I’m not sure the OB-6 is in the same category with the A4 or Pro 3 when it comes to modulation… especially as the A4 and Pro 3 can sequence modulation parameters per step (sorry, I don’t know anything about the Peak).
I was hoping to kind of get a poor man’s OB-6 sound (paraphonic of course) by sending in my Prophet 5 into the Pro 3’s in. I’ve asked here (Sequential Pro 3 - #598 by alfiedotwtf) if anyone has a Pro 3 and a poly to try it out much appreciated!