The advantage of Dual mode is that the H90 behaves like two independent effects processors; we’ll call them Path 1 (I/O 1&2) and Path 2 (I/O 3&4). You would be able to position each path anywhere in your signal flow. For example, use Path 1 to into the Helix and Path 2 somewhere in the FX loop. At any given time, both Eventide algorithms can be on Path1 or both on Path 2. You can also have one on each path. Be mindful, that dual mode, however, does not allow the use of inserts.
