line, there are a ton of ways to do EQ, at a crazy range of prices, from digital stuff that may be as cheap as free to parametric stuff to constant Q to single-gain-stage LC to passive. We chose single-gain-stage LC as the one with the least compromises overall, but there are absolutely compromises to each approach.