I’m confused by this. I understood that IRs are used to simulate speaker cabinets. However, I have a friend who recently got a Helix and seemed to download a full AC30 IR with amp, cabinet, mic, etc.. There are found on this page: http://grgr.de/IR/
We’ve tried them with a guitar into the helix and just had the IR loaded by itself. It sounded very similar to the live amp we had next to it.
Any idea what these are?