I'm curious what is actually happening if my Helix is set up with a single input (in my case Variax VDI) into a preset where both DSPs are configured to take input from this device in parallel (e.g both set to "Multi"). Let's say on Path 1 I use a clean amp and on path 2 a crunchy one.
Is this signal from the guitar shared/split in some way, or have I effectively created the equivalent of two identical guitars feeding two completely separate rigs?
I'm trying to understand if this is the same as splitting a single path (Y or X/Y split) or not? Even if it is the same I suppose I could at least take advantage of additional DSP resources by using both inputs from the one source.