For example, there's this amp:

https://tonehunt.org/Cycle/09bb4ca6-5047-490c-a094-d8c1ec13d80e

That's a jumped Hiwatt DR103 that should require no IR. I load NAM into Reaper, then this Hiwatt into NAM. Interface gain at zero, all the knobs in NAM straight up. I can barely hear it.

Increase input gain, increase output gain until it sounds as "right" as I can get it. I don't have any idea where it should be set. Seems like everything at 12 o'clock should be right, but it's clearly not.

I downloaded a Vox model while ago that was extremely loud. I downloaded a bassman that was somewhere in the middle volume-wise but needed a boost on the plugin gain to get it to sound like where a real Bassman would be at the volume levels indicated in the file name.

I'm kind of new to plugins. When I've used them in the past, I used Helix Native which is pretty straightforward.

Are the models just that inconsistent in the NAM community? Am I doing something wrong?