I previously used 2 H90s… 1 H90 before a stereo pair of Synergy Soldano preamps, and 1 H90 after. That sounded glorious.
If I just had 1 H90, I would prefer it after the amp.
Leon Todd has a video on using a Fractal AM4 with an H90 after it. That a minimalist but competent live rig.
Currently I use a Fractal Axe3 with a Soldano X88ir in one loop and an H90 in another loop… so I can “route” (inside the Fractal) what goes where. I almost always put the H90 at the end of the chain.
Anyway, there are 100 ways to use the H90 in a guitar rig.
It sounds like you know what you’re doing, so I would just experiment and do what sounds best to you.
