Yes, this is possible using Dual Routing.
- Enable Dual Routing in the System > Global settings on the H90 – https://cdn.eventideaudio.com/manuals/h90/1.7.5/content/system-menu/index.html
- Connect Amp 1 send to H90 input 1, H90 output 1 to Amp 1 return.
- Connect Amp 2 send to H90 input 3, H90 output 3 to Amp 2 return.
- Press the routing button on the H90 to determine which presets are on which path, more information can be found here: https://cdn.eventideaudio.com/manuals/h90/1.7.5/content/edit-modes/routing.html#dual-routing
Let me know if you have any questions.
